JPH0726761Y2 - Data storage - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a data storage device capable of storing past and future data such as an anniversary or a scheduled date.

[Conventional technology]

Conventionally, as an electronic timepiece capable of storing date data, one having a scheduler function or a date alarm function is known. When the current date (or time) matches the above date data, these are notified to the user by an alarm sound or the like.

[Problems of conventional technology]

In the above conventional electronic timepiece, the current date is notified when it matches the stored date data, and when this date data is future or past data,
It was not possible to display the number of years elapsed and the number of days elapsed at the same time as the number of remaining days. Therefore, when future data becomes past data, it is retained as an anniversary and it is not possible to easily know the number of remaining days until the next month, the elapsed years, and the elapsed days. It was inconvenient to set an anniversary date after the scheduled date.

[Purpose of device]

The present invention was created in view of the above-mentioned conventional problems, and provides a data storage device capable of easily knowing the number of remaining days from the present of stored date data as well as the number of years and days elapsed. The purpose is to

[Key points of device]

In order to achieve the above object, the present invention displays the remaining days when the date data is future data, and displays the elapsed years and / or the elapsed days at the same time as the remaining days when the date data is past data. That is the point.

〔Example〕

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is an external view showing an electronic wrist watch according to an embodiment of the present invention. In the figure, the timepiece main body 1 includes a display unit 2 such as a liquid crystal display device for performing various displays, and key switches S _{1 to} S ₄ for performing various operations. On the display unit 2, specifically, a matrix display or a segment display is performed as shown in an enlarged view in FIG.

FIG. 3 is a block diagram showing the internal circuit of this embodiment. In the figure, ROM3 is a microprogram that contains programs and data for controlling the entire system. The ROM address control unit 4 includes an output N _A that specifies the next address of the ROM 3 that defines the flow of the program, an output of the arithmetic circuit 7, and a key input unit 11 that will be described later.
The output from the frequency dividing circuit 12 is input. RAM5 is RO
Address data output of M3 S _U , S _L and F _U , The data of the address designated by F _L is output, and each data is the arithmetic circuit 7.
This is a memory for processing and inputting and storing the processed result. Instruction decoder 6 decodes the instruction output I _NS of ROM 3, a block sending a control signal to each block. The arithmetic circuit 7 is
Arithmetic and logical operation is performed with S and F as input, and the output is RO
Write to the address in RAM5 specified by the outputs F _U and F _L of M3. The latch circuit 8 is the RA designated by the outputs S _U and S _L of ROM3.
The content of the address of M5 is temporarily stored and sent to another input S in synchronization with the input F of the arithmetic circuit 7.

The oscillator 9 outputs a clock signal of a constant cycle, and the timing generator 10 divides the clock signal to a predetermined frequency and outputs a timing signal for controlling each block in time series. The key input unit 11 is a block that sends a signal for instructing each processing operation to the system, and includes the key switches S _{1 to} S ₄ shown in FIG. The frequency dividing circuit 12 is a counter that divides the output from the oscillator 9 and generates a clock signal of a constant period, and the clock signal is used for clock processing and the like described later.

The display unit 2 is a block that displays the processed data via the display buffer 2a, and is the same as that shown in FIG. The buzzer 13 is a block that generates an alarm sound or the like based on the data from the bus line. Bus control gates A ₁ , A ₂ , B ₁ , B ₂ , C _{1 to} C ₄ , D ₁ , D ₂ are gates for controlling the data flow of each bus line based on the output signal of the instruction decoder 6 and the like. .

Next, FIG. 4 shows the main internal configuration of the RAM 5 described above.
In the figure, a current time register T is a register for storing the current date (year, month, day, day of the week, etc.) and time (hour, minute, second, etc.), and a date data register R.
Is data such as names of many people and date data corresponding to each (for example, the date of birth or the anniversary of the wedding, month, day,
This is a register for storing hours, minutes, etc. Year data is 19
The year 01 is stored as 001. For example, the year 2000 is 100, 2099.
The year is 199. Although not shown in the figure, a register for storing the telephone numbers of many people is provided.

