JPS5839597Y2 - magnetic recording and reproducing device - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a magnetic recording/reproducing device which includes, for example, a small-sized electronic computer and a small-sized magnetic recording/reproducing device housed in the same housing.

Recently, for example, an electronic desktop calculator and an ultra-small magnetic recording/reproducing device called a micro cassette tape recorder have been housed in the same housing, and by making clever use of the functions of the calculator, the display section can display the ultra-small magnetic recording device. 2. Description of the Related Art Magnetic recording and reproducing apparatuses have been proposed that selectively display the amount of tape travel of the recording and reproducing apparatus.

Therefore, in this type of magnetic recording/reproducing apparatus, a means for counting the amount of tape travel is provided especially for the purpose of quickly searching for a desired reproduction position.

For example, right now, I have finished recording the = street. If you plan to record the remaining portion of the tape at a later date, if you use a general counting method that uses a mechanical counter to count the amount of tape travel, the counted value, that is, the tape count value, will be retained as is, so you can record the remaining portion of the tape at a later date. Even if the recording operation is performed immediately, there is no problem because the tape position corresponds to the tape count value.

However, if the counting means electronically counts the amount of tape travel, such as in this type of magnetic recording/playback device, power must be constantly supplied to maintain the tape count value, which consumes power. It will be consumed.

Therefore, this is a serious problem in this type of magnetic recording/reproducing device that uses a dry cell battery or the like as a power source.

On the other hand, once the power is turned off in order to reduce electronic consumption, the tape count value will be Q099 when recording is attempted next time.

However, if the recording operation is continued as it is, the correspondence between the tape position and the tape count value will be deviated, and the purpose of the tape count value, which is to quickly search for a desired position, becomes meaningless.

Therefore, in order to reproduce the correspondence between the tape position and the tape count value and give meaning to the tape count value, first rewind to the beginning of the tape, then clear the tape count value and , and then have to find the end of the recorded part before starting the recording operation, which is very inconvenient and wastes a lot of time.

Therefore, there was a problem in that the operating efficiency was significantly reduced.

This invention was made in view of the above circumstances, and its purpose is to provide a counting means for counting the amount of tape travel by counting the pulses generated as the tape travels, and numeric keys and settings. A setting means for numerically setting the position of the tape using a key, and a control means for storing the set value by the setting means in the counting means,
When the power is turned off, the count value by the above-mentioned counting means, that is, the tape count value, is written down, and later, when the power is turned on, for example, in order to continue recording, this tape count value is set by the above-mentioned setting means. By doing so, the correspondence between the tape position and the tape count value can be reliably reproduced, and after recording, the recorded content can be matched with the tape count value, which is a memo, for example, so that the desired position can be quickly searched, and the convenient An object of the present invention is to provide a magnetic recording/reproducing device in which operating efficiency is significantly improved.

An embodiment of this invention will be described below with reference to the drawings.

Figure 1 shows a magnetic recording and reproducing device based on this invention, which shows a small electronic computer for office use (so-called electronic desktop calculator) and a small magnetic recording and reproducing device for memos (so-called micro cassette tape recorder) in the same housing. This figure schematically shows the external appearance of a magnetic recording and reproducing device with an electronic computer housed in the body.

At the lower front of the housing 1, there is a power switch 2 for calculation, computer mode (CAL) or tape count mode (T
Selector switch 3 for selecting APE), keyboard 4. A display section 5 for digitally displaying calculation results, tape count values, etc. is provided.

Further, the upper front portion of the housing 1 is a cover 6 that can be opened and closed, and by opening and closing the cover bar 6, a micro cassette magnetic tape can be attached and detached.

The cover 6 is provided with a see-through window 1 through which the state of the loaded magnetic tape can be viewed, and a sound hole 8 through which reproduced sound is emitted to the outside.

On the other hand, on the right side of the housing 1, which corresponds to the cover 6, there are operation knobs 9 for playback (PLAY), playback fast forward (F, F, ), stop, rewind (REV, ) and recording operations, and a recording control knob 9. A button (RFC, ) 10 is provided.

FIG. 2 shows in detail the internal mechanism housed in the housing 1 corresponding to the cover 6, which is configured as follows, for example.

That is, FIG. 2 is in a stopped state.

First, in the case of playback, by sliding the operation knob 9 from the illustrated position A (stop) to the illustrated B position (playback), the operation knob lever 11 integrated with the operation knob 9 is moved to the left end and approximately in the center. Long hole 12at12b provided
It slides along guide shafts 13a and 13b inserted into the.

By this sliding, the bottle 15 fixed to the tip of the support plate 14, which swings about the guide shaft 13a, slides along the protrusion 11aK of the operation knob lever 11.
The plate spring 16 presses the protrusion 11a into contact with the protrusion 11a.

As a result, the operation knob lever 11 is placed in a locked state.

On the other hand, as the operating knob lever 11 slides, the switch shaft 17 integrated with the operating knob lever 11 also slides, and the power switch 18a of the switch mechanism 18 is turned on.

When turned on, the motor 19 starts rotating at a constant speed, and this rotation is transmitted to the flyhole 21 via the endless belt 20.

On the other hand, the support plate 22, which is integrally formed with the flyhole 21, is released from the locked state by the protrusion 11b of the operation knob lever 11 and rotates about the shaft 22a by the tensile force of the spring 23.

This allows the flyhole shaft 2 of the flyhole 21 to
1a is pressed against the outer circumferential surface of the take-up reel stand 24, and the take-up reel shaft 24a of this take-up reel stand 24 begins to rotate, and the unwind reel stand 250 is set on the unwind reel shaft 25a and the magnetic head 26 is rotated. Through this, the magnetic tape hooked onto the take-up reel shaft 24a is fed forward, and the magnetic tape is converted into an electric signal by the magnetic head 26 and reproduction begins.

By further sliding the operating knob 9 in the direction of arrow C in the figure, the switch shaft 17 turns on the fast-forward switch 18b of the switch mechanism 18. As will be described later, the motor 19 changes from constant speed rotation to high speed rotation. The playback fast-forwards into a so-called CUE state.

Next, in the case of recording, by pressing the recording button 10 in the direction of the arrow E shown in the figure, the recording lever 2γ integrated with the recording button 10 slides, and this recording lever 2γ
7a engages with the protrusion 28a of the lock plate 28, resulting in a locked state.

Furthermore, by sliding the recording lever 2γ, the erasing head 29 is rotated about the shaft 29a.
As a result, the degaussing magnet embedded in the erasing head 29)
29b comes into close contact with the magnetic tape.

Further, when the erasing head 29 rotates, the recording/reproducing changeover switch 30 linked thereto operates in the direction of arrow F in the figure, and the amplifier circuit (not shown) and the magnetic head 26 are switched to the recording state.

In this state, recording is started by locking the operation knob 9 to the B position shown in the figure, as described above.

Next, when rewinding the magnetic tape, by sliding the operating knob 9 in the direction of the arrow shown in the figure, the operating knob lever 11 slides accordingly.

The protrusion 11b of the operating knob lever 11 allows the support plate
2 rotates about the shaft 22a in a direction opposite to that during reproduction.

Due to this rotation, the gear 21b of the flyhole 21, which is integrally formed with the support plate 22, engages with the rewinding idler 31.

This rewind idler 31 is engaged with the rewind reel stand 25.

On the other hand, while the operation knob 9 is being slid, the switch shaft 1γ is also being slid, and the power switch 18a is turned on.

As a result, the motor 19 rotates at high speed, and the rotation is transmitted to the flyhole 21 via the endless belt 20 as described above.

Therefore, the rewind reel stand 25, that is, the rewind reel shaft 2
5a rotates, thereby causing the magnetic tape to be fed in reverse and rewinding.

Further, by sliding the switch shaft 11, the rewind switch 18c of the switch mechanism 18 is newly turned on, and based on the on/off of the rewind switch 18c, the tape count is performed by addition processing or subtraction processing as described later. It is designed to determine and control whether to perform the operation.

In addition, when rewinding is performed by sliding the operation knob 9 in the direction of the arrow shown in the figure as described above when the recording button 10 is locked, the operation knob lever 11 accompanying this slide
Due to the action of the protrusion 11c, the lock plate 2
8 rotates around the shaft 28b.

As a result, the projections 27a and 28a are disengaged, and the recording button 10 is released from the locked state due to the tensile force of the spring 32.

Further, in conjunction with this, the amplifier circuit (not shown) and the magnetic head 26 are switched to the reproduction state.

Therefore, the take-up reel shaft 24a has, for example, a third
As shown in Figures a and b, a magnet (permanent magnet) 33 is fixed, and this magnet 33 rotates integrally with the disc-shaped take-up reel shaft 24a.

A reed switch 34 is disposed on the outer periphery of the magnet 33 in close proximity thereto.

The on/off of this reed switch 34 is controlled by the magnet 13.
This is done by changes in the magnetic field that occur as the magnet 33 rotates 30 times, and turns on and off twice when the magnet 33, ie, the take-up reel shaft 24a, rotates once.

The on-off output of the reed switch 34 is
The pulses correspond to the rotation of the reel, that is, the pulses correspond to the amount of tape travel, and by counting these pulses as described later, tape counting processing (dividing the amount of tape travel) is performed. .

FIG. 4 schematically shows the circuit configuration of the main parts of the magnetic recording and reproducing apparatus with an electronic counter according to this invention, and is configured as follows, for example.

That is, 35 is a DC power source, such as a battery, for supplying operating voltage to the display section 5, motor 19, arithmetic control section 36, and the like.

The battery 35 is connected to the drive control section 3γ and the booster circuit 38 via the power switch 18a and the calculation power switch 2, respectively.

The drive control section 31 controls the rotation of the motor 19 as described later.

Further, the booster circuit 38 boosts the DC voltage V of the battery 35 to predetermined voltages VD, -VK, and +VF, and outputs the voltages.

The boosted voltages VD and -VK are supplied to the calculation control section 36, and the voltage VF is supplied to the display section 5.

Here, the voltages VD, -VK and +VF are the operating voltage of the calculation control section 36, the lighting voltage of the display section 50, and the display section 5, respectively.
is the filament voltage.

Therefore, the arithmetic control section 36 calculates the voltage VD and -V.
When K is supplied, digit signals D1 to D9 whose "O" level is -VK and "1" level is +VD are output to the display section 5 and the key input section 39.

The key input section 39 inputs the digit signals D1 to D9 to the key signal input terminal of the arithmetic control section 36 as key signals to be described later. 2. 4. This is what is output to 5.

And the arithmetic control section 36 is. Based on the above key signal,
Performs various arithmetic processing (at least four arithmetic operations and other necessary operations, etc.) or counting processing, etc. according to the operating state according to a pre-stored sequence program, and stores the results or necessary information, etc. In addition, the digit signals D1 to D1 are displayed on the display section 5.
Segment signals Sa to Sg, which will be described later, are synchronized with D9.
y S dp to dynamically display predetermined characters and symbols, and further sends a control signal M to the drive control section 31.
It outputs S and MF to control the rotation of the motor 19, and is composed of, for example, a large-scale integrated circuit (LSI').

The drive control section 37 also includes the fast forward switch 18.
One end of switch 18b is connected, and the other end of this switch 18b is connected.

Control details of the motor 19 by the drive control section 31 &"J
For example, when the power switch 18a is off (at this time, the fast-forward switch 18b is also off), the voltage element (■) is not supplied from the battery 35, regardless of the states of the control signals MS and MF. The motor 19 is stopped.

Furthermore, even if the power switch 18a is turned on and the control signal MS becomes the "1" level (hereinafter simply referred to as EMS-ON), the transistor 40 is turned on and the transistors J41, J41,
42 is turned off, thereby stopping the motor 19 regardless of the states of the fast-forward switch 18b and the control signal MF.

In this state, when the control signal MS goes to the "0" level (hereinafter simply referred to as MS-OFF), if the fast-forward switch 18b is off at this time and MF-OFF, the transistor 40.
43 is turned off and transistors 41, 42, and 44 are turned on, thereby causing the motor 19 to rotate at a constant speed.

On the other hand, the fast forward switch 18b is turned on or MF-ON (
At this time, if the transistor 43 is on, the transistors 40 and 44 are turned off and the transistors 41 and 42 are turned on, so that the motor 19 rotates at high speed.

FIG. 5 shows in detail the circuit configuration of the key power unit 39, which is configured as follows, for example.

That is, this key input unit 39 is mainly composed of the keyboard 4, which has eight row lines (hereinafter simply referred to as D1 to D8 row lines) into which the digit signals D1 to D8 are input. ) and arithmetic control section 360
At each intersection of a matrix consisting of three column lines connected to the input terminals Kl t K2 t K4 (hereinafter simply referred to as Kl j K27 K4 column lines), numbers such as [0 to 9] are marked as shown in the figure. Key, [÷, ×, -2+, 22%
, ψ−], [CM, RM, M−, M+
] and other memory keys 4a to 4d and (C/CF) tl
Calculation keys each consisting of a clear key 4e are provided.

