JPH09320243A - Reproducing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To effectively find a cassette to be reproduced out of many recorded cassettes with built-in memory. SOLUTION: After a cassette is loaded and it is detected that a tape is existent (S1, S2), information is read out from the memory inside the loaded cassette and displayed on a monitor (S3, S4). If a user does not want to reproduce the cassette based on the displayed information, the cassette is discharged by pushing a take-out button (S5, S6). If the cassette is desired to be reproduced, a reproducing button is pressed to be unloaded and wound around a rotation drum (S7, S8). Accordingly, a wanted cassette can be easily detected without loading and unloading all of the cassettes.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a VT which uses a tape cassette for accommodating a magnetic tape and incorporating a memory.
The present invention relates to a reproducing device suitable for use in R or the like.

[0002]

2. Description of the Related Art FIG. 14 shows the appearance of a tape cassette (hereinafter referred to as a cassette) having a memory capable of storing electrical information therein. (A) shows the figure which looked at the cassette from the front, (b) has shown the figure seen from the side. 1 is a cassette, 2 is an EEP built in the cassette
A memory composed of a ROM or the like, 3 is an erroneous erasure prevention claw, and 4 is an electrical contact connected to the memory 2.

As a method of using the memory 2, a VTR is used.
In order to understand the contents recorded on the tape without playing the tape by storing the information about the contents recorded on the magnetic tape, such as the date and time when the tape was recorded and the title of the recorded contents. There are functions such as a table of contents table of contents.

FIG. 15 shows the cassette 1 shown in FIG.
When mounted on a VTR as a known rotary head type magnetic reproducing device, a loading operation for guiding a tape to a rotary drum equipped with a reproducing head at the time of reproducing and a reading process of information stored in the memory 2 in the cassette 1. 6 is a flowchart showing a procedure for performing. Step S
When the user mounts the cassette 1 on the VTR in 101, it is detected that the tape is mounted in step S102, and the loading operation is performed in step S103. When the loading operation is completed, the stored information is read from the memory 2 in step S104, the read information is displayed, and the like, and then the stop mode is set.

[0005]

However, in the above-mentioned conventional example, when the cassette is attached to the VTR, the loading operation is performed regardless of the information contents of the memory. When trying to search for a cassette in which the desired content is recorded from among the already-used cassettes, it is necessary to repeatedly perform tape loading and unloading for each cassette, which requires a lot of labor and time. However, there is a problem that efficient search work cannot be performed.

An object of the present invention is to solve the above problems, and an object thereof is to obtain a reproducing apparatus such as a VTR capable of efficiently performing a search operation for many cassettes with a built-in memory.

[0007]

According to the present invention, cassette detection means for detecting the presence / absence of mounting of a cassette containing a recording medium, and information stored in a storage means provided in the cassette when the cassette is mounted. Read-out means for reading the read-out information, display processing means for displaying the read-out information, and control for guiding the recording medium in the cassette to a predetermined reproduction position in response to a reproduction instruction given after the display processing. And a first control means for performing the operation.

[0008]

According to the present invention, when the cassette is mounted,
Information is read from the storage means provided in this cassette and displayed. When the user sees this display and instructs the reproduction with the reproduction button or the like, the recording medium in the cassette is loaded. That is, since the user sees the display of the information read from the storage means and presses the play button only when he wants to play the cassette, unnecessary loading operation is not performed, and the cassette can be searched efficiently. It can be carried out.

[0009]

FIG. 1 shows an embodiment in which the present invention is applied to a VTR. In the figure, 5 is a mechanical chassis, 1 is a cassette mounted on the mechanical chassis 5 via a cassette holder (not shown) provided in the mechanical chassis 5, 2 is a memory built in the cassette 1, 6
Is a tape, 7 is a rotary drum, 17 is a memory interface circuit for supplying power to the memory 2 and receiving information signals, 8 is a signal from the memory interface circuit 7, and controls the operation mode of the entire apparatus. A mode control microcomputer 9 for controlling the screen information, an on-screen control circuit 9 for outputting character information and the like to a video signal circuit 10 in the subsequent stage controlled by the mode control microcomputer 8, and a video signal processing circuit 11 for processing the character information and the like 11 Is a terminal for outputting a video signal.

Reference numeral 18 is a mechanical chassis control circuit for controlling the operation of the mechanical chassis 5 in response to a command from the mode control microcomputer 8, 16 is a group of operation buttons for setting the operation mode of the apparatus, and 13 is the cassette holder. Switch 12 for detecting the position of the cassette holder, 12 for removing chattering components from the signal output from the switch 13, and a cassette holder position detecting circuit for detecting whether the cassette holder is open or closed. One light receiving sensor 15a
Is a tape start and end detection circuit for detecting the start and end of the tape 6 stored in the cassette 1 mounted on the mechanical chassis 5.