Further, the mode flag M stores values of 0 and 1 corresponding to the respective modes when the display mode of the display unit 2 described above is various modes (normal time mode, date memory mode) described later. It is a flag. Further, the flags L and K are flags that store 1 when the display mode is the number of days display mode or the correction mode.

The registers X, Y, and Z are registers for storing the number of elapsed days, the number of remaining days, and the number of elapsed years as the calculation results described later.

The register N is a register for storing the number of data stored (set) in the date data register R, n is a register for storing the address of the date data register to be notified next time,
P is a page register that stores the address of the selected date data register. The buffers BUF1 and BUF2 are buffers for storing the year, month, day, hour, minute of the date data register R and whether or not the year is a leap year for calculating the number of days and the number of years described later. The future flag F is a flag used when the data is in the future.

Next, FIGS. 5 and 6 show the key switch S ₁ described above.
Based on operation or the like to S _4, a diagram illustrating an example of various display state in the display unit 2. The display operation of this embodiment will be briefly described with reference to these drawings.

First, in FIG. 5, if the key switch S ₃ is operated in the normal time display mode (M = 0) for displaying the normal time, the display mode is switched to the date memory mode (M = 1), and the key switch S is again displayed. If you operate ₃ , you will return to the original normal time display mode (M = 0). In the normal time display mode (M = 0), the current month, day, day of the week and the date data classification mark (birthday mark in the example) to be notified next time are displayed in the upper part of the display unit 2 and the hour mark is displayed in the lower part. Minutes, seconds, etc. are displayed. In this example, Monday, May 12, 10:58:30 is displayed.

The initial state of the date memory mode (M = 1) is the date display mode (M = 1 and L = 0). In this mode, the date stored in the date data register R (for example, “SATO”) Date data is displayed. In this example, for example, "SATO"'s date of birth, 14 May 1955
The day (1:00 pm) is displayed. Also, "SATO"
The display part of Mr. is switched and displayed every second with a predetermined birthday mark indicating that this data is a birthday. If the key switch S ₄ is operated here, the mode is switched to the number of days display mode (L = 1), and the number of years elapsed from the date of birth of the above date data to the present (29 years) the number of elapsed days (36
3 days) and remaining days (2 days) until birthday (May 14)
And are displayed. By looking at this display, "SATO"
You can see that she is now 29 and has two days left until her 30th birthday. By operating the key switch S ₄ again, the above date display mode (M = 1 and L = 0)
Return to.

Next, in the date display mode (M = 1 and L = 0), if the key switch S ₁ is operated, the data stored in the date data register R is changed to the corresponding one as shown in FIG. It is displayed each time the key switch S ₁ is operated,
When all the stored data are displayed once, the original display is displayed again. Then, when the key switch S ₄ is operated in the date display of each data, the display is switched to the number of days display.

Further, in each of the above date display modes (L = 0), if the key switch S ₂ is operated, the mode is switched to the correction mode (K = 1), and each stored data can be corrected.
By operating the key switch S ₂ in the blank page display, the mode is switched to the setting mode (K = 1) and new data can be set. In such a setting or setting mode, for example, as shown in FIG. 5, a correctable or settable portion (digit) is blinking (circled), and a desired digit can be selected by key operation. You can Then, after correcting or setting by key operation, key switch S ₂
When is operated, an editing process is performed in which the corrected or set data is rearranged in order of date. When this processing is completed, the original date display mode (L = 0) is returned to.