Here, decimal point key (pause key) 4f? are not provided at the intersections of the above matrices.

That is, one end of the switch 45 of the decimal point key (pause key) 41 is connected to the line D1, and the other end of this switch 45 is connected to two backflow prevention diodes 46, 4γ.
1. are connected to eight column lines, and each connection point thereof is connected to one end of switches 3a and 3b constituting the changeover switch 3, and further, this switch 3a.

The other end of 3b is connected to the input terminal of the arithmetic control unit 360 and 4tK8, respectively.

In addition, 1. 2. 4. to 8
One end of the resistors 48 to 51 is connected to each of the resistors 48 to 51, and the other end of the resistors 48 to 51 (the other end of the resistor 48 to 51 is connected in common to supply the voltage -VK).

On the other hand, the D5 row line is connected to one end of the reed switch 34 via a backflow prevention diode 52, and the other end of this reed switch 34 is connected to the 8th column line.

Further, the emitter of a PNP transistor 54 is connected to the D6 row line via a +4 backflow prevention diode 53, and the collector of this transistor 54 is connected to the 8th column line.

And the above transistor 540 base &'! ,NPN
the rewind switch 18c via the type transistor 55.
The voltage element V is connected to one end of the switch 18c, and the voltage element V is supplied to the other end of the switch 18c via a power switch 18a.

Further, the emitter of a PNP transistor 57 is connected to the D7 row line via a backflow prevention diode 56, and the collector of this transistor 5γ is connected to the 8th column line.

The base of the transistor 570 is connected to one end of the power switch 18a via the three NPN transistors 58.

In addition, there is a backflow prevention diode 59 on the D8 line.
One end of the recording/playback changeover switch 30 is connected through the switch, and the other end of the switch 30 is connected to the 8th column line.

Further, a backflow prevention diode 60 is connected between the D9 row line and the D8 column line.

Note that 61 to 64 in the figure are diodes for preventing backflow.

Next, the key manual unit 39 configured as described above will be explained in detail.

That is, this key manual section 39 inputs the digit signals D1 to
1. is input to the input terminal of the arithmetic control section 36 as a key signal synchronized with D9. 2°K4. A time-sharing method is used in which the signal is output to one of eight sources.

When the selector switch 3 is set to the computer mode (CAL) side, the switch 3a is turned on, and the key signal from the key input section 39 is transmitted to the input terminal of the arithmetic control section 36.
2. It will be output to one of 4 in 1 and 4, and it will be in computer mode.

For example, when the number key is pressed now, the switch 65 is turned on, and when the digit signal D6 is on (+V D ), a voltage of 1 VD is input to the input terminal of the calculation control section 36 . is a numerical value tt based on the input signal 1 (key signal) and the above digit signal D6 at this input terminal.
5n, and process the numerical value "5".

Meanwhile, switch 3 is set to tape count mode (TAP).
When set to the E) side, the switch 3b is turned on, and the key signal from the key input section 39 is outputted to any of the input terminals Kl t K2 t K8 of the arithmetic control section 360, thereby setting the tape count mode. becomes.

In this tape count mode, the following signals are input to the input terminal 8 of the arithmetic control section 36.

That is, when the changeover switch 3 is set to the tape count mode, the digit signal D9 is directly input, so the arithmetic unit 36 determines whether the mode is the computer mode or the tape count mode depending on whether the digit signal D9 is input. It is designed to be judged.

Further, when the recording button 10 is pressed, the recording/playback changeover switch 30 is turned on and the digit signal D8 is input.

Next, when the operating knob 9 is in a position other than the illustrated position A (when stopped), the power switch 18a is turned on, which turns on the transistor 58, and the digit signal D7 becomes ttl'' (+
VD), the transistor 57 is turned on and the D7 signal is input.

Further, when the operating knob 9 is in the direction shown in the figure (during rewinding) (the east rewinding switch 18c is turned on), the transistor 55 is turned on and the digit signal D6 is input.

Here, the arithmetic control unit 36 recognizes that the recording/reproducing operation is in progress due to the input of the digit signal D7, and that the tape count process is a subtraction count process due to the input of the digit signal D6. It is supposed to be done.

Further, the digit signal D7 is input, and the digit signal D6
is not input (operation knob 9 is in position B or C as shown)
direction), the arithmetic control unit 36 recognizes that the tape counting process is an addition counting process.

Note that the digit signal D6 is input to the input terminal 8 when the power switch 18a and the rewind switch 18c are both on, but this depends on the timing at which the digit signals D6 and D7 are input, as will be described later. This is to prevent a delay of one cycle or more.

Therefore, in this embodiment, as shown in FIG. 2, when the operating knob 9 is slid in the direction shown, the rewind switch 18c is turned on earlier than or at the same time as the power switch 18a.

Next, when the reed switch 34 is turned on, a digit signal D5 is inputted, and the arithmetic control section 36 performs a process of counting the amount of tape travel based on this digit signal D5.

Further, when the decimal point key (pause key) 4y' is pressed, the switch 45 is turned on, and the digit signal D1 is inputted to the input terminal 8, whereby the arithmetic control section 36 outputs the control signal MS. (MS-ON) and motor 1
9 is temporarily suspended.

In addition, when the changeover switch 3 is set to the computer mode (CAL) side, the decimal point key (pause key) 41 turns on the switch 3a, so the digit signal D1 is input to the input terminal 4, and the computer mode It is now treated as a decimal point key.

In addition, the input terminal Kl of the arithmetic control unit 36 of the keyboard 4,
The keys connected to 2 are used in both the computer mode and the tape count mode, but memory keys 4a to 4d have different functions depending on the mode, so-called double function functions.

That is, when in computer mode, each has a clear memory function, a recall memory function, a memory minus function, and a memory plus function, and when in tape count mode, it has Q''!.

As will be described later, each unit has a setting release function (R), a tape count value setting function (S), a playback position setting function (r>), and a stop position setting function (day).

Here, in the tape count mode, memory keys 4a~
4d respectively (jR" key 4a, "S" key 4b
, "ST" key 4c, and "5TOP" key 4d.

Thus, the various signals described above are input to the input terminals K 1 t K2 t K4 t K13 of the arithmetic control section 36,
A method of displaying the results processed by the arithmetic control section 36 on the display section 5 in accordance with these signals will be explained with reference to FIGS. 6 to 8.

That is, FIG. 6 shows the stored contents of each digit of the display register 66 consisting of 9 digits of 4 pits and the 8 status flags at the input end of the arithmetic control unit 36 corresponding to each digit. The flag is provided within the calculation control section 36.

FIG. 1 shows a display conversion unit that converts the storage contents of the display register 66 into segment signals and the correspondence between the segment signals and each segment of the display unit 5. It is set in.

In other words, the 4 pits of the 1 display register 66 (R8t R4
The memory contents of t R2t R1) are AND matrix 6γ
, and the contents of this code are OR matrix 6.
8, seven segment signals (Sa, sb, Se
, SdySe, Sf, Sg).

FIG. 8 shows the correspondence between the storage contents of the display register 66 (4-bit input contents of AND matrix 6γ) and segment signals.
11" means that segment signals Sa and Sf are output and tt "jj" is displayed.

Furthermore, when the flag (S) is set, when input to the AND matrix 67, the segment signal Sdp is output and the decimal point "" is displayed.

Next, a magnetic recording and reproducing apparatus with an electronic computer, which is an embodiment of the invention, having the above-mentioned configuration will be described in more detail.

First, in tape count mode, for example, display register 6
When the memory contents of the display register 66 are giant pgo, seven ears, Σ color SEI (upper yo), the arithmetic control unit 36 synchronizes the memory contents of the display register 66 with the digit signal and inputs them as they are to the AND matrix 67, and the display unit 5, the unnecessary O'' will also be displayed as is.

Therefore, in this embodiment, the display register 6 is designed to blank unnecessary 0'' before entering the display cycle.
The contents of 6 have been changed.

That is, for example, when converting 4-bit binary "oooo" (0) to "1111" (15), unnecessary uOpp is blanked out as shown in FIG. The display content will be as shown in .

(Hereinafter, the above processing content will be referred to as zero suppression) 10th
The figure shows a flowchart of the above-mentioned zero suppression processing in the arithmetic control unit 36. Zero suppression is performed sequentially starting from the upper digit (9th digit) of the display register 66, and the numerical value [1 to
9] is detected, the zero suppression process is terminated.

That is, the arithmetic control unit 36 first specifies the 9th digit in flow 10 [9→DIGIT]L, and in flow 11 specifies the storage contents of the specified digit in the display register 66 (t R8°R4, R2, R1).
Check whether ” is “oooo”c (R=0)
do.

Here, R28R814R4+2R2+R1.

In the case of "o ooo", proceed to flow 12 and convert the memory content of the specified digit of the display register 66 to '1111' (15
→R) Proceed to L flow 13.

On the other hand, if it is not “o o o o”, flow 14
Proceed to , check whether the stored contents of the specified digit of the display register 66 are numerical values [R≧10], and check whether the stored contents of the specified digit of the display register 66 are numerical values
), the zero suppression process is completed and the sign (R≧10)
If so, proceed to the flow γ3 described above.

In this flow γ3, by adding “-1” to the specified digit, 1
Specify a new digit to check next (DIGIT-1-+
DIGIT) and proceed to flow 15.

In this flow γ5, it is checked whether the digit newly specified in the above flow 73 is the first digit (DICIT=
1) If it is L, the first digit, the zero suppression process is finished, and if it is the first digit, the process goes to flow 71 again, and the above-described zero suppression process is repeatedly executed.

For example, as in the above example, if the stored content of the display register 66 is 0110000100, first flow 10. γ
1. γ2 and 73 are processed in this order, and the storage contents of the display register 66 become '[IjiEIE[环 Seven奸j且IEi], and then the flow γ5. By processing γ1, 74, 73 in the order of
The processing in the order of 0°γ1, 72, 73 is repeated 4 times, and 1
51115151515100.

Furthermore, flows 75, 71, and 74 are processed in this order, and R=
Since it is 1, the zero suppression process ends and the process proceeds to the display cycle.

In addition, in this embodiment, the calculation control unit 3 is
When a key signal is output from the key input section 39 to either 1tR2 or 4tR8 to the input terminal of 6.

The arithmetic control section 36 stops outputting the digit signal, turns off the display, and performs the next zero suppression cancellation process in order to perform processing corresponding to the key signal.

That is, FIG. 11 shows a flowchart of the zero-the-breath cancellation process in the arithmetic control unit 36. First, in flow 16, the 9th digit is specified [9→DIGITAL, flow 1
1 indicates the memory contents of the specified digit of the display register 66 "R8, R4"
+ R2t Check whether R1" is tt1111' [R:15].

In the case of “1111”, proceed to flow 78 and convert the memory contents of the display register 66 to “tto o o o” [0→
R] and proceed to flow 79.

On the other hand, if it is not "1111", the process directly proceeds to flow 19.

In this flow 79, by incrementing the designated digit by 1", the next digit to be checked is newly designated (DIGIT-1-+D
IGIT) and proceed to flow 80.

In this flow 80, it is checked whether the newly specified digit in the flow 79 above is "0"["DIGIT
:0. If l L is "0", the zero suppression canceling process is completed, and if it is released at tt Oyp, the process goes to flow TI again and the above-described zero suppressing process is repeatedly executed.

Next, the contents of various calculation counts and control processing in the tape count mode described above by the calculation control section 36 will be explained in detail with reference to the flowchart shown in FIG. 12a.

That is, when the calculation power switch 2 is turned on, the voltage +VD is supplied to the calculation control section 36, whereby the calculation control section 36 operates.

First, in flow 100, the memory contents of all registers and the 8-manpower status flag are cleared, and in flow 101
Proceed to.

In this flow 101, the zero sensor 7 is
"I/S processing is performed and the process proceeds to flow 102.

In this flow 102, specify the 9th digit [9→DIGIT
, 1 and proceeds to flow 103.

In flow 103, the specified digit is incremented by 1 to specify the previous digit (DIGIT+1→DIGIT), and the process proceeds to flow 104. In flow 104, the digit signal corresponding to the newly specified digit is turned off. Reduces power consumption.

Next, the flow advances to flow 105, and a new digit is designated by t and j' for the designated digit (DIGIT-1-DIGITA), and flow advances to flow 106.

In flow 106, the stored contents of the designated digits of the display register 66 "R8, R4, R2, R1" and the contents of the flags (S, l) are converted into segment signals Sa to SgtSdp by the AND matrix 6γ and the OR matrix 68, and are displayed. Output to unit 5 (SEGMENT (DIGIT) ON,
SEGMENT (DIGIT 11) OFF) L, proceed to flow 10γ.

In flow 107, a digit signal corresponding to the designated digit (D9 in this case) is output to the display unit 5 (DIGIT-ON).
Then, the above-mentioned stored contents are displayed on the designated digit of the display section 50.