FIG. 2 shows the operation button group 16 used in the first to third embodiments of the present invention. As shown in the drawing, the eject button, stop button, rewind button, and fast-forward button of the cassette 1 are shown. A button, a playback button, and a recorded content selection button are provided.

Next, the operation of the entire apparatus of FIG. 1 according to the first embodiment will be described by focusing on the operation of the mode control microcomputer 8 with reference to the flow chart of FIG. When the mode control microcomputer 8 detects in step S1 that the cassette holder has been closed (the cassette IN state) by the switch 13 via the cassette holder position detection circuit 12, step S2
Then, it is determined whether the tape 6 is loaded in the cassette holder based on the tape start and end signals input from the tape start and end detection circuit 14. When it is determined that the tape 6 is not loaded, the process directly shifts to the STOP mode.

When it is determined that the tape 6 is loaded, the memory interface circuit 17 is operated at step S3.
The information stored in the memory 2 in the cassette 1 is read via the. When the read information relates to the recording date and time and the recording title of the contents recorded on the tape 6, a message as shown in FIG. 4 is to be output from the information stored in the memory 2 in step S4. The on-screen control circuit 9 is instructed to execute the processing, whereby the character information is transmitted to the video signal processing circuit 10, and the video signal including the above message is output from the output terminal 11. Therefore, the user can confirm the list of the contents recorded in the mounted cassette 1 from the message displayed on the screen monitor as shown in FIG.

When the user confirms the recorded contents and the recorded contents being searched for are not recorded in the loaded cassette 1, the user selects the eject button provided in the operation button group 16 in FIG. 2 in step S5. Push. As a result, the operation proceeds to the cassette ejection mode of step S6, the mechanical control circuit 18 is caused to execute the cassette ejection control, the cassette holder is opened, and the ejection mode is ended.

If the recorded content being searched is in the loaded cassette 1, the user operates the operation button group 1 in step S7.
Press the play button provided in 6. This results in step S8
After the mechanical control circuit 18 is caused to perform the tape loading operation in order to shift to the reproduction mode, the reproduction mode is executed.

As described above, according to the present embodiment, when the user mounts the cassette, the contents of the memory 2 are first displayed, and when the user sees the contents, the cassette currently mounted is the cassette to be reproduced. For example, when the reproduction button is pressed, loading is performed, and when the reproduction button is not desired, the eject button is pressed to eject the cassette, so that the cassette can be searched efficiently.

FIG. 5 is a flow chart showing the operation according to the second embodiment of the present invention. In the processing from the closing of the cassette holder in steps S1 to S4 to the reading of the information stored in the memory 2 in the cassette 1, the same control as in the first embodiment of FIG. 3 is performed.
At the same time when the output of the character information read from the memory 2 from the output terminal 11 is started, the mode control microcomputer 8 resets the timer for measuring a predetermined time built in step S7a.

As a result of checking the recorded contents, the user presses the eject button in step S5 if the recorded contents being searched for are not recorded in the mounted cassette 1. As a result, the mode is changed to the cassette unload mode of step S6,
Open the cassette holder and exit the eject mode. If the recorded content being searched is in the loaded cassette, the operation button group 16 is not operated, and the process waits for the timer to finish measuring the predetermined time. When the predetermined time has elapsed, the mechanical control circuit 18 is caused to execute the tape loading operation in order to perform the tape loading in step S8, and then the reproduction mode is entered.

As described above, when the mounted cassette is a cassette to be reproduced, the reproduction is automatically performed without pressing the reproduction button, so that the search can be performed more efficiently.

FIG. 6 is a flow chart showing the operation of the third embodiment of the present invention. The same control as that of the first embodiment is performed in the processes of steps S1 to S4. When the information read from the memory 2 is related to the recording date and time and the recording title of the content recorded on the tape 6, the mode control microcomputer 8 outputs a message having a cursor A as shown in FIG. The on-screen control circuit 9 is instructed to perform Therefore, the video signal processing circuit 10 outputs the video signal including the message through the output terminal 11. The user can confirm the list of the contents recorded in the mounted cassette 1 from the message of FIG. 7 displayed on the screen monitor. When the user confirms the recorded contents and the recorded contents being searched are not recorded in the mounted cassette 1, the user presses the eject button in step S5 to shift to the cassette eject mode in step S6, and the cassette holder To exit the eject mode.