Next, FIG. 6 shows a mode of each display in the days display mode (L = 1). First, as shown in FIG.
If the data in the date data register R is an empty page,
A bar (-) is displayed for each of the remaining days, the elapsed years, and the elapsed days. As shown in FIG. 6B, when the data in the date data register R is future data (for example, when the current time is January 1, 1986 and the data is May 4, 1986), the remaining data remains. Only the number of days (123 days) is calculated and displayed, and a bar display (-) is displayed for each of the elapsed years and the elapsed days. As shown in FIG. 7C, when the data of the date data register R has the same time and date (for example, the current time is January 1, 1986 and the data is January 1, 1986). In the case), the remaining days (000 days) are calculated and displayed, and a bar display (-) is displayed for each of the elapsed years and the elapsed days. As shown in FIG. 7D, when the data in the date data register R is past data (for example, the current time is 1986).
If the data is January 1, 1983 and the data is May 4, 1983),
Remaining days (123 days), elapsed years (2 years), elapsed days (242
Each) is calculated and displayed. As shown in (e) of the figure, when the data in the date data register R is past data and differs only in the year (for example, when the current time is January 1, 1986 and the data is January 1, 1984). Indicates the number of remaining days (000 days), the number of years elapsed (2 years), and the number of days elapsed (000 days).

Next, a specific processing operation for enabling the above-mentioned display will be described with reference to FIGS. 7 to 14.

First, FIG. 7 is a general flow showing the overall processing flow of this embodiment. In the figure, if there is no key input processing instruction from the halt state at step a ₁ , 1 /
According to the 16-second signal, the clock processing is performed in step a ₂ , and
When any key switch is operated and a key input operation is instructed, key processing is performed in step a ₃ .

The key processing overview (step a ₃₎ shown in Figure 8. In the figure, in step b ₁ ~b _3, the operated key is S ₁ ~
Look either in S _4, performs processing corresponding to the operated key (step b ₄ ~b _7).

First, the key S ₁ process (step b ₄ ) is specifically shown in FIG. In the figure, first, at step c _1, it is checked whether the mode flag M is 1, that is, whether the display mode is the date memory mode, and if M = 1, then at step c ₂ the flag K is set.
Is in the correction mode (K = 1). If K = 1 in step c ₂ , the data correction process is performed in step c ₃ , and then the display process is performed in step c ₄ . The data correction processing (step c _3), the (+) is performed by modifying in the direction to the advanced numbers and the selected digits corresponding to the operation key S ₁ symbols, etc., the display process (step c ₄₎ Is performed by sending the corrected data to the display buffer 2a shown in FIG. That is, by operating the key S ₁ in the correction mode, new data can be written in a desired digit. Unless K = 1 in the above step c _2, in step c _5, examine whether the date display mode (L = 0), in step c ₆ if date display mode (L = 0) to the page register P Page shift is performed by adding 1 (however, when P = N, P is set to 0
Then, display processing is performed in step c ₇ . That is, in the date memory mode (M = 1), when not in the correction mode, the data stored in the date data register R is sequentially switched and displayed by the operation of the key S ₁ , and the initial data is restored again. M in step c ₁ above
If = 1 is not satisfied, another process is performed in step c ₈ .

Next, the key S ₂ process shown in step b ₅ of FIG. 8 is specifically shown in FIG. In the figure, first, at step d _1, it is checked whether the mode flag M is the date memory mode (M = 1). If M = 1, then at step d ₂ the flag K is in the correction mode (K = 1). Please see. If K = 1,
In step d ₃ checks to see whether the date display mode (L = 0),
In the date display mode (L = 0), K is set to 1 in step d ₄ and then the display process is performed in step d ₅ . That is, the date display mode (M = 1 and L = 0) is switched to the correction mode (K = 1) for display. K in step d ₂ above
= 1, the correction mode is released in step d ₆ (K =
0), followed by normalization processing in step d ₇ and step d ₈
Edit with. The normalization process is a process for making an empty page when data is forgotten. The editing process is a well-known process (sorting process) for arranging the data in the date data register R in order of date regardless of the year.
After the editing process of step d _8, and timer start of 1 second in step d _9, and then performs display processing in step d _10. If M = 1 in step d ₁ above, step d ₁₁
And other processing is performed.