Next, proceed to flow 108 and check whether the specified digit is O'' [DIGIT 20] If it is L "0", flow 1
Proceed to 09.

In flow 109, the memory contents of the display register 66 "RB"
, R4t R25R1” is “1111”, that is, R215 [R215], and R=
In the case of 15, the process proceeds to flow 110.

In flow 110, the key signal from the key input unit 39 is stored in the calculation control unit 36 [R8, 4. 2. ni,→K],
Proceed to flow 111.

In flow 111, the digit signal (D9 in this case) corresponding to the designated digit is turned off (DIGIT-OFF) L,
Proceed to flow 112.

This is because the 9th digit of the first display is ranked,
This is to save power by turning off the digit signal D9.

On the other hand, in the case of R''515, the process proceeds to flow 113, where the same processing as in flow 110 is performed, and the process proceeds to flow 112 described above.

In this flow 112, flow 110 or flow 113
Check whether the input content of Kl is KNO (K=0
)do.

Here = 8 to 8,4 R4,000 to 2, +1 to
When the key signal is on, it is (0; when it is off, it is \O.

Now, since the designated digit is 9 digits, it is checked whether the selector switch 3 is in the computer mode or tape count mode.

In the case of K-0 (computer mode side), the process advances to flow 114, and a new digit is specified by setting the specified digit to "-1" (DIGIT-1→DIGIT), and flow 1
Proceed to step 15.

In flow 115, check whether there is a decimal point in the newly specified digit (DIGIT, , PCY, l L, if there is a decimal point, proceed to flow 116 and set the flag (S) to 7) ((S) set )L, if there is no decimal point, proceed to flow 111 and reset the flag (S) [[S]rese
t].

Then, returning to the flow 103, if there is no input of a key signal from the key input section 39 (K=O), the process starts from the flow 103 described above and repeats the process returning to the flow 103.

As a result of such repetition, in flow 105, the specified digit is "
0”, check flow 108 [”DIGIT
20], proceed to flow 118 from the designated digit 9” to °0
Check whether the repetition up to `` has been repeated 4 times (hereinafter simply referred to as count ``4'') (COUNT=4
)do.

If the count is "4", return to flow 102; if the count is not "4", proceed to flow 119.
Specify a new count number by adding 1 to the count number (COUNT+1-+C0UNT) and proceed to flow 1
Return to 02.

However, by repeating these steps, the digit signal D1~
D9 power! -I turns on next, and segment signals synchronized with these digit signals are output and displayed on the display section 5.

In this case, the stored content of the display register 66 is cleared in flow 100, and zero suppression processing is performed in flow 101, so the display content on the display unit 5 becomes [O0].

Next, when a key operation is performed, the flow 110 or 11 is
In step 3, the key signal from the key human power unit 39 is stored in the arithmetic control unit 36, and the process proceeds to flow 112.

In flow 112, as described above, the content of the key signal is
Check if it is 0 (K”1.0) and then 4
, 0, the process proceeds to flow 120.

In flow 120, it is checked whether the content of the key signal is ≧8 (K≧8), and if K≧8 is not the case, the process proceeds to flow 400.

In flow 400, it is checked whether the count is 4'' [C0UNT24], and if the count is tt4'', the process advances to flow 401.

In flow 401, the digit signal corresponding to the designated digit is turned off, and the process proceeds to flow 402.

In flow 402, zero suppression cancellation processing is performed and flow 4
Proceed to 03.

In flow 403, it is determined which digit signal is on and to which key signal input terminal the key signal is input, and based on this, so-called key selection is performed to determine which key has been pressed, and the flow proceeds to flow 404.

In flow 404, calculation processing is executed based on the result of key selection in flow 403 above, and the count number is cleared (0-
+C0UNT) and returns to the flow 101.

The above content will be explained in more detail.

In other words, for example, if you press the number key → Tsukasa, that switch 65
turned on.

Assume that the designated digit is now 6 digits in flow 105.

At this time, the flow 106. Tor, 108°109.
Processing is performed in the order of 110 and 111, and the digit signal D6 is input to the key signal input terminal of the arithmetic control unit 36 (
K=1).

Therefore, the flows 112, 120, 400, 401,
The numerical values tt5zp in the computer mode are processed in the order of 402°, 403, and 404.

When this process is completed, the process returns to flow 101 and a zero suppression process is performed, and while the number keys → digits are being pressed, the process is performed in the following display cycle.

In other words, if the designated digit is not 6 digits, the above-mentioned display section 5
The process is repeated at the same display cycle as when KCO, ) is displayed.

In addition, when the designated digit is 6 digits, check whether the count is aCt in the flow 400 (COUNT=4,
If the count is not 4'' (the count is set to O'' in flow 404), the process advances to flow 405.

In flow 405, clear the count number [0 → C0UNT
) and proceeds to flow 114, where the process is repeated at the same display cycle as when [0, ] is displayed on the display section 5 described above.

When the next number key is released, the process is repeated at the same display cycle as when [0,] is displayed, and the process is repeated in the flow 11 described above.
At 9, the count increases by "■".

This indicates that the key has been released, and the count is "4".
When the distance reaches (approximately 20 m5 in this example), the contents of the next Kiyo Kurisaku are accepted.

On the other hand, when the selector switch 3 is set to the tape count mode side, the key signal (input of 8 to the input terminal) from the key input section 39 is input to the calculation control section 3 in the flow 110 or flow 113.
6 and proceeds to flow 112.

In flow 112, the content of the key signal is K(
Check whether it is 0 (K=0), and if KNO (if the specified digit is 9 digits, in this example = 8), K is 7I:
Proceed to l-120.

In 70-120, it is checked whether the content of the key signal is ≧8 [K≧8], and if K≧8, the flow 12 is performed.
Go to 1.

In this example, since 1 = 8, the process proceeds to flow 121, sets the flag (TAPE), and recognizes that it is the tape count mode.

The process then proceeds to flow 122, where the contents of the tape count value storage register (hereinafter simply referred to as TREG) are transferred to the display register 66 (hereinafter simply referred to as DISPREG) (
TREG-) DI 5PREG), the computer display is switched to the tape count display as described below, and the tape count mode display cycle is entered.

This is a 5-digit register (1-digit code + 4-digit set value) in which the TREG & EAST tape count value is stored.

That is, when the process proceeds from the flow 122 to the flow 123, zero suppression processing is performed, and the process proceeds to the flow 124.

In flow 124, the content of the pause counter (hereinafter simply referred to as PCOUNT), which will be described later, is set to O'' [O→PCO
UNT), and then in flow 125 specify the 9th digit [9
→DIGIT) and proceeds to flow 126.

In flow 126, the same process as in flow 106 (S
EGMENT (DIGIT) ON.

SEGMENT (I) IGIT+i ) OFF), and then in flow 127, the same process as in flow 10γ (DIGIT, ON) is performed, so that the contents of the display register 66 are displayed in the designated digit of the display section 5. Ru.

Next, the flow advances to flow 128, where (DIGIT20) is checked, and if it is not "0", the flow advances to flow 129.

In flow 129, (R:15:) is checked and R=
15, proceed to flow 130, flow 131, then flow 132, and if it is not R215, proceed to flow 133.
The process then proceeds to the flow 132 described above.

Here, in flow 130 and flow 133, [Ks,
4. 2゜K1→K] processing is performed, and in flow 131, [
DIGITOFF) processing.

In the above flow 132, it is checked (PRE (DIGIT) set) whether or not the 8-manpower status flag is set in the designated digit shown in FIG.

If this status flag is set (in this example, the flag (TAPE) is set when the designated digit is 9 digits as described above), proceed to flow 134, and check whether the content K of the key signal is ≧8. , that is, at least 8 at the input end.
Check whether the input is on [K≧8].

In this example, since 1=8, the process proceeds to flow 135, where the next digit is designated ["DIGIT-1→DIGIT]", and the process proceeds to flow 136.

In flow 136, the memory content of DISPREG is '101.
0”, that is, R=10 (R:
10) When L, R: 10, the flag [S
] ((S) set ) t,, If R=10, reset the flag [S] in flow 138.
S]reset) and proceed to 70-139.

Specify the previous digit in flow 139 (DIGIT+1→DIG
IT)L, then in flow 140 (DIGIT, 0F
F) Perform processing and proceed to flow 141.

In flow 141, specify the next digit (DIGIT-1→DI
GIT) (8 digits in this example) and returns to flow 126.

Processes from flow 126 to flow 132 are performed in the order described above, and when the designated digit is 8 digits, the status flag is reset, so the process proceeds from flow 132 to flow 142.

In flow 142, as in flow 134, it is checked whether K>8 (K≧8). If K<8 as in this example, the process advances to flow 135 and the same processing is repeated thereafter.

In this way, after the above-mentioned processing is repeated, the tOn digit is specified in flow 141 and the process proceeds to flow 128, where a check is performed (DIGIT 20) and "O" is selected.
Therefore, the process advances to flow 143.

In step 0-143, it is checked whether the content "1010" indicating DISPREGK stop ""P" has been set. If it has been reset, the process advances to step 144.

In flow 144, check whether the flag (PLAY) is set ((PLAY) set)
L, if it has been reset, proceed to flow 145.

In flow 145, [9→DIGIT] processing is performed, and then in flow 146, (SEGMENT (DIGIT) ON,
SEGMNTCDIGIT+1)OFF') processing, the (DIGIT, ON) processing is performed in flow 147, and the flow proceeds to flow 148.

In flow 148, (D IGI T=0:) is checked, and if it is not 0", the flow goes to flow 149 and ['R
==15] Check.

If R215, proceed to flow 150, flow 151 and then flow 152, and if R=15, proceed to flow 1.
53 The process then proceeds to the flow 152 described above.

Here, in flows 150 and 153 (Ks t K4
z K2 , K i p K ) processing is performed, and in flow 151, (DIGIT, 0FF) processing is performed.

However, in the above flow 152, the content K of the key signal is 1.
Check whether ≦K<3, that is, whether only 1 or 2 inputs are on at the input terminal [l≦K
<3) If L1≦K<3, proceed to flow 154.

In flow 154, (DIGIT-1-)DIGIT) is processed and the flow advances to flow 155.

In flow 155, check [R210] and
In this case, proceed to flow 156 and execute ((S) set
) and proceed to f-o-1sz.

If R=10, proceed to flow 158 ((S
) reset) processing and proceeds to the flow 157 described above.

In flow 151, (DIGIT+1→DIGIT) processing is performed and the flow advances to flows 159 and 160.

In flows 159 and 160, (DIGIT, 0
FF) processing and (DIGIT-1→DIGIT) processing are performed, and the process returns to the flow 146.

In this way, after the above-described process is repeated, the ``'''0'' digit is specified in flow 160, and the
When the process advances to (DIGIT=O), a check is performed and t(
099, the process advances to flow 161.

In flow 161, CC0UNT=2] is checked,
If the count is "2", the process returns to the flow 125, and if the count is not "2", the process proceeds to the flow 162 and CC0U
NT+1→C0UNT) processing and still flow 12
Return to 5.

8 input check routines and the flow 12 at the input terminal centering on the flows 132, 134, and 142.
The input terminal Kl centered at 5 and the input check routine 2 are alternately repeated and displayed on the 1 display section 5.

Here, the tape count value displayed on the display section 5 in the tape count mode is an integer display as described above.

Therefore, when the calculation power switch 2 is turned on, whether the mode is the computer mode or the tape count mode is
This can be determined by whether or not a decimal point is displayed on the display section 5.

Next, various calculations, counts, and control processes performed by the calculation control section 36 when the operation knob 9 is operated will be explained in detail.

First, when the operation knob 9 is set to the playback side (position B in the figure), the power switch 18a is turned on and the tegit signal D7 is outputted from the key input section 39 to the input terminal 8 of the arithmetic control section 36.

The arithmetic control unit 36 stores the input content of 8 in the input terminal in the flow 130 or flow 133. For example, if the currently designated digit is 7 digits, the process proceeds to flow 142 following flow 132.

In flow 142, [K≧8] is checked, and since K=8, the process proceeds to flow 163, where it is checked (DIGIT=5).

Now, in this example, if the specified digit is not 5 digits, flow 16
The process proceeds to step 4 and executes the (DIGIT, 0FF) process, then proceeds to flow 165, executes the [zero suppression release] process, and proceeds to flow 166.

In flow 166, (DIGIT=5) is checked,
If the specified digit is not 5 digits as in this example, flow 16
Proceed to step 7.

In flow 161, the 8 manual state flag is set in the designated digit (PRE (DIG IT) set), that is, in this example where the designated digit is 7 digits, the flag (PLAY) is set and the playback state is recognized. .

Thereafter, the process proceeds to flows 168 to 186, which will be described later, and returns to the flow 123.

Thus, until the reel rotation pulse is input, an input check routine of 8 is displayed at the input end centering on the flows 132, 134, and 142 described above.