In the case where the recorded content to be searched is in the loaded cassette 1, the user operates the recorded content selection button provided in the operation button group 16 in step S7b to select the recorded content in FIG. After the cursor A of is set to the item indicating the recording content being searched, the play button is pressed in step S7. The mode control microcomputer 8 judges the recording content indicated by the cursor A, and in order to identify which part of the tape 6 the recording content is recorded on, the recording position of the recording content selected from the memory 2 in the cassette 1 again. Is read out. Next, in step S8, the mechanical control circuit 18 is caused to execute a tape loading operation, the tape is conveyed at high speed, and information indicating the recording position of the recording content read in step S9 and the time code reproduced from the tape 6 are written. Are compared, the tape 6 is run in the forward direction or the reverse direction according to the comparison result, and when the recording portion designated by the cursor A is reached, the reproduction mode is entered in step S10.

According to the present embodiment, the portion to be reproduced on the tape 6 of the cassette to be reproduced can be automatically searched, which is more convenient.

Next, fourth to sixth embodiments will be described. FIG. 8 shows the configuration of the operation button group 16 used in the fourth and fifth embodiments, in which a recording search mode button is added to the operation button group 16 of FIG.

Next, the operation of the fourth embodiment will be described with a focus on the operation of the mode control microcomputer 8 with reference to the flowchart of FIG. When the user wants to search for a cassette in which desired contents are recorded from many recorded cassettes, the user operates the recording search mode button provided in the operation button group 16 in FIG. To set the record search mode. Next, in step S21, the switch 1
3 closed the cassette holder (cassette I
When the N state) is detected via the tape start / end detection circuit 14, it is determined in step S22 whether the tape 6 is loaded in the cassette holder. When it is determined that the tape 6 is not loaded, the process directly shifts to the STOP mode. When it is determined that the tape 6 is loaded, the memory interface circuit 1 is determined in step S23.
It is determined whether or not the memory 2 is mounted on the cassette 1 mounted via 7. If it is installed, it is determined in step S24 whether the stored information is useful for searching the recording portion.

Whether the memory 2 is not installed or the memory 2
If the stored information of No. 1 is unnecessary for the recording section search, the mechanical control circuit 18 is instructed to perform the loading operation, and the process proceeds to the STOP mode of step S25.

If the information stored in the memory 2 is useful for searching the recording portion, the information stored in the memory 2 is read out via the memory interface circuit 17 in step S26. Next, in step S27, when the read information relates to the recording date and time and the recording title of the contents recorded on the tape 6, the information stored in the memory 2 is used as shown in FIG.
The on-screen control circuit 9 is instructed to perform the process of outputting the message as shown in FIG. This allows
Character information is transmitted to the video signal processing circuit 10, and a video signal including the above message is output from the output terminal 11. Therefore, the user can confirm the list of the contents recorded in the mounted cassette 1 from the message of FIG. 4 displayed on the screen monitor.

When the recording search mode is not set by the operation button group 16 when the cassette is mounted, the mechanical control circuit 18 is instructed to perform the loading operation in step S28, and the process shifts to the STOP mode in step S25. If the recording search mode is set, hold the state in which the list of contents recorded in the cassette 1 is displayed, and check whether the recording part being searched is recorded in the cassette 1 mounted by the user. After the confirmation is finished, it waits until any of the buttons provided in the operation button group 16 is operated.

As a result of checking the recorded contents, the user presses the eject button in step S29 if the recorded contents being searched for are not recorded in the mounted cassette 1. As a result, in step S30, the cassette unloading mode is entered, the mechanical control circuit 18 executes the cassette unloading control, the cassette holder is opened, and the unloading mode ends. If the recorded content being searched is in the loaded cassette 1, the play button is pressed in step S31. As a result, after the tape loading operation is executed in step S32, the reproduction mode is executed.

According to the present embodiment, by pressing the recording / retrieval mode button, it is possible to retrieve the cassette to be reproduced, and when a cassette having no built-in memory is loaded, the loading can be performed as it is. it can. In addition, loading can be performed even when there is no information available for searching in the memory.

FIG. 10 is a flow chart showing the operation according to the fifth embodiment of the present invention, and steps S21 to S21.
The processing by 26 is performed in the same manner as in the fourth embodiment of FIG. In this embodiment, a message having a cursor A as shown in FIG. 7 is displayed based on the information read from the memory 2 in step S27.