Next, the key S ₃ process shown in step b ₆ of FIG. 8 is specifically shown in FIG. In the figure, first, at step e _1, it is checked whether the mode flag M is the date memory mode (M = 1). If M = 1, then at step e ₂ is the flag K the correction mode (K = 1)? Please see. If K = 1,
In step e ₃ , check whether it is the date display mode (L = 0),
If it is the date display mode, M is set to 0 in step e ₄ , and then in step e ₅ , pointer processing is performed to put the value of the address register (n) of the date data register to be notified next time into the page register (P). Display processing is performed in step e ₆ . That is, the operation of the key S ₃ switches the date display mode (M = 1 and L = 0) to the normal time mode (M = 0) display. The page register (P) becomes the address of the date data register to be notified next time. Step e ₂ above
If in K = 1, corrected in step e ₇ digit shift processing is performed, followed performs display processing in step e ₈ in. This correction digit shift processing is performed by sequentially selecting the digits corresponding to the month, day, hour, etc. of the data according to the number of times the key S ₂ is operated. Next, the digit selected in this way (for example, the digit shown in the circle in FIG. 5) is blinked by the display processing in step e ₈ . That is, by operating the key S ₃ in the correction (or setting) mode, the correctable (or settable) digit can be sequentially selected, and the digit can be notified by blinking display. Above steps
If M is not ₁ in e ₁ , M is set to 1 in step e ₉ , then a timer of 1 second is started in step e ₁₀ , and then display processing is performed in step e ₁₁ . That is, by operating the key S ₃ in the display of the normal time mode (M = 0), the display is switched to the display of the date memory mode (M = 1).

Next, the key S ₄ process shown in step b ₇ of FIG. 8 is specifically shown in FIG. In the figure, first, at step f _1, it is checked whether the mode flag M is the date memory mode (M = 1). If M = 1, then at step f ₂ whether the flag K is the correction mode (K = 1). Please see. If K = 1,
At step f ₃ , it is checked whether the mode is the number of days display mode (L = 1). L = 1 Otherwise, after the 1 L in step f _4, performs days calculation processing in step f _5, performs the display processing in step f _6. That is, key S _{4 in the} days display mode
If is operated, the number of days corresponding to the data is calculated and the number of days is displayed. With this, the remaining days, the number of years elapsed,
You can know the number of days elapsed. The number of days calculation process will be described later. If L = 1 in step f ₃ above,
The L in step f ₇ after releasing dates display mode is set to 0 and performs a display process in Step e _8. That is, if the key S ₄ is operated in the days display mode (L = 1), the display is switched to the date display mode (M = 1 and L = 0).
If K = 1 in step f ₂ , the data correction process is performed in step f ₁₀ and then the display process is performed in step f ₁₁ . The data correction processing (step f ₁₀₎ is (-) is performed by modifying a digit and symbols corresponding digits selected in advanced in the direction to the operation of the key S _4, the display process (step f ₁₁₎ Is performed by sending the corrected data to the display buffer 2a shown in FIG. That is, by operating the key S ₄ in the correction mode (K = 1), data can be corrected or new data can be written in a desired digit. If M = 1 is not satisfied in step f ₁ above, another display process is performed in step f ₁₂ .

Next, FIG. 13 specifically shows the number-of-days calculation process in step f ₅ . First, in step g ₁ , the date / time data (hereinafter referred to as DA) of the data area stored in the date data register R is transferred to the buffer BUF 1, and in step g _{2 the} current date / time / date data (hereinafter DA) is transferred to the buffer BUF _2. BT) and then in step g ₃ the value of buffer BUF2 and buffer BU.
Compare with the value of F1 (BT-DA), DA is the current time,
Determine whether it will be the past, the day, or the future.

If DA is the day (date match with BT-DA = 0) is "0" in the register Y in step g _4, Step g ₅ and the registers X in step g _6, "bar display on Z"-"" 16
Enter the decimal value F. This results in the display shown in FIG. 6 (c).

If DA is in the past (BT-DA> 0), enter the year data of the buffer BUF2 (current BT year) to the register Z in step g ₇ , and use the year data in the buffer BUF 2 to buffer in step g _8.
Subtract the year data (past DA year) for BUF1. This step
provisional calculation of the number of years elapsed by the g _7, g ₈ is carried out.