Note that the process is repeated in the input check routine of 8 at the input terminal, and when the designated digit becomes 0'', the process proceeds from flow 128 to flow 143, and a CP set ) check is performed.

In this example, P'' has been reset, so flow 144
Proceed to ((PLAY)set) and check.

In this example, where the flag (PLAY) is set in the flow 161, the process proceeds to flow 181 and then flow 188, which will be described later.

Then, the process returns to flow 125, and again flows 132 and 13
It will be displayed at the input end centered at 4,142 in the input check routine of 8.

Next, when the operation knob 9 is set to the fast forward side (direction C in the figure),
The fast forward switch 18b is turned on and the motor 1
Although 9 rotates at high speed, it has no effect on the input/output of the arithmetic control unit 360, so the input check routine of 8 continues to be displayed at the input terminal and waits for the input of reel rotation pulses.

Further, when the operation knob 9 is returned to the stop side (position A in the figure), the power switch 18a and the fast-forward switch 18b are turned off, the motor 19 is stopped, and the arithmetic control unit 36 performs the following processing.

In other words, when the specified digit is 7 digits, inputting 8 at the input end is 0"
Then, (PRE(DIGIT)s of the above f0-132
et) The process proceeds to flow 134 by checking.

This is because the flag ("PLAY)" is set in the flow 167.

In flow 134, (K≧8) is checked and since it is 0, the flow advances to flow 189.

In flow 189, (DIGIT=5) is checked,
In this example where the designated digit is not 5 digits, the process proceeds to flow 190.

In flow 190 (DIGIT=1) Cheno! and
In this example where the designated digit is not a single digit, the process proceeds to flow 191.

In flow 191, (DIGITOFF) processing is performed, and the flow advances to flow 192.

In flow 192, (PRE(DIGIT)reset
) processing, i.e. in this example flag (PLAY
) and proceed to flow 193.

In flow 193, [zero suppression release] processing is performed, and the process proceeds to flows 194 to 200, which will be described later, to flow 123.
Return to

When the power is compared, the tape count mode will be displayed and the cycle will start.
As mentioned above, the input check routine of 8 at the input end and the input check routine of 1. The input check routine of 2 is repeated alternately and the tape count value continues to be displayed.

'Next, when the operation knob 9 is turned to the rewind side (in the direction shown in the figure), the rewind switch 18c is first turned on, then the power switch 18a is turned on, and the motor 19 starts rotating at high speed.

Here, at the timing when the digit signal D7 is output from the arithmetic control section 36, the rewind switch 18c
When the power switch 18a is turned on, processing is performed in the following order.

That is, flow 132.142, '163°164
．． 165, 166, and 161 are sequentially processed, and a flag (PLAY) is set in flow 167.

In flow 168, (DIGIT=8) is checked,
If the designated digit is not 8 digits, the process advances to flow 169.

In flow 169, an error tt E is written in DISPREG.
Check whether the content "1101" indicating pp is set ((E)set)L, and if it is reset, proceed to flow 110.

In flow 110, (DIGIT=7) is checked,
If it is the designated digit, the process advances to flow 171.

In flow 1γ1, [6→DIGIT] processing is performed, and then the flow goes to flows 172, 173, and 174, respectively, and [DI
GIT, ON], [K8. 4°K2. 1 → K), (
DI GIT, 0FF) and flow 175
Proceed to.

In flow 115, (K≧8) is checked in the designated 6 digits (according to flow 1γ1), and if ≧8 (−8 in this example), the process proceeds to flow 201.

In flow 201, (PRE(DIGIT)set) processing is performed.

That is, in this example, the flag (REV) is set, the rewind state is recognized, and the flow advances to flow 176.

In flow 176, it is checked whether the flag [SET] is set, that is, whether it is recognized that the tape count value has been set ((SET)s
et)L, and if it is not recognized (reset), the process advances to flow 171.

In flow 171, it is checked whether the flag (N) is set, that is, whether it is recognized that the numeric keystroke ←r operation on the keyboard 4 has been performed ((
N) set:) L, if not recognized (reset), proceed to flow 178.

In flow 178, it is checked whether the flag [ST] is set, that is, whether it is recognized that the tape start position has been set ((ST, l
set ) L, if not recognized (reset), proceed to flow 119.

In flow 119, it is checked whether the flag (SUB) is set, that is, whether the tape running amount counting process is set as subtraction mode ((SUB
) set ) L, if not set, proceed to flow 180.

In flow 180, it is checked whether the flag [REV] is set ((REV) set) L,
If it is set, the process advances to flow 202.

In flow 202, it is checked whether a flag (NOC), which will be described later, is set ((NOC, l set
) L. If not set, proceed to flow 203; if set, proceed to flow 203a.

In flow 203, a flag (NOC) is set, and in flow 203a, the flag (NOC) is reset, and in either case, the process proceeds to flow 204.

In flow 204, the flag (SUB) is set and flow 2
Proceed to 05.

In flow 205, it is checked whether the flag (CUE:) is set, that is, whether the fast forwarding state is recognized.
) L, if set and not (reset), proceed to flow 206.

In flow 206, ((ST)set) is checked,
If it has been reset, proceed to flow 186 ((S
T) Reset) processing is performed and the process returns to F0-123.

Here, if the above flag (SUB) + < operation knob 9 is returned to the stop side, even if the reel continues to rotate due to inertia,
This is provided for the purpose of being able to reliably count the generated pulses.

That is, the flag (SUB) is set when the operating knob 9 is set to the rewind side, and reset when the operating knob 9 is set to the playback side.

Depending on the state of this flag CSUB), the arithmetic control unit 36
As described above, it is determined whether the counting process of the tape traveling distance is in the subtraction mode or the addition mode.

That is, the set state is, for example, a subtraction mode, and the reset state is, for example, an addition mode.

Next, when the rewind switch 18c and the power switch 18a are turned on at the timing when the digit signal D6 is output from the arithmetic control section 36, the flow 1
32 to flow 170 are the digit signal D7 described above.
Processing is performed using the same procedure as when the is being output.

In flow 1γ0, check (DIGIT near)
If the specified digit is not 7 digits as in this example, flow 20
Go to 1.

In flow 207, if the specified digit is 6 (DIGIT = 6), check from flow 201 to flow 12.
Processing is performed in the same procedure as described above up to step 3.

However, in flow 161, the flag (REV) is set (
In the above example, the flag (PLAY) is set) and flow 2
At 01, the flag (PLAY) is set (in the example, the flag (REV) is set).

In addition, the flag (NOC) and flag CSU are
B) is also set, and in either case, the tape count value is displayed at the input terminal in the input check routine of 8 until the reel rotation pulse is input.

Note that when the power switch 18a is turned on, the transistors 55 and 58 are turned on at the same time (during a rewind operation, the rewind switch 18c is turned on when the power switch 18a
As mentioned above, if the timing is off,
The calculation control unit 36 correctly determines whether it is playback or rewinding.
This is because the control function of the arithmetic and control unit 36 will be impaired.

However, when the second operation knob 9 is turned to the stop side again, the power switch 18a and rewind switch 18c are turned off, and when the designated digit is the 7th or 6th digit, the input of 8 becomes "0" at the input terminal, and the flow 132 .134 then flow 1
89 to 200 are processed in order.

Here, in flow 194, a check is performed (DIGIT29), and if the designated digit is not 9 digits, the flow advances to flow 195.

In flow 195, (DIGIT=8) is checked,
If the specified digit is not 8 digits, the process advances to flow 196.

In flow 196, the flag (PLAY) and the flag (R
EV) reset ((PLAY) reset.

(REV) reset:) L, as described above, the process enters the flow 19γ to 200, which will be described later, and then proceeds to flow 123 to display the tape count mode.

Thus, there are 8 input check routines at the input end and 1. and the input check routine of 2 are repeated alternately to display the tape count value.

Next, a method of counting and processing the amount of tape travel will be explained.

That is, as described above, the reed switch 34 is repeatedly turned on and off by the rotation of the take-up reel shaft 24a, and when the reed switch 34 is turned on, the key input part 39 sends a digit signal D5 to the input terminal 8 (hereinafter, the reel rotation is simply performed). A pulse (referred to as a pulse) is output and a counting process is performed.

First, when the designated digit is 5 digits, the process proceeds to flow 132°142.163.

In flow 163, (DIGIT=5) is checked,
This checks whether the digit signal D5 is input to the input terminal 8 or not.

If the designated digit is 5 digits, the process advances to flow 209.

In flow 209, as described later, it is checked whether the flag (NOC) is set ((NOC) se
t l) L, if not set (reset), proceed to flow 210.

In flow 210, it is checked whether the 5vc flag (WON) is set ((WON), which will be described later).
set ) L, if not set (reset), proceed to flow 211.

In flow 211, the flag (WON) is set [[WON
]set) L, proceed to flow 212.

In flow 212, a (PRE(DIGIT)set) process is performed, that is, a flag (REEL) is set, and it is recognized that the reed switch 34 has been turned on, and the flow proceeds to flow 213.

In flow 213, the process [4→DIGIT] is performed, and the flow advances to flow 139, where the input check routine of 8 is again entered at the input terminal and display continues.

In this way, when the reed switch 34 is turned on for the first time, only the flag (WON) and the flag (REEL) are set, and the display does not change.

Next, when the reed switch 34 is turned off, when the designated digit is 5 digits, the input of 8 at the input terminal becomes 0'', so Flow 13
Proceed to 2,134,189.

In flow 189, check [DIGIT=5],
When the designated digit is 5 digits, the process advances to flow 214.

In F0-214, (PRE (DIG I T ) r
eset) processing, that is, resets the flag CREEL), recognizes that the reed switch 34 has been turned off, and proceeds to flow 215.

In flow 215, ((NOC)set) is checked, and if it is not set (reset), flow 2
Proceed to step 16.

In flow 216, a pause count value, which will be described later, is set to "0" (0→PCOUNT), and the flow advances to flow 217.

In flow 211, a ((S) reset) process is performed, and the process proceeds to flow 213, and then proceeds to the input check routine of 8 at the input end.

Next, when the reed switch 34 is turned on again.

When the specified digit is 5 digits, the input of 8 at the input terminal becomes 11 l'', that is, 28, so the flow is 132, 142° 163.
Proceed to 209, 210, 164, 165, 166.

In flow 166, [DIGIT=5] is checked,
If the designated digit is 5 digits, the process advances to flow 218.

In flow 218, the flag (REEL) is set ((RE
EL)set) and proceeds to flow 219.

In flow 219, the flag (WON) is reset ((WO
N) reset) and proceed to flow 220.

In flow 220, it is checked whether the flag CSUB) is set ((SUB)5et), and if it is set, the flow advances to flow 221, and if it is reset, the flow advances to flow 222.

In the above flow 221, the contents of DISPREG are set to '-1'.
By doing this, the tape running amount is subtracted and counted (D
ISPREG-1-+DISPREG) and flow 22
Proceed to step 3.

On the other hand, in flow 222, the contents of DISPREG are set to "+1".
``By doing so, the process of adding and counting the tape running amount is executed (CD15PREG+1-+DISPREG) and the process proceeds to flow 223 described above.

In flow 223, a flag (STOP) is set as described later.
Check if is set ((STOP)
set ) L, flow 2 if reset
Proceed to step 24.

In flow 224, a ((CUE) set) check is performed, and if it has been reset, the process returns to flow 123 and proceeds to the input check routine of 8 at the input end.

Then, when the reed switch 34 is turned off again, the same processing as when the reed switch 34 was turned off the previous time is performed.

That is, in the flow 214, the flag (REEL) is reset and the input check routine of 8 is entered at the input terminal, and the display continues.

In this way, when the reed switch 34 is turned on and off twice (the take-up reel base 24 rotates once), the tape running amount (tape count value) will be "+1" or "-" depending on the state of the flag [5UB]. 1” will be counted.

FIG. 13 is a timing chart showing the counting process described above.

That is, FIG. 13a shows the take-up reel stand 240 rotations, and FIG. 13 shows the on-off state of the reed switch 34 as the take-up reel stand 240 turns.

In addition, Fig. 13 c & t, reed switch 34 is turned on.
An input signal 8 is shown at the input terminal synchronized with the digit signal D5, which is output from the key input unit 39 when the key is turned off.

13d and e show the state of the flag (WON) corresponding to the input signal 8 at the input terminal during playback (when the operation knob 9 is in the B position or direction C in the figure) and the tape corresponding to this flag (WON). Shows count value.

Further, Fig. 13 f2g shows the flag (WON) state and tape count value during rewinding (when the operation knob 9 is in the direction shown in the figure).

By the way, in this embodiment, as shown in FIG. 13, when the number of revolutions of the take-up reel stand 240 is N'', the tape running amount is corrected so that the tape count value becomes ttH'' both during playback and during rewinding. are being counted.

The method of correction will be described in detail below with reference to the timing chart of the counting process shown in FIG.

That is, the figure a shows the rotational speed of the take-up reel stand 24, and the figure shows the on-off state of the reed switch 340.