Next, after steps S28 to S30 have been performed in the same manner as described above, if the recorded content being searched is in the loaded cassette 1, the recorded content selection button provided in the operation button group 16 is operated. Then, after the cursor A for selecting the recorded contents in FIG. 7 is set to the item indicating the searched recorded contents, the play button is pressed in step S31. The mode control microcomputer 8 judges the recorded content indicated by the cursor A, and again in order to identify which part of the tape 6 the recorded content is recorded on, the recording position of the recorded content selected from the memory 2 in the cassette 1 again. Is read out. Next, after the tape loading operation is executed in step S32, the information indicating the recording position of the recorded content read in step S33 is compared with the time code reproduced from the tape 6, and the tape 6 is read according to the comparison result. Is moved in the forward or reverse direction, and when the recording portion designated by the cursor A is reached, the mode is changed to the reproduction mode in step S34.

According to the present embodiment, when the cassette to be reproduced is searched, it is possible to further automatically search the portion to be reproduced on the tape of the cassette.

Next, a method of determining whether or not the memory 2 is mounted in the mounted cassette 1 which is executed by the mode control microcomputer 8 in step S23 will be described. FIG. 11 shows various electric circuit boards 19 built in the cassette 1.
Is shown. 20 are terminals respectively connected to the electrical contacts 4 provided on the cassette 1 shown in FIG. The electric circuit board 19 built in the cassette 1 is roughly classified into three types. That is, as shown in FIG. 11B, the first electric circuit board 1 in which the terminals 20 are in the open state, respectively.
9B, a second electric circuit board 19A having a resistor 21 connected to one of the terminals 20 as shown in FIG. 9A, and a terminal 20 as shown in FIG. There is a third electric circuit board 19C to which the memory 2 is connected.

FIG. 12 is a diagram showing a structure for identifying which of the electric circuit boards shown in the above first to third electric circuit boards the built-in cassette 1 corresponds to. Reference numeral 17 is a memory interface circuit shown in FIG. 1, 8 is a mode control microcomputer, 23 is an electric signal contact connected to the terminal 20 when the cassette is mounted, and the terminal 2
Corresponding numbers are connected to 0.

The fourth terminal of the electric signal contact piece 23 is connected to the GND line inside the memory interface circuit 17. The third terminal is connected to the power supply VDD via the resistor R2 (24) and is also connected to the A / D converter 25 and the selection switch 26. The second terminal has a resistor R3
Connected to the power supply VDD via (27) and A / D
It is connected to the converter 28 and the selection switch 29. The first terminal is connected to the power supply VDD via the resistor R4 (30), connected to the A / D converter 31, the selection switch 32, and further connected to the power supply VDD by the switch 33.

The selection switches 26, 29 and 32 are the third
No. 1 to No. 1 signals are input / output to / from the mode control microcomputer 8 without passing through the A / D converters 25, 28 and 31.
It can be input and output to. Reference numeral 34 designates the switches 26, 29, which are controlled by the mode control microcomputer 8.
These are signal lines for controlling 32 and 33, and when the level is low, the switches 26, 29 and 32 select the A / D converter output,
The switch 33 is configured to be opened.

FIG. 13 shows the cassette 1 in which the mode control microcomputer 8 controls the memory interface circuit 17 and is mounted.
6 is a flowchart showing an operation of determining the type of the circuit board 19 built in the HDD. When the cassette 1 is mounted and the electric signal connection piece 23 is connected to the terminal 20 of the electric circuit board 19 in the cassette, a high level signal is output to the signal line 34 in step S41, and the switches 26, 29 and 32 are turned on. The D / D conversion output side is set and the switch 33 is opened.
Next, in step S42, the outputs of the A / D converters 25, 28, 31 are read via the switches 26, 29, 32 to detect the first to third voltage values of the electric signal contact piece 23.

Next, the voltage value detected in step S43 is classified as to which of the high level, the low level, or the intermediate level indicating between the high level and the low level, the level is detected. If it is determined that either of the third terminals has the intermediate level voltage value, step S4
Electrical circuit board 1 built in the cassette 1 mounted in 4.
9 is recognized as the second electric circuit board (ID board 1) 19A in which the resistor R1 of FIG. 11 is incorporated. In this case, the detected intermediate level voltage value can be expressed by the following equation. Detection voltage value = power supply voltage VDD × R1 / R1 + R3

If none of the first to third terminals shows the intermediate level voltage value, the signal line 34 is set to the low level in step S45, and the switches 26, 29,
32 is A / D for the signal input / output from the electric signal connection piece 23.
It is set so as to be connected to the mode control microcomputer 8 without passing through the converter, the switch 33 is closed, and the power supply VDD is supplied to the first terminal. In step S46, the synchronous clock signal is output to the third terminal and the data signal is output to the second terminal to perform serial communication with the electric circuit board in the cassette 1. If the electric circuit board built in the mounted cassette 1 has the memory 2 mounted, as a result of the serial communication, the low-level response data indicating the response signal from the memory 2 is the second terminal in step S47. Is output to
The cassette 1 mounted in step S48 is the third cassette shown in FIG.
It is determined to be the electric circuit board 19C. When the low level response signal is not output to the second terminal, it is determined that the cassette 1 mounted in step S49 is the first electric circuit board (ID board 2) 19B in FIG.