Next, in step g ₉ , the comparison of date data between BT and DA (BT-D
A) Here if the date data matches the inputs "0" to the register X and Y, respectively in step g ₁₀ and g _11. This results in the display shown in FIG. 6 (e). If the date and time data in buffer BUF2 is greater than the date and time data in buffer BUF1, if the comparison in step g ₉ above does not match, then in step g ₁₂ , the date and time data in buffers BUF2 and BUF1 are the number of days elapsed since January 1st. And the respective values are set as x and y. Next, in step g ₁₃ , the number of days x is input to the register X, and in step g ₁₄ , the number of days x is subtracted from the number of days x in the register X. Provisional calculation of age is performed by the step g _13, g _14. Next, in step g ₁₅ , 365 is input to the register Y, and in step g ₁₆ , the number of days x is subtracted from the value 365 of the register Y. Provisional calculation of the remaining number of days is performed by the step g _15, g _16.

Next, in step g ₁₇ , it is determined whether the number of days y is “60” or more (y-60 is calculated). "60" means y (D
When the number of days in A) is a leap year, it is the value converted into the number of days on February 29th, and it is determined whether it was before February 28th. If the number of days y is less than "60" (before February 28), the number of days x, that is, buffer B, is entered in step g _18.
Data UF2 is determined whether a leap year, 1 is added to the register Y in step g ₁₉ if leap year, and it is the register if not a leap year. This is when the month / day data of the buffer BUF2 is a leap year, and when it is before February 28, it is the next year.
This is because February 29th exists before the DA date, and it is necessary to correct the remaining days (value of register Y).

If the number of days y is greater than "60" (after February 28),
In step g ₂₀ , it is judged whether the number of days x, that is, the data in the buffer BUF 2 is a leap year, and if it is a leap year, in step g ₂₁ ,
It is determined whether the number of days y, that is, the data in the buffer BUF1 is a leap year. If not leap year data in the buffer BUF1 is in step g _21, 1 is added to the register Y in step g _22,
Then subtract 1 from the register X in step g _23, if a leap year register X, the as it is Y. This is because, if the month / day data in the buffer BUF2 is a leap year, and after February 28, the number of days x previously used is larger than the whole year and correction is required.

If not leap year data in the buffer BUF2 is in step g _20, the data in the buffer BUF1 in step g ₂₄ determines whether a leap year. If the data in the buffer BUF1 is a leap in the step g _24, 1 is added to the register X in step g _25, followed by year of the buffer BUF2 is determined whether a leap year in step g _26, if not a leap year, step g _{At 27} , subtract 1 from register Y and leave it as it is for a leap year. Further, if the data in the buffer BUF1 is leap year in step g _24, year of the buffer BUF2 is determined whether a leap year in step g _28, if a leap year, the 1 in the register Y in step g ₂₉ added, a leap year If not, leave it as it is.

That is, the number of days elapsed by leap step g ₁₇ to g _29,
The values of the registers X and Y, which are the remaining days, are corrected.

Then, when the date data of the buffer BUF2 is less than the date data in the buffer BUF1 in step g _9, the step
Number of years elapsed in register Z tentatively calculated with g ₃₀ (step g above)
1 drawn from the calculated) at _8, wherein the converting process to the number of days since January 1, the date data in the buffer BUF2, BUF1 in step g ₃₁ similarly to the respective values x, as y.

Next, in step g ₃₂ , the number of days y is input to the register Y, and in step g ₃₃ , the number of days x is subtracted from the value of the register Y. By these steps g ₃₂ and g ₃₃ , the remaining days are tentatively calculated.

Next, at step g ₃₄ , 365 is input to the register X, and at step g ₃₅ , the value of the register Y is subtracted from the value of the register X. The provisional calculation of the elapsed days is performed by these steps g ₃₄ and g ₃₅ .