Further, C in the figure shows the flag (SUB), flag (WON), flag (NOC) and tape count state in the playback state.

Now, if you frequently repeat play-stop-play-stop,
The operation knob 9 may not be locked at the stop position and may be pushed all the way to the rewind side.

For example, a case will be described in which the above operation is performed at position 1 shown in FIG. 14C during reproduction.

In other words, when the flag (SUB) and flag (NOC) are reset and the flag (WON) is set and the tape count value is N'' (position 1 in the figure), if you rewind from playback, the specified digit will be 6 digits. When the flow is 132゜1
42, then flows 164-1γ0, and then flows 207, 208, 201, 176-180, 202-
Processing is performed in the order of 206.

At this time, the flag (REV) is set in flow 167, and the flag (REV) is set in flow 20.
1 sets the flag (PLAY), flow 203 sets the flag (NO
C) and the flag (SUB) are set in flow 204.

Next, when the reed switch 34 is turned on, when the designated digit is 5 digits, the flow 132, 142, 163, 209, 212,
Processing is performed in the order of 213.

Here, the flag (REEL) is only set in flow 212, and no counting process is performed even though the flag (WON) is set.

Therefore, the tape count value remains (t N 11).

Next, when the reed switch 34 is turned off, processing is performed in the order of flows 132, 134, 189, and 214 when the designated digit is 5 digits.

In flow 214, (PRE(DIGIT)reset
) processing, reset the flag (REEL), and proceed to flow 215.

In flow 215, a C(NOC) set ) check is performed, and if the flag (NOC) is set, the flow advances to flow 225.

In flow 225, ((WON)set) is performed, and if the flag (WON) is set, proceed to flow 22 (l).

In flow 226, the flag (WON) is reset ((WO
N) reset) to proceed to flow 216, and the following processes are performed in the order of flows 216, 217, and 213.

The flag (SUB) flag (WO
N), flag (NOC) and tape count status are shown in FIG. 14d.

Now, when the operating knob 9 is set to the stop side at the J position shown in FIG. 14 d, when the designated digit is 7 digits (or 6 digits),
Flunia-132, 134 and more flows 189-196
Processing is performed in this order.

In flow 196, the flag CPLAY) and the flag (
REV) reset ((PLAY) reset.

(REV) reset) and proceeds to flows 197 to 200, which will be described later, in order, and proceeds to the cycle where the tape count mode is displayed.

Then, when the operation knob 9 is set to the playback side, when the designated digit is 7 digits, the flow is 132°142, and the flow is 163 to 1γ9.
Processing is performed in this order.

At this time, the flag (PLAY, l) is set in flow 16γ.

In the flow 129 described above, C(SUB) set ) is checked, and if the flag ('5UB) is set, the flow advances to flow 227.

In flow 221, it is checked ((NOC)set) whether the flag (NOC) is set, and if it is set, the flow advances to flow 227.

In flow 227, the flag (NOC) is reset C(N
OC) reset) and proceeds to flow 180.

70-180 Perform a check ((REV)set), and if the flag CREV) is not set, proceed to flow 181.

In flow 181, the flag (SUB) is reset, and the following processes are performed in the order of flows 182 to 186.

Next, when the reed switch 34 is turned on in the above state,
When the specified digit is 5 digits, flow 132゜142.163,2
Processing is performed in the order of 09, 210, 211, and 212.

At this time, a 7 lag (WON) is set in flow 211, and a flag CREEL) is set in flow 212.

Then, as described above, when the reed switch 34 is turned on next time, the flag (WON) is reset and the tape count value is increased by "+1".

The flag (SUB) and flag (
WON"], flag (NOC) and tape count status are shown in FIG. 14e.

Next, when the operating knob 9 is set to the rewind side at the position shown in FIG. 14e, the flag (PL
AY"l, flag (REV), flag [NOC], and flag (SUB) are set.

Then, when the reed switch 34 is turned off, the same processing as when the reed switch 34 is turned off for the first time in the rewinding operation is performed, and the flags CRE\, L] and CWON] are reset.

Next, when the reed switch 34 is turned on, the same processing as when the reed switch 340 is turned on for the first time in the rewinding operation is performed, and the flag (REEL) is set.

Now, when the reed switch 34 is turned off again, when the designated digit is 5 digits, the processing is performed in order of flows 132, 134, 189, and 214.

In flow 214, (PRE(DIG IT) re
set ) processing, reset the flag (REEL), and proceed to flow 215.

In step P-215, ((NOCJset, l check is performed, and if the flag (NOC) is not set, the process proceeds to flow 225.

In flow 225, (CWON)set) is checked, and if the 7 lag (WON) has been reset, the flow advances to flow 229.

In flow 229, the flag (NOC) is reset ((N
OC) reset) and then flow 216,
Processing is performed in the order of 217.

Thereafter, the setting and resetting of the flag (WON) is repeated by repeating the ON operation of the reed switch 340, and the subtraction counting process is executed according to the condition of the flag (WON) (when it is reset).

The flag (SUB), flag (WON), flag [NOC) and tape count status in the above-described rewinding operation are shown in FIG. 14f.

Next, the position indicated by p in Fig. 14 fK (flag (SUB
) is set, flag (REEL) (WON) (NOC)
When the rewinding operation is stopped and the playback operation is performed again (reset), when the designated digit is 7 digits, processing is performed in the order of flows 132, 142 and flows 163 to 179.

At this time, a flag (PLAY) is set in flow 16γ.

In the flow 119 described above, ([SUB''] set) is checked, and if the flag (SUB) is set, the flow advances to flow 227.

In flow 227, ((NOC)set) is checked, and if the flag (NOC) has been reset, the flow advances to flow 228a.

In flow 228a, the flag [N0c] is set ((NO
C) set ) L, proceed to flow 180.

In step 0-180, ((REV) set) is checked, and if the flag CREV) is not set, the flow advances to flow 181 and the flag (SUB) is reset.

Next, when the reed switch 34 is turned on, when the designated digit is 5 digits, the flow 132, 142° 163, 209, 212
Processing is performed in this order.

In this flow 212, a flag (REEL) is set.

Next, when the reed switch 34 is turned off, the flow will be 132.134.189°214.215 when the designated digit is 5 digits.
, 225, 229, 216°, 217, and 213 are performed in this order, and the flag (REEL) is reset in flow 214, and the flag (NOC) is reset in flow 229.

Thereafter, the setting and resetting of the flag (WON) is repeated by repeating the ON operation of the reed switch 340, and the addition counting process is executed according to the condition of the flag (WON) (when it is reset).

The flag (SUB) and flag (
The WON'1 flag (NOC) and tape count status are shown in FIG. 14g.

As explained above, in this embodiment, the state changes as soon as the status flag (SUB) for determining whether subtraction counting or addition counting is changed from set to reset or from reset to set (from set to reset or reset). A flag (NOC) is set (set from ), and while this flag (NOC) is set, the flag (WON) is
Even if the tape is reset, the counting process is not performed, thereby correcting the discrepancy in the tape count value during playback and winding in the conventional counting process described above.

That is, when the number of rotations of the take-up reel stand 24 is N'', the tape count value is controlled to be "N" during both playback and rewinding.

Note that the flag (NOC) is reset by turning off the reed switch 34 while the flag (WON) is being reset.

Next, a method of setting tape count values and the like using key operations will be explained.

That is, in case of tape count mode, number key garden →
19 The tape count value, playback start position, stop position, etc. can be set using the ``R'' key 4a, the ``S'' key 4b, the ``ST'' key 4c, the ``5TOP'' key 4d, etc.

For example, now the operation knob 9 is on the stop side and the flow 1
When a key is pressed at the timing of the manual check routine of 1°K2 at the input end centered on 52, 1. The input contents of step 2 are stored in the arithmetic control unit 36, and the process proceeds to flow 152.

In flow 152, [1≦K<3] is checked, and l≦
If K<3, proceed to flow 230.

In flow 230, it is checked whether the display cycle in the input check routine of 1. and 2 has been repeated twice at the input terminal from the specified digit ゛9'' to tt Opp (COU
NT22], and if the count is "2", flow, 23
Go to 1.

In flow 231, perform (DIGIT, OFF'lFF), then in flow 232 perform [zero suppression release], and proceed to flow 233.

In flow 233, it is checked whether the flag (AFT) is set, that is, whether it is recognized that the operation knob 9 has just been set to the stop side ((AFT)
j″) set ).

If the flag ['AFT) is not set, the process advances to flow 234.

In flow 234, it is checked whether the ttR'' key 4a has been pressed (ttRpp key), and if it has not been pressed, the flow advances to flow 235.

In flow 235, it is checked (Eset) whether an error is displayed, and if no error is displayed, the process advances to flow 236.

In flow 236, 1. Then, it is determined which key has been pressed based on the input contents of step 2 and the contents of the specified digit (tegit signal) (key selection).

Note that if the count is not "2", the process proceeds to flow 406, the count number is cleared [O→C0UNT], and the process proceeds to the flow 164, where 1. The input check routine No. 2 and the input check routine No. 3 at the input end are alternately repeated.

Then, when the key is released, ■≦K<3 is no longer satisfied, so the flow advances from flow 152 to flow 154, and 1. The input check routine of 2 and the input check routine of 8 at the input end are alternately repeated.

In the flow 162, the count increases by 1", and when it reaches "2", the content of the next key operation is accepted.

First, the setting of the tape count value will be explained.

For example, assume that recording is once stopped at a tape count value of "50" and the calculation power switch 2 is turned off.

In this state, if you want to record again, for example, instead of a memo, you can set the tape count value 50'' and record by turning on the calculation power switch 2 and performing the following operation.

In other words, if you press the number key → yo, flow 2 will appear as described above.
[Key selection] processing is performed in step 36, and the process advances to flow 237.

In flow 231, it is checked whether the flag (SET) is set, that is, whether it is recognized that the tape count value has been set ((SET)s
et), and if it is not recognized (reset), the process advances to flow 238.

In flow 238, it is checked ((N) set) whether the flag (N) is set, that is, whether the pressing of the numeric key is recognized.
At this point, the flag [N] has not been set yet, so in this case, the process advances to flow 239.

In flow 239, process [0→DISPREG], that is, clear the contents of DI 5PREG, and then proceed to flow 240.
Proceed to.

In flow 240, process (N-+DI 5PREG), that is, store the numerical value "5" in DISPREG and proceed to flow 2.
Proceed to step 41.

In flow 241, the flag (N) is set ((N) se
t) Then proceed to the display cycle and the numerical value ``5'' will be displayed.

Next, when you press the number key H, the above flow 236.237
.

Processing is performed in the order of 238.

In flow 238, a ((N) set) check is performed, and since the flag [N] is set at this time, flow 239 is skipped and the process proceeds to flow 240.

Next, proceed to flow 241, and the numerical value tt 50 n is D.
The value is stored in ISPREG and displayed at the cycle ゛'5
0” is displayed.

Next, ((S) When you press the py child key b, the above flow 23
5, the process proceeds to flow 242.

In flow 242, a [(N) reset) process is performed to reset the flag (N), and the flow advances to flow 243.

In flow 243, ([CUE) set) is checked, and if the flag CCUE) is not set, the flow advances to flow 244.

In flow 244, it is checked whether the flag (STOP) is set, that is, whether it is recognized that the stop position has been set ((STOP) se
t) and is not recognized (reset), the process advances to flow 245.

In step 0-245, the ((SET) 5et) process is performed to set the flag (SET).

That is, the calculation control unit 36 recognizes that the tape count value has been set.

In addition, when the cycle displayed above is the second round, a check ((SET''') set) is performed in flow 23γ, and the flag [
SET] is set, the process advances to flow 237a.

In this flow 231a, the tape count setting value is TREG.
K memorized (DI 5PREG, +TREG).

By the way, if you notice an error in setting the tape count value after pressing the "S9j key 4b, you can correct the tape count setting value to the correct value by repeating the above operation."

In other words, perform the correct number key operation again.
``S'' key 4b is sufficient.

This is because the flag [N] that was set by the first numeric key operation (flow 241) is reset (flow 242) by the next operation of the tS'' key 4b.

In other words, if you operate the numeric keys again, flow 2
This is because the processing is performed in the order of 38, 239, and 240, clearing the erroneous numerical values, and entering the correct numerical values.

Also, when there is no need to set the tape count value,
``If you press key 4b by mistake, if you continue the operation, the important tape count value will be lost.

At this time, by pressing the tt R95 key 4a, the flag (SET) can be reset to protect the tape count value.

That is, in flow 234, ((tRj9 key) is checked, and if (tR11 key 4a) is pressed, the process proceeds to flow 246.

In flow 246, (E reset) processing is performed, and the flow advances to flow 247.

In flow 247, ((SET) set) is checked, and if the flag (SET) is set, the flow advances to flow 248.

In flow 248, flag [N] and flag (SET)
is reset and the process proceeds to flow 122.