[0040]

As described above, according to the present invention,
The user can check the information read from the storage means provided in the cassette on the monitor, judge whether to reproduce the cassette, and press the reproduction button only when he or she wants to reproduce it. Unnecessary loading of cassettes that are not desired is not performed, so that the cassette search operation can be performed easily and efficiently in a short time.

[Brief description of drawings]

FIG. 1 is a configuration diagram showing an embodiment of the present invention.

FIG. 2 is a configuration diagram showing an operation button group used in the first to third embodiments of the present invention.

FIG. 3 is a flowchart showing an operation of the first embodiment.

FIG. 4 is a configuration diagram showing a display screen according to the first, second, and third embodiments.

FIG. 5 is a flowchart showing an operation of the second embodiment.

FIG. 6 is a flowchart showing an operation of the third embodiment.

FIG. 7 is a configuration diagram showing a display screen according to third and fifth embodiments.

FIG. 8 is a configuration diagram showing an operation button group used in the fourth and fifth embodiments.

FIG. 9 is a flowchart illustrating the operation of the fourth embodiment.

FIG. 10 is a flowchart showing the operation of the fifth embodiment.

FIG. 11 is a configuration diagram showing types of electric circuit boards in the cassette.

FIG. 12 is a configuration diagram of a circuit that determines an electric circuit board.

FIG. 13 is a flowchart showing an operation of discriminating an electric circuit board.

14A and 14B are a front view and a side view of a cassette containing a memory.

FIG. 15 is a VT using a memory including a conventional memory.
9 is a flowchart showing an operation during reproduction of R.

[Explanation of symbols]

 1 cassette 2 memory 6 tape 7 rotating drum 8 mode control microcomputer 9 on-screen control circuit 10 video signal processing circuit 12 cassette holder position detection circuit 16 operation button group 17 memory interface circuit 18 mechanical control circuit 20 terminal 23 electric signal contact piece

Claims (9)

[Claims] 1. A cassette detecting means for detecting whether or not a cassette accommodating a recording medium is attached, a reading means for reading out information from a storage means provided in the cassette when the cassette is attached, and the reading means. Display processing means for performing processing for displaying the displayed information, and first control means for performing control for guiding the recording medium in the cassette to a predetermined reproduction position in response to a reproduction instruction given after the display processing. Playback device. 2. The reproducing apparatus according to claim 1, wherein the first control means performs the guidance control when a predetermined time has elapsed after the display processing. 3. The display processing means performs processing for displaying a cursor together with the information, and further includes an instruction means for allowing a user to instruct a recording medium position included in the information with the cursor, the first control means. 2. The reproducing apparatus according to claim 1, further comprising search means for searching the position indicated by the cursor on the recording medium after the recording medium is guided to the predetermined reproducing position by the. 4. A detection means for detecting whether or not the storage means is provided in the cassette, and a control for guiding the recording medium to the predetermined reproduction position when the storage means is not provided. The reproducing apparatus according to claim 1, further comprising a second control unit. 5. A determination means for determining whether or not the information read from the storage means is useful for each processing of the display processing means and the first control means, and when the information is not useful, the recording medium is set to the predetermined size. 2. The reproducing apparatus according to claim 1, further comprising second control means for performing control for guiding to the reproducing position. 6. A selection means for selecting whether or not to perform control by the first control means, and a control for guiding the recording medium to the predetermined reproduction position when not controlling is selected. 2. The reproducing apparatus according to claim 1, further comprising two control means. 7. The reproducing apparatus according to claim 1, further comprising a take-out means for taking out the cassette in response to an instruction to take out the cassette after the display processing. 8. The extracting means, after the display processing,
8. The reproducing apparatus according to claim 7, wherein the cassette is taken out when the take-out instruction is given within a predetermined time. 9. The reproducing apparatus according to claim 3, wherein the instructing means operates when an instruction is given by the cursor within a predetermined time after the display processing.