Next, at step g ₃₆ , it is judged whether the number of days y is “60” or more (y-60 is calculated). "60" is the value obtained by converting February 29th to the same days as above, and it is determined whether it was before February 28th. If the number of days y is less than "60" (before February 28), go to Step g ₃₇ and set the number of days y.
In other words, determine whether the data in buffer BUF1 is a leap year,
If it is a leap year, 1 is added to the register X in step g ₃₈ , and if it is not a leap year, the register X is left as it is. If the number of days y is greater than “60” in step g ₃₆ above (after February 28)
In step g ₃₉ , it is judged whether the number of days x, that is, the data in the buffer BUF2 is a leap year. If it is a leap year, step g _{39
At 40} , it is determined whether the number of days y, that is, the data in the buffer BUF1 is a leap year. If not leap year data in the buffer BUF1 is in step g _40, 1 is added to the register Y in step g _41, as it is if a leap year, the process proceeds to step g _37.

If not leap year in step g _39, in step g ₄₂ data buffer BUF1 to determine whether a leap year. If the data in the buffer BUF1 is a leap in the step g _42, 1 is subtracted from the register Y in step g _43, as it is if not a leap year, the process proceeds to step g _37.

That is, the number of days elapsed by leap step g ₃₆ to g _43,
The values of the registers X and Y, which are the remaining days, are corrected.

Next, in step g ₃ above, if DA is in the future (BT-D
The A <0), the buffer BUF1 in step g _44, transferred to the current date data (BT), the buffer BUF2 in step g ₄₅
, The transferred date data date data register R (DA), process continues after setting the future flag F in step g ₄₆ Step g _7. That is, when DA is future data, the data to be obtained is only the number of remaining days. The future data (DA) is stored in the buffer BUF2, and the date and time data (BT) at the current time is stored in BUF1. Calculate from _{7 to} g ₄₃ . As a result, the value of the remaining days to be calculated is calculated as the number of elapsed days, and is entered in the register X.

Next, after the past and future days have been calculated, the process proceeds to step g ₄₇ to check whether "F" is set in the DA year data. If the "F" has not been set (data is set), see if future flag F is set in step g _48. If the future flag F is set, the value of the register X from and transferred to the register Y in step g _49, the process proceeds to step g _5. That is, in the case of future data, as shown in FIG. 6B, the number of remaining days is displayed, and the number of elapsed days and the number of elapsed years are displayed as a bar (-). Further, if the future flag F is not set in step g ₄₈ (historical data), as shown in FIG. 6 (d), the remaining number of days, age, number of years elapsed is displayed.

If "F" in the year data in the above step g ₄₇ is set (empty page), load more "bar display (F)" in the register Y in step g _50, the process proceeds to step g _6. That is, in the case of an empty page, as shown in FIG. 6 (a), the remaining days, the elapsed days, and the elapsed years are all displayed as bars (-).

Next, FIG. 14 specifically shows the timing process shown in step a ₂ when there is a 1/16 second signal in the HALT (step a ₁ ) state of FIG. In the figure, first, in step h ₁ , hour, minute and second processing is performed, and then in step h _2, it is checked whether or not there is a carry. If there is a day carry, step h ₃
In performs a correction processing of the date, followed by step h ₄ after performing a number of days treatment for an advance notice, an alarm processing in step h _5. Days treatment for the predictive display of step h ₄ is the display body 2b shown in FIG. 2, for lighting the number corresponding to the number of days remaining is a well known process. Further, the alarm processing of step h _5, upon arriving at the current time, performed in order to sound the buzzer 13 shown in FIG. 3, it is a well known process. If there is no day carry in step h ₂ above, the process directly goes to the alarm processing in step h ₅ .