Therefore, in flow 122, (TREG-DISPREG
) By performing the process, the tape count value at the time the "S" key 4b was pressed will be displayed.

If you realize that you have made a mistake in setting the tape count value after pressing a number key, you can correct the tape count setting value by pressing the clear key 4e, operating the correct number key again, and then pressing the S'' key 4b. can.

That is, when the clear key 4e is pressed, the process advances to flow 407, where ((N) set) is checked, and the flag [N] is checked.
If it is set, the process advances to flow 408.

In flow 408, the process [0→DISPREG] is performed to clear the erroneous numerical value.

This is because when the correct numeric key operation is performed again, the processing is performed in the order of flows 238 and 240, and the correct numeric value is set.

Next, setting of the stop position will be explained.

That is, setting of the stop position during playback, fast forwarding, and rewinding is performed by pressing the '5TOP' key 4d.

For example, if the ``5TOP'' key 4d is pressed after pressing any numeric key to set a number as described above, the process proceeds from flow 236 to flow 249.

In flow 249, ((SET) set) is checked, and if the flag CSET) is not set, the process proceeds to flow 250; if it is set, ((SET) reset) is performed in flow 249a.

(WON)reset, DI 5PREG-1-TR
EG) After performing the processing, the process proceeds to flow 250.

In this flow 250, the flag (N) and the flag [SET] are reset, and the flow advances to flow 251.

In flow 251, the flag (ST) is set [[ST]s
et) and the process proceeds to flow 252.

In flow 252, a check is made to see if the 'ST' key 4c is present.If the '5TOP' key 4d is inserted, the flow advances to flow 253.

In flow 253, ((CUE) set) is checked, and if the flag (CUE) has been reset, the flow advances to flow 254.

In flow 254, a comparison is made between the value of DISPREG and the value of TREG (DISPREG<TREG),
If the value of DI 5PREG is smaller than the TREGO value, proceed to flow 255 and set the flag (BACK) C (BACK) set)L.Recognizing that this is the setting of the stop position during rewinding, proceed to flow 256. Proceed to.

On the other hand, if the DISPREG value is thicker than or equal to the TREGO value, the process advances to flow 251 and the flag (BACK
) is reset ((BACK)reset) and the process proceeds to flow 258.

In flow 258, a check is performed (DISPREG 2 TREG), and if the value of DISPREG is the same as the TREGO value, the flow advances to flow 259.

In flow 259, the flag (STO) is set ((STO
) set ) L It is recognized that the start position and the stop position are equal, and the process proceeds to the above flow 256.

On the other hand, if the value of DISPREG is not equal to the TREGO value, proceed to flow 260 and reset the flag [STO] ((STO) reset) L. Recognize that the start position and stop position are different (start position - stop position). The process then proceeds to flow 256 above.

In flow 256, the memory contents indicating the stop position of DISPREG are transferred to 5TOPREG (DISPREG), which will be described later.
-+5TOPREG)L, 7th digit of DISPREG'
1110" memorized (jset) L, flag (STOP)
(STOP) set) to recognize that the stop position has been set.

The program then proceeds to flow 123 and enters the display cycle of the tape count mode, where the set value of the stop position and a symbol indicating the stop position, such as a hook 1'', are displayed.

Note that 5TOPREG is the 5 digit (
This is a register with 1 code and 4-digit grid setting value.

Next, setting of the playback start position will be explained.

That is, the start position during reproduction is set by pressing the "ST" key 4c.

For example, as mentioned above, if you press any number key to set the number and then press the 'ST' key 4c, the screen will change to 0-236°24.
Processing is performed in the order of 9.250.251, and the above flow 2
In step 51, a flag (ST) is set, and the process proceeds to flow 252.

In flow 252, ("ST" key) check is performed, and if "ST" key 4c is pressed, flow 26
Go to 1.

In flow 261, a check is performed (DI 5PREG<TREG), and if the DISPREG value is smaller than the value of TREG, the process proceeds to flow 262, and 9 of DISPREG is checked.
Store '1101' in the digit (E set) to indicate an error, and perform processing (MS, ON) to prevent the motor 19 from rotating even if the operation knob 9 is operated without noticing the error. .

In this case, the reason why it is considered an error is because it means that if the operation knob 9 is set to the playback side, it is impossible to playback from the start position, which suggests that rewinding is necessary.

On the other hand, if the value of DISPREG is smaller than the value of TREG, the process advances to flow 263 (DISPREG=TRE
G) Check.

If the value of DISPREG is equal to the value of TREG, the process advances to flow 264 ((STOP ) set and performs an I check.

If the flag (STOP) is set, proceed to flow 265, set the flag (STO), and proceed to flow 2.
Proceed to 66.

If the flag (STOP) has been reset, the flow advances to flow 265a, the flag [STO] is reset, and the flow advances to flow 266 described above.

In flow 266, the flag (NCUE) is set ((NC
UE)set)L, upon playback, it is recognized that the tape count value stored in TREG and the playback start position are equal, and the process proceeds to flow 261.

Further, if the value of DISPREG is larger than TREG in the flow 263, the flow advances to flow 266a, the flag (NCUE) is reset, and the flow advances to flow 267.

In flow 267, a ((RFC) set) check is performed, and if the flag (RFC) is not set, the flow advances to flow 268.

In flow 268, the memory contents indicating the start position of DISPREG are transferred to 5TARTREGK (DISPREG→
5TARTREG)L, "" in the 8th digit of DISPREG
1011” is stored (rset)L, the flag (CUE) is set ((CUE) set), and flow 269
Proceed to.

Here, 5TARTREG is a 5-digit register (1-digit code + 4-digit set value) in which the playback start position is stored.

In flow 269, a check ((5TOP) set) is performed, and if the flag (STOP) has been reset, the process advances to flow 132, enters the display cycle of tape count mode, and sets the playback start position and start position. For example, a key mark "" is displayed.

Note that if the stop position during playback has already been set, the flag (STOP) is set (Flow 256).
and therefore in flow 269 ( (5
TOP ) set ) check result flow 270 is proceeded to.

In flow 210, (STOPREG<5TARTREG
) is checked, and if the value of the playback start position is larger than the value of the stop position, playback is impossible, and the process proceeds to flow 262, resulting in an error [Eset].

On the other hand, if the value of the stop position is thicker than or equal to the value of the reproduction start position, the process advances to flow 271.

In flow 211 (STOPREG 25 TARTREG
) check is performed, and if the value of the stop position and the value of the playback start position are equal, the process advances to flow 2γ2 and the flag (S
TO), and if they are not equal, proceed to flow 273, reset the flag (STO), and proceed to flow 123 in either case.

Further, the order of setting the stop position and the reproduction start position may be set in any order.

That is, if the playback start position is set and then the stop position is set, flows 236, 249, 250, 251
゜252.253, and in flow 253 ((C
UE ) set ) check is performed and the flag (CU
If E) is set (flow 268), the process advances to flow 274.

In flow 274, (DISPREG<5TARTREG
) check.

This means that the playback start position has been set.
DISPREG indicates that the value of DISPREG is greater than or equal to the value of TRFG.
It is only necessary to compare the value of 5TARTREG with the value of 5TARTREG.

That is, if the value of DI 5PREG is smaller than the value of 5TARTREG, playback is impossible and flow 26
Proceed to step 2 and an error (Eset) will occur.

on the other hand. If the value of DISPREG is greater than or equal to the value of 5TARTREGO, proceed to flow 215;
PREG=STARTREG) check, DI
If the SPREGO value and the 5TARTREGO value are equal, proceed to flow 259 and set a flag (STO); if they are not equal, proceed to flow 276 and set the flag (STO).
In either case, flow 256
Proceed to.

In flow 256, similar to the above (D I S PREG→
5TOPREGl (Jset:) and Cl5TO
Proceed to the cycle where each process of P, 1set) is displayed on line L.

As explained above, in this example, ((S T 11
When the key 4c or the "S T OP" key 4d is pressed, the flag [ST] is set, and preparations are made to display the respective lock keys "", 5", so that the respective keys 5 and 5 are pressed.
It is stored in TARTREG and 5TOPREG, and is displayed at the tape count mode display cycle.

At this time, it goes without saying that a setting value indicating the playback start position or stop position is also displayed corresponding to the above display contents.

Next, the set values of the playback start position and stop position can be canceled and the error can be canceled using the ttRn key 4a.

First, when the playback start position and stop position have been set and the R'' key 4a is pressed, the above-mentioned flow 234.2 is pressed.
Processing is performed in the order of 46 and 247, and the process proceeds to flow 2γ1.

In flow 27T, a ((CUE) set) check is performed, and if the flag (CUE) is set (flow 268), the flow advances to flow 218.

In flow 278, (MF, OF, F, r re
set , [NCUE)(CUE)(STO)res
et, 5TOPREG→5TARTREG) and proceeds to flow 219.

In flow 279, check ((ST)set)
If the flag [ST] is set (flow 251), the process advances to flow 280.

In flow 280, [0→5TOPREG, Jersey
t, (BACK) (STOP': l res
etc.) and proceeds to flow 281.

In flow 281, ((NCUE)('CUE)(STO
) reset, rreset, 5TOPREG-+
5 TARTREG.

MF, 0FF) processing and proceeds to flow 248.

In flow 248, C(N)(SET)(ST)res
et , Preset 2M S , o F F )
The process is performed and the process proceeds to flow 122 to enter the display cycle.

That is, when you press the R'' key 4a, DISPREG 8
“0O00” is memorized in the digit and 7th digit.
"" is reset), 5TOPREG and 5TARTR
The memory contents of EG are cleared, flag [CUE], flag (STOP), flag (BACK), flag [STO
], flag CNCUE) and flag (ST) are reset and the set values are canceled.

The stored contents of TREG are then transferred to DISPREG (flow 122), and the tape count value is displayed.

Next, in case of an error (press the ``tR'' key 4a, perform the CE reset process in the flow 251) and reset the DI.
"toooo" is stored in the 9th digit of SPREG, and the error display and set value are cleared.

Here, only the "R" key 4a can be accepted as a key operation in the case of an error, and the error table system will not be erased in the case of other key operations.

This is done by checking (“R” key) in flow 234,
If it is not the “R” key, proceed to flow 235 (Es
etc.) and if an error is displayed, the process proceeds to flow 123 to continue displaying the error.

Next, the operation of the operating knob 9 after setting the tape count value, playback start position, and stop position will be described.

For example, if you move the operation knob 9 to perform a playback (recording) operation or rewinding operation after setting the tape count value, the ((SET)set) check is performed in the flow 176.
Flag [SET] is set (Flow 245)
If so, proceed to flow 282.

In flow 282, (CS ET ) (WON) r
eset) processing is performed, the flag (SET) and the flag [WON] are reset, and the flow advances to flow 117.

In flow 117, ((N) set) is checked and flag (N) is set (flow 241)
If so, proceed to flow 283.

In flow 283, the flag (N) is reset ((N)
reset) and proceeds to flow 284.

In flow 284, (TREG-+DISPREG) processing is performed, and the tape count value stored in TREG is
Transferred to SPREG.

When the reel rotation pulse is input, the flow 2 is applied to the tape count setting value (DISPREG).
21 or flow 222, counting processing is executed.

Next, a case in which a playback operation is performed after setting a playback start position will be described in detail.

That is, when a reproduction operation is performed, the processing proceeds in the order of flows 182 and 183.

In this flow 183, a ((CUE) set) check is performed, and if the flag (CUE:] is set (flow 268), the flow advances to flow 285.

In flow 285, a ((NCUE) set) check is performed, and if the flag (NCUE) is not set, the flow advances to flow 286.

In flow 286, (MF, ON) processing is performed and the motor 19
is rotated at high speed and the process proceeds to flow 186.

In flow 186, [[ST]rcsct] processing is performed,
Reset the flag (ST).

Then, when the reel rotation pulse is input, addition and counting processing is performed, and the processing proceeds in the order of f0-223.224.

In this flow 224, a ((CUE ) set ) check is performed, and if the flag (CUE) is set (flow 268), the flow advances to flow 287.

In flow 281, (STARTREG=DI 5PRE
G) A check is performed, and as long as the tape count value does not match the set value of the playback start position, the addition counting process is continued and a new tape count value is displayed.

When the tape count value matches the set value of the playback start position, the process advances to flow 288 ((CUE, 1
If the flag (CUE) is set (flow 268), the flow advances to flow 289.

In flow 0-289, ((STO) set) is checked, and if the flag (STO) is not set, the process proceeds to flow 290 (r reset, MF OFF, (
CUE) (STO)reset) processing is performed,
The motor 19 rotates at a constant speed, and the start position setting display (
t r jj disappears, the flag [CUE] is reset, and the process proceeds to flows 291 and 123.

In flow 291, [5TOPREG → 5TARTREG
) processing is performed and the memory contents of 5TOPREG are 5TAR.
The data is transferred to TREG, and playback starts from the set value of the playback start position.

Further, when a playback operation is performed when the set value of the playback start position is equal to the tape count value (flag (NCUE) set), the processing first proceeds in the order of flows 183 to 285.

In flow 285, a check is performed on C(NCUE)set, and if 77g(NCUE) is set, the flow advances to flow 292.

In flow 292, ((CUE)(NCUE) res
et , r reset ) processing is performed, and the flag [
CUE] and the flag (NCUE) are reset, the start position setting display (<Vj disappears, and the process advances to flow 184.

Next, processing is performed in the order of flows 185, 186 and 123, and in flow 185 the storage contents of 5TOPREG are changed to 5TA.
RTREGK is transferred, and playback starts from the set value of the playback start position.

On the other hand, if a rewind operation is performed, the process proceeds to flow 205 ((C
UE ) set ) check is performed and the flag [:C
If the UE is set (Flow 268), the process advances to Flow 262.

In flow 262 (MS ON , E set )
Processing is performed and the process proceeds to F0-293.

In flow 293, ((PLAY)set) is checked, and if the flag (PLAY'') is set (flow 167), the flow advances to flow 294.

In flow 294 (MS ON , P set,:
1 processing is performed, and the process proceeds to flow 295.

) cI-295 performs (0,5TOPREG) processing and proceeds to flow 296.

In flow 296 (J reset . CBACK )
C5TOP) reset) processing is performed, and the following processing is performed in the order of flows 290, 291, and 123.

As a result, the set value is canceled, the motor 19 stops, and the D
"1101"("E") in the 9th digit of ISPREG is 6
The digit [jtlolo''(P'') is memorized and enters the display cycle.

However, the character tt indicating an error appears in the 9th digit of the display section 5.
For example, the letter t(P, 99) is displayed in the sixth digit.

In this case, the reason for displaying the error is to indicate that it is impossible to play from the start position even if the rewinding operation is continued.

Furthermore, the character t* po99 is used to inform that the motor 19 is stopped despite the operation of the operation knob 9 (in this example, a rewind operation).

Also, this “P,’ display is set by “P” (
When R210), this is done by setting flags (S, l) in flow 137 or flow 156.

Note that when the t*P, 9' display is lit, the error can be canceled by turning the operating knob 9 to the stop side.

That is, when the operation knob 9 is returned to the stop side, the flow 1
At 98 (E reset, P reset.

MSOFF) processing is performed, and PAE'' and t'P'' are reset to turn MS OFF.

Next, a case will be described in which the operating knob 9 is operated after setting the stop position.

That is, when the operation knob 9 is moved to perform a playback (recording) operation, rewind operation, etc., in the flow 284, [TREG
-+DISPREG, perform 1 process.

Then, the tape count value (TREG contents) is DIS
Transferred to PREG and also 5TOPR in flow 185
The memory contents of EG are transferred to 5TARTREG (STOPR
EG-+5TARTREG) and then flow 186
The flag [ST] is reset ((ST) reset
t) to be done.

When the reel rotation pulse is input here, flow 221
Alternatively, a counting process is performed in flow 222 and the process proceeds to flow 223.

In flow 223, ((5TOP35et) is checked and flag [5TOP] is sent (flow 2
56) If so, proceed to flow 28γ.

In flow 287, (STARTREG=DISPREG
) and check the value of 5TARTREG, i.e. the stop position setting value () according to O-291) and DISPREG.
If the value of , that is, the tape count value matches, flow 2
Proceed to 88.

In flow 288, a ((CUE) set) check is performed, and if the flag (CUE) is not set, the flow advances to flow 297.

In flow 29γ, [[ST]reset) processing is performed, and the following flow 294゜295.296.290.2
Processing is performed in the order of 91.123.

As a result, the motor 19 stops, ttP, 99 is displayed, the set value is canceled, and the display disappears.

Also, the stop position setting value is equal to the tape count value (
When the operation knob 9 is operated when the flag [STO] is set), first, in the flow 184 or flow 184a, (
(STO) set ) check and flag (ST
O) is set, the process advances to flow 298.

In flow 298, ((ST) reset:) processing is performed, and the following flow 294.295.296.29
Processing is performed in the order of 0.291.123.

As a result, the motor 19 does not rotate (remains stopped),
p,” is displayed.

Furthermore, if the rewind operation is performed when the set value of the playback start position is greater than the tape count value (the flag [CUE] is set by flow 268), the process proceeds to flow 205, and the following flow 262.293.294°295 .29
Processing is performed in the order of 6,290,291.123.

As a result, E is displayed in the 9th and 6th digits of the display section 5, respectively.
'' and tt P, jj are displayed, and the motor 19 remains stopped.

Also. If a playback operation is performed when the set value of the stop position is smaller than the tape count value, the process advances to the flow 182 (C
BACK) set) is checked and the flag (BAC
K) is set (flow 255), the process advances to flow 262.

Below, flow 293゜294.295,296,290
, 291.123 is processed in the order of tt
Epp and P,' are displayed and the motor 19 remains stopped.

Furthermore, if the rewind operation is performed when the set value of the stop position is greater than the tape count value (the flag CBACK is reset by flow 257),
．． Processing is performed in the order of 184a.

Proceed to flow 409.

In flow 409, a ((BACK)set) check is performed, and since the flag (BACK) has been reset, the flow advances to flow 262.

Processing is then performed in the order of flows 293, 294, 295, 296, 290, 291, and 123, and as above, "E" and "P!" are displayed and the motor 19 remains stopped.

Next, a case will be described in which the operation knob 9 is operated without noticing an error during setting by key operation.

First, a check (Eset) is performed in flow 169, and in the case of an error, the flow advances to flow 299.

In flow 299, (TREG-+DISPREG) processing is performed, and the following flows 294 and 295 are performed.

296.290,291. 123, processing is performed.

As a result, the tape count value is transferred to DISPREG, and the motor 19 remains stopped.

at E yp and t(P, n are displayed.

Then, when the operation knob 9 is returned to the stop side, the flow 19
At step 8, ttE'' and 'P'' are reset and the MS is turned off.

In this embodiment, when t(P, jj is displayed, the error can be canceled by turning the operation knob 9 to the stop side, and when P, ' is not displayed, the error can be canceled as described above. This is done by pressing the "R" key 4a.

Next, canceling the setting of the playback start position after operating the operation knob 9 will be explained.

In this embodiment, as described above, playback is fast-forwarded to the playback start position, and then playback is started from the playback start position.

However, the content you want to hear may appear during fast forward playback, and in this case, by turning the operation knob 9 to the stop position and pressing the R'' key 4a, you can start playback without canceling the stop position setting. It is now possible to cancel the position.

That is, t (when Rjj child key a is pressed, the above]0-2
In step 46, (Ereset) processing is performed, and flow 241 is performed.
Proceed to.

In flow 247, ((SET) set) is checked, and if 77g [SET] is not set, the flow advances to flow 211.

In flow 0-277, ((CUE) 5et) is checked and the flag (CUE) is set (flow 26
8) If so, proceed to flow 2γ8.

70-278 (MF OFF , rreset.
NCUE) (CUE) (STO) reset
.

5TOPREG-+5TARTREG) processing and the process proceeds to flow 219.

In flow 279, ((ST, 1set) is checked and the flag (ST) is reset (flow 18).
6) If so, proceed to flow 248.

In flow 248, ((N, 1(SET)(ST) r
eset, P reset, MS OF F
) processing and proceeds to flow 122.

As a result, the memory contents of 5TOPREG are 5TARTR
It is transferred to EG and the set value of the playback start position is canceled, but the set value of the stop position is stored and protected in 5TARTREG.

Also, the """ display will disappear.

Note that when the operation knob 9 is set to the playback side, a C3TARTREG=DISPREG] check is performed in flow 281, and playback is performed up to the stop position.

Next, protection of the stop position set value after operating the operating knob 9 will be explained.

For example, there are times when you may miss something during the playback operation and want to listen to it again.

In such a case, an error occurs every time the rewind operation is performed, and it is very inconvenient to set the stop position again.

In this embodiment, when the operation knob 9 is operated after setting by key operation, the tape count value is compared with the set value to detect an error, but after the operation knob 9 is operated, the set value is protected. It has become so.

That is, if a playback operation is performed after setting the stop position and the operation knob 9 is set to the stop side once before reaching the stop position, the process (DISPREG→TREG) is performed in the flow 199, and the tape count value (contents of DISPREG) becomes TRE.
Transferred to G.

Then, when you turn the operation knob 9 to the rewind side and try to rewind to the part you missed, in flow 206 ((ST
) set) is checked, and if the flag (ST) is reset (flow 186), flow 123vc
The setting value will be protected.

At this time, a flag (NOC) and a flag (SUB) for controlling the counting process are set in flow 203 and flow 204, respectively.

Note that when checking in the above flow 206, the flag (
ST) is set, the process advances to flow 262 and an error occurs.

In this way, it is determined based on the state of the flag (ST) whether or not it is necessary to detect an error.

However, as described above, when the operating knob 9 is operated during the playback operation after setting the stop position, the flag [ST] is always reset in flow 186, so no error occurs.

Next, the flag (
AFT)K will be explained.

Generally, the take-up reel stand 24 rotates slightly due to inertia even after the operation knob 9 is set to the stop side, so the reed switch 3
If you switch to the stop side just before 4 turns on, flow 19
TR stored at 9 (CDI 5PREG-, TREG)
The contents of EG and the tape count value (the contents of DISPREG) do not match.

This means that the calculation control unit 36 recognizes the stop (flow 200).
This is because even after this, the take-up reel stand 24 rotates due to inertia, the reel rotation pulse is input, and the counting process continues according to the flag (SUB) condition.

Therefore, when a key operation is performed, it is checked ([AFT) set:) whether the club ["AFT] is set in the flow 233, and the flag [AFT
] is set (flow 200), the process advances to flow 300 and the next process is performed.

That is, in flow 300, ((AFT)reset,
DISPREG-+TREG) processing and flag (A
At the same time, the correct tape count value (contents of DI 5PREG) at the time when the rotation of the take-up reel stand 240 has completely stopped is transferred to TREG and stored therein.

Next, error display during recording operation will be explained.

The recording operation in this embodiment is possible by pressing the recording button 10 and turning the operating knob 9 to the playback side, and the control over the stop position is the same as for the playback operation.

However, if the control for the playback start position is the same as for the playback operation, motor 1 will reach the playback start position.
9 rotates at high speed (flow 286), normal recording is impossible.

Therefore, in this embodiment, if the recording button 10 is operated while the playback start position is set, the content that has already been recorded is protected as an error.

That is, when the recording button 10 is pressed, when the specified digit is 8 digits, the input of 8 at the input terminal becomes 1'' (K=8), and the flow is 132.142,163,164,165,166°1.
Processing is performed in the order of 61.

In this flow 161, (PRE (DIGIT)set
) processing, sets a flag (RFC), and proceeds to flow 168.

In flow 168, (DIGIT=8) is checked,
If the designated digit is 8 digits, the process advances to flow 301.

In F0-301, ((CUE:) set:] Chicheno is performed and the flag (CUE) is not set (
If the playback start position has not been set, the process advances to flow 123, where recording is performed as described above.

On the other hand, if the flag (CUE) is set (the playback start position is set), the above flow 30
1 to flow 262, and then flows 298 and 29.
Processing is performed in the order of 5,296°290.291.123.

As a result, "E" is displayed, and even if the operation knob 9 is set to the playback side, the same process is performed as in the case where the knob operation is performed without noticing the error during setting due to the key operation described above.

That is, the motor 19 does not rotate and remains stopped.

Next, an error when setting a playback start position after a recording operation will be explained.

Up to now, the case has been described in which the recording button 10 is operated after setting by key operations, but it is also possible to operate the recording button 10 and then performing settings by key operations.

However, since setting the playback start position causes the above-mentioned problem, an error occurs only in this case.

That is, when the playback start position is set after pressing the recording button 10, (CREC) se is executed in the flow 261.
t) A check is performed, and if the flag (REC) is set (flow 161), the process advances to flow 262 and an error occurs.

Furthermore, when the recording button 10 is pressed while the playback operation is fast-forwarding to the playback start position (the flag (CUE) is set), the following processing occurs.

That is, the ((CUE)set) check is performed in the flow 301, and if the flag (CUE) is set (flow 268), the flows 262, 293, 29
Processing is performed in the order of 4,295,296,290°291.123.

The motor 19 then stops rotating and tt E 9j:
*p, jj are displayed.

Next, a temporary stop operation using the temporary stop (decimal point) key 4q will be explained.

That is, it is possible to pause the playback by pressing the pause key 4q during the playback operation.

For example, if you press pause key 4q now, the specified digit will be 1.
When it is a digit, the input of 8 at the input end becomes 1゛1'' (K28), and the flow is 132, 142゜163.164, 165, 1
Processing is performed in the order of 66, 167, 168°, 169, 170, and 20γ.

In the above file 0-167, (PRE(DIGIT)set
) process (l Set flag (POINT).