Next, at step h ₆ , it is checked whether the date memory mode (M = 1) is set. If M = 1 is not set here, it is the normal time mode (M = 0), and the display processing of the normal time is performed in step h ₇ . If M = 1, see whether the number of days display mode in step h ₈ (L = 1). If L = 1, the number of days remaining, elapsed year, the number of days display processing such age performed in step h _9. Unless L = 1 in step h _8, whether time is up in step h _10, i.e. to see if one second has passed, if passed, the switching process of the display data in step h ₁₁ (e.g., date performs a data register switching process of the name data and the birthday mark of R), then after the re-start of the one-second timer in step h _12,
It performs a display process of the memory contents in step h _13. If not time-up in step h _10, directly proceeds to the display process of step h _13.

Although the processing of this embodiment is performed as described above, the display mode is not limited to the above.

Further, the date data applicable to the present invention may be not only the date of birth or the planned marriage date as described above, but also date data such as the next license renewal date of a car or a general schedule.

Furthermore, the number of days calculation process is not limited to the embodiment as long as at least the number of remaining days, the number of elapsed years, and the number of elapsed days are calculated.

Further, in the above embodiment, the example applied to the display of the electronic wrist watch is described, but it is also applicable to a small electronic calculator or the like,
It can also be incorporated into IC cards and other devices.

[Effect of device]

According to the present invention, since the number of days remaining and the number of days elapsed are simultaneously displayed for the setting data, even if future data becomes past data as it is, it is retained as a memorial day, etc. You can easily know the number of remaining days until the month, the number of years elapsed, and the number of days elapsed, which is useful for preventing forgetting and preparing.

[Brief description of drawings]

FIG. 1 is an external view showing an electronic wrist watch according to an embodiment of the present invention, FIG. 2 is an enlarged view showing a surface portion of a display unit 2, FIG. 3 is a block diagram showing an internal circuit of the embodiment, FIG. 4 is a diagram showing the main internal structure of the RAM 5, FIGS. 5 and 6 (a) to (e) are diagrams showing examples of various display states, and FIG. FIG. 8 is a flowchart showing the processing operation, FIG. 8 is a flowchart showing an outline of the key switch processing of FIG. 7, FIG. 9 is a flowchart showing the key switch S ₁ processing of FIG. 8 in detail, and FIG. 10 is FIG. 11 is a flow chart showing the key switch S ₂ process of FIG. 11, FIG. 11 is a flow chart showing the key switch S ₃ process of FIG. 8 concretely, and FIG. 12 is a flow chart showing the key switch S ₄ process of FIG. The flowchart shown in Fig. 13 shows the number of days calculation process in Fig. 12 concretely. 14 is a flowchart specifically showing the timing process of FIG. 7. 2 ... Display, 2a ... Display buffer, 3 ... ROM, 5 ...
... RAM, 7 ... Arithmetic circuit, 9 ... Oscillator, 12 ... Divider circuit, R ... Date data register, M ... Mode flag,
L, K ... Flag, X, Y, Z ... Register, N ... Data number storage register, P ... Page storage register, n ...
... Page storage register for next notification.

Claims (1)

[Scope of utility model registration request] 1. A clocking means for counting a reference clock signal to obtain at least current date data, an input means for date data, and a storage means for storing a plurality of date data input by the input means. A designation means for designating one of the plurality of date data stored in the storage means, an operation switch means operated for displaying the number of days, and an operation switch means operated when the operation switch means is operated. Determination means for determining whether the date data designated by the designation means is present, past, or future data with respect to the current date data obtained by the time counting means; If the determination result of is a future, the number of remaining days from the present date to the designated date data is calculated from the date data designated by the designation means and the current date data obtained by the time counting means. First performance to calculate Means, and if the discrimination result of the discriminating means is in the past, the month / date data of the date / month data designated by the designating means and the month of the present date / month / day data obtained by the clocking means The number of remaining days from the present date to the date data of the designated date data is calculated, and the date data designated by the designating means and the current date obtained by the timing means are calculated. Second calculation means for calculating the number of days elapsed from the date data specified from the date data to the current date data obtained by the time measurement means, and the first calculation means The number of remaining days from the present to the specified date data, the number of remaining days from the present calculated by the second calculating means to the date data of the specified date data, and the specified date Shows the number of days elapsed from the data to the current date A data storage device comprising: a display unit as shown.