Further, in flow 207, (DIG IT=6) is checked, and in this example where the designated digit is 1 digit, the process proceeds to flow 302.

In flow 302, ((PLAY)set) is checked, and if the flag (PLAY) is set (flow 167), the flow advances to flow 303.

In flow 303, (Pset) is checked and "P"
If it has been reset, the process advances to flow 304.

In flow 304, (P set, MS ON) processing is performed, and the flow advances to flow 123.

As a result, "P,'" is displayed and the rotation of the motor 19 is stopped.

Next, when the pause key 4q is released, when the designated digit is 1 digit, the input of 8 at the input terminal becomes 1゛0'' (K20), and the processing is performed in the order of flow 132゜134.189, 190. .

In this flow 190, (DIG, IT21) is checked, and in this example where the designated digit is one digit, flow 3
Proceed to 05.

In flow 305, (PRE(DIGIT) reset
) processing is performed, the flag (POINT) is reset, and the flow advances to flow 139, and the display of "P,'" continues.

Then, when the pause key 4q is pressed again, when the designated digit is 1 digit, the input of 8 at the input end becomes "1" (K:8), and the flow is 132, 142, 163, 164, 165゜1
66.167.168,169,170,207゜30
2. Process in the order of 303.

In the flow 167 above, (PRE(DIGIT)set
) processing and set the flag (POINT) again.

Further, in flow 303, (P set ) is checked, and if "ttp" is set (flow 304), the process advances to flow 306.

In flow 306, [Preset, MS OFF
) and proceeds to step 0-123.

As a result, the display ``P,'' disappears, the motor 19 starts rotating, and reproduction is performed.

As explained above, by repeatedly pressing the pause (decimal point) key 4q, it is possible to perform pause→playback→pause→playback...

Next, the tape end auto-stop function will be explained.

That is, in this embodiment, when the tape is rewound to the beginning or when the tape is played back to the end, it is detected that there is no rotation of the take-up reel stand 24, and the rotation of the motor 190 is stopped. ' is displayed.

For example, when rewinding or playing is performed by operating the operation knob 9.

Counting processing is performed in flow 221 or flow 222, and the process proceeds to flow 123, where the display cycle of the input check routine of 8 is repeatedly executed at the input terminal from the 9th digit to the 1st digit, and the contents of DISPREG are It is displayed on the display section 5.

Then, when the designated digit becomes "0", the process proceeds to flow 143 to check CPset), and if P'' has been reset, the process proceeds to flow 144.

In flow 144, ((PLAY)set) is checked, and if the flag (PLAY) is set, the flow advances to flow 187.

In flow 187, (PCOUNT+1-+PCOUNT
) and increments the contents of PCOUNT by '+1' and proceeds to flow 188.

In flow 188, (PCOUNT=200) is checked, and if the content of PCOUNT is '200', L.
The process then proceeds to flow 125, and the input terminal is again cycled through the input check routine of step 8.

Then, the rotation of the take-up reel stand 24 is stopped and the 8
If no new signal is input to , the contents of PCOUNT are incremented by '-)-1' in the above flow 181.

That is, if the reel rotation pulse is not input, the PCO
The content of UNT will continue to grow.

However, when the content of PCOUNT becomes "200",
Proceeding from flow 188 to flow 301, ((REV)
set ) check.

If the flag (REV) is set, that is, in the case of rewinding, the process advances to flow 308 and the flag (REV), which will be described later, is set.
``FO) is set) CCFO) set) and the process proceeds to flow 309.

On the other hand, if the flag (REV) has been reset, that is, in the case of reproduction, the flow 308 is skipped and the flow proceeds to flow 309.

In the flow 309, (MS ON. P set ) processing is performed, which causes the motor 19 to stop and (Q P, j
j is displayed.

Now, in this embodiment, it takes about 6 ms to process the input check routine for 8 at the input terminal and the routine for setting PCOUNT to "11".

The content of PCOUNT is "200", which means
This means that approximately 1.2 seconds have passed since the last reel rotation pulse was input.

Here, the time required for the take-up reel stand 24 to rotate once is normally 1.6 seconds, and as long as the take-up reel stand 24 continues to rotate, the reel rotation pulse is calculated at an interval of 0.8 seconds. The signal is input to the control unit 36.

Therefore, the fact that the content of PCOUNT becomes "200" clearly indicates that the tape has reached its end.

Note that even if a rewind operation is performed without a magnetic tape attached, the take-up reel stand 24 does not rotate, so the motor 19 stops in the same way as in the case described above, and a notification that no magnetic tape is attached is sent. I can do it.

On the other hand, if the 1-take-up reel stand 24 is rotating (not at the end of the tape), processing (0-, PCOUNT) is performed in flow 216 when the reed switch 34 is turned off, and the contents of PCOUNT are cleared. It has become.

Therefore, if the reel rotation pulses are normally input at intervals of 0.8 seconds, the contents of PCOUNT will never become '200' and the motor 19 will not stop.

In this embodiment, when the operating knob 9 is operated, a signal is inputted from the key input terminal 39 to the arithmetic control unit 36 to recognize the operation content of the operating knob 9 at the timing when the power switch 18a is turned on. There is.

This is to prevent a phenomenon in which if the timing at which the power switch 18a is turned on is delayed, the start of rotation of the motor 19 is delayed and the above-described function is activated and the motor 19 is stopped.

Next, the flag CFO' during auto end stop
The role of J will be explained.

In other words, as mentioned above, when the tape rewind operation is performed to the beginning of the tape, the tape end stop function is activated and the flag (FO) is set. When you return it to the side, DISPR
The contents of EG are cleared and the tape count value automatically becomes O''.

This is because the control described above has no meaning unless there is a reference tape count position for recording and playback, and in this embodiment, the tape count value at the beginning of the tape is set to "O" and the tape is rewound to the beginning of the tape. This is to enable the next operation of the operation knob 9 to be performed from the tape count value "0" afterward.

That is, when the operation knob 9 is set to the stop side, the flow 132
．． 134,189,190,191,192゜193.
Process in the order of 194, 195, 196 Flow 19
Proceed to step 7.

In flow 197, ((FO)set) is checked,
Flag [1'F'0'1 is set (Flow 3
08), proceed to flow 310.

In flow 310, ((FO)(WON) reset
) processing, 77g [FO] and flag (WON
) and proceed to flow 311.

In flow 311, [0→DISPREG] processing is performed,
This clears the contents of DISPREG.

Furthermore, when playing back to the end of the tape or rewinding to the beginning of the tape, if ttP, 99 is not displayed (before the contents of PCOUNT reaches "200"), the flag (FO) is Since it is not set, the tape count value will not become "0" even if the operation knob 9 is set to the stop side.

Next, mode switching by the changeover switch 3 will be explained.

That is, when the selector switch 3 is set to the computer mode side (switch 3a on, switch 3b off), when the designated digit is 9 digits, the input of 8 becomes O'' at the input terminal, and the flow 132,
134,189゜190.191.192,193,1
The processing is performed in the order of 94, and the process advances to flow 312.

In flow 312, (E reset) processing is performed, and the flow advances to flow 313.

Flow o-313 checks ((N) set), and if the flag [N] is not set, flow 3
Proceed to step 14.

In flow 314, ((SET) set) is checked, and if the flag (SET) is not set, the flow advances to flow 315.

In flow 315, ((ST) 5et) is checked, and if the flag [ST] is not set, the flow advances to flow 315.

In flow 316, (DISPREG-+TREG'l processing is performed.

This will cause the tape count value (contents of DISPREG)
is transferred to TREG, and the process proceeds from flow 311 to flow 101, which will be described later, to enter computer mode.

Then, when the selector switch 3 is set to the tape count mode side again (switch 3a off, switch 3b on), a digit signal of 8 is output to the input terminal.

is output, processes flows 112, 120, and 121 in order, sets the flag (TAPE), and returns 70-122.
Proceed to.

At 70-122, (TREG→DI 5PREG) processing is performed, whereby the tape count value (contents of TREG) is transferred to DISPREG, making it possible to continue performing tape count operations.

The mode switching described above will be explained in more detail.

That is, in this embodiment, for example, recorded content to be calculated is played during playback, and the selector switch 3 is set to the computer mode side (switch 3a on) for that content.
By setting the magnetic recording/reproducing device to computer mode (b off), the magnetic recording/reproducing device remains locked while calculation processing is in progress, no matter what knob operation is performed.

First, press the pause key 4q during playback to pause the playback, then set the selector switch 3 to the computer mode side.
As mentioned above, flows 132, 134, 189, 190
,191.192゜193.194,312,313,
314, 315° 316, 317, 101 are processed in the order of
N (flow 304) continues.

At this time, even if the operation knob 9 is operated, the switch 3
Since b is off, no key signal is output from the key input section 39 to the input terminal 8.

Therefore, the arithmetic control section 36 does not recognize the above-mentioned operation contents, and on the other hand, the MS-ON continues and the motor 19 does not rotate, so that the magnetic recording/reproducing device is in a locked state.

Next, when the changeover switch 3 is returned to the tape count mode side while the operation knob 9 is set to the playback side, the flow 112,
Processing is performed in the order of 120, 121, 122, 123,
The tape count mode is entered and the tape count value (TR
EG contents) is transferred to DISPREG (Flow 12
2) Displayed at the input terminal in the input check routine of 8.

Further, the locked state continues until the operating knob 9 is turned to the stop side.

This corresponds to (TREG, PRE(D
IGIT).

Clear all except MS] flag (PLAY:]
is not cleared, and therefore, if the specified digit is other than 7, the process is repeated in the input check routine of 8 at the input terminal, and even when the specified digit is 7, flow 1 is repeated.
This is because the processing is performed in the order of 32, 134, and 135, and as a result, the processing is repeated in the input check routine of 8 at the input terminal.

In addition, keys (numeric keys, S" key 4b; 'sT" key 4
If the selector switch 3 is set to the computer mode side during the setting by the c t"S T OP" key 4d) operation, each of the flows 313 to 315 will be set [[N]5et)
check, [CSET] set ) check and (
(ST) set) check is performed and flow 31
Skip step 6 and proceed to flow 317.

Therefore, since the (DISPREG→TREG) process is not performed, the contents of TREG, that is, the tape count value, are protected.

In the above embodiments, a case has been described in which the magnetic recording and reproducing apparatus with a computer is used. However, a computer is not necessarily required, and a magnetic recording and reproducing apparatus called a simple micro cassette tape recorder or a normal cassette tape recorder is used. It is also possible to do this in the same way.

In addition, this invention is not limited to the embodiments described above, and it goes without saying that various modifications can be made without changing the gist of the invention.

As described in detail above, according to this invention, there is provided a counting means for counting the amount of tape travel, a setting means for numerically setting the tape position using numeric keys and a setting key, and a value set by the setting means is sent to the counting means. For example, when the power is turned off after recording and then turned on in an attempt to record intermittently at a later date, the tape count value at the time the power was turned off can be set by the setting means. Therefore, the correspondence between the tape position and the tape count value can be reliably reproduced, and after recording, the recorded content can be correlated with the tape count value, which is a memo, for example. This makes it possible to quickly search for the desired position, which is convenient. It is possible to provide a magnetic recording and reproducing device whose operating efficiency is significantly improved.

[Brief explanation of drawings]

Figures 1 to 14 show an example of this invention.
Fig. 1 is a perspective view showing the overall appearance, Fig. 2 is a detailed view of the internal mechanism, Figs. 3a and b are detailed views of the pulse generating means, and Fig. 4 is a detailed view of the internal mechanism.
The figure is a circuit configuration diagram of the main part, FIG. 5 is a circuit configuration diagram of the key human power section, FIG. 6 is a diagram showing the contents of the display register in tape count mode, and FIG. 7 is a schematic configuration diagram of the display conversion section. FIG. 8 is a diagram showing the input/output contents of the display converter, FIG. 9 is a diagram showing -flJ in the zero suppression display state in tape count mode, FIGS. 10 and 11 are zero suppression flowcharts in tape count mode, 12a-j are flowcharts for explaining the control operation, FIG. 13 is a timing chart for explaining the counting process, and FIG. 14 is a timing chart for explaining the counting process in detail. 1... Housing, 4... Keyboard, 4b
...tt S n key, 5...display section,
9...Operation knob, 10...Record button, 1
9...Motor 24...Take-up reel stand, 25...Rewind reel stand, 26...
magnetic bet. 33... Magnet 34... Reed switch 36... Arithmetic control unit, 3γ...
・Drive control section, 39...Key human power section, 237,
237a...-Tape count setting value storage flow 245...Tape count value setting flow.

Claims (1)

[Scope of utility model registration request] A magnetic recording and reproducing device that records or reproduces information on a traveling magnetic tape, comprising: a counting means for counting the traveling distance of the tape; and a setting means for numerically setting the position of the tape using numeric keys and setting keys. , and control means for storing the set value by the setting means in the counting means.