JPH0720634Y2 - Date data storage device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a date data storage device capable of storing date data such as anniversaries and scheduled dates.

[Conventional technology]

Conventionally, as a device capable of storing date data, a device having a scheduler function or a date alarm function is known.

Among them, the scheduler function is a function for storing future date data such as a scheduled date that the user wants to store as an electronic memo. In the future date data, it is often a matter that the user wants to know how many days after the future date is from today. Therefore, some of the scheduler functions have a function of notifying the remaining number of days from the present to the future by displaying an image.

[Problems of conventional technology]

The above-mentioned conventional date data device is configured to erase the data by the day carry after the detection of the coincidence for the month and day, and the data cannot be stored as an anniversary or the like.

[Purpose of device]

In view of the conventional situation described above, the present invention is capable of continuously storing future data such as scheduled dates as anniversaries, and knowing the number of days elapsed from the recorded date and the number of remaining days until the anniversary. It is an object to provide a data storage device.

[Key points of device]

The present invention stores date information such as anniversaries,
The point is that the number of elapsed days is calculated using date data including the years up to the current date, and the remaining number of days is calculated using only date data of months and days regardless of the year.

〔Example〕

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

FIG. 1 (a) is an external view showing an electronic wrist watch to which an embodiment of the present invention is applied. In the figure, the watch body 1 is
A display unit 2 such as a liquid crystal display device for performing various displays and keys S _{1 to} S ₄ for performing various operations are provided. In the display section 2, specifically, a matrix display or a segment display is performed as shown in an enlarged view in FIG. 1B, and seven display bodies 2b are used, which will be described in detail later. Warning notice will be displayed.

FIG. 2 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 is a block that controls the address of the ROM 3 that regulates the flow of the program. The output N _A that designates the next address of the ROM 3 and the output of the arithmetic circuit 7, the key input unit 11 and the frequency divider described later. circuit
The output from 12 is input. The RAM 5 outputs the data of the address specified by the address data output S _U , S _L and F _U , F _L of the ROM 3, and stores the result obtained by processing and processing each data by the arithmetic circuit 7. It is a memory. Instruction decoder 6 outputs instruction output In of ROM3
It is a block that decodes s and sends a control signal to each block. Arithmetic circuit 7, S, performs arithmetic and logic operation as an input F, writes the output Output F _U of ROM 3, the address of the RAM5 specified by F _L. Latch circuit 8 is ROM3
The contents of the address of the RAM 5 designated by the outputs S _U and S _L of the above are temporarily stored and sent to the other 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 cycle, 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. The 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. 3 shows the internal configuration of the RAM 5 described above. The current register T is a register that stores the current date (year, month, day, day of the week) and time (hour, minute, second), and the data memory area DM is (item ID, name, date, time). This is a storage area for storing a plurality of pages of date data such as the date of birth and the anniversary of marriage. BUF1 and BUF2 are the remaining days and the number of days elapsed (including the number of years elapsed), which will be explained in detail later.
It is a buffer used for the number of days calculation process, etc.
Depending on whether the corresponding date data in the data memory area DM is future data, the date (year, month, day) and time (hour, minute) of the date data or the date of the current time ( Stores year, month, day) and time (hour, minute).

Further, BUF1 is a leap year flag UF ₁ , and BUF2 is a leap year flag UF ₂ , UF _3.
If the date data stored in BUF1 or the current time is a leap year, UF ₁ is “1”. If the date data stored in BUF 2 or the current time is a leap year, UF ₂ is “1”. If the date data or the year following the current time is a leap year, UF ₃ is set to "1". BUF1 is also used to store the contents of date data to be corrected in the correction mode (K = 1).

The mode flag M indicates that the display mode of the display unit 2 described above is
This is a flag for storing the values of "0" (BT mode) and "1" (memory mode) corresponding to each mode when the mode is the various modes (BT mode, memory mode) described later.

Further, the mode flag L is
This is a flag that stores "0" and "1" when the display mode is the memo content display mode and the number of days display mode, respectively.
The mode flag K is a flag that stores "1" in the correction mode.

The future flag F is a flag for storing "1" when the year of the date data is in the future than the current date in the above-described number of days calculation process. Further, as will be described in detail later, the flags F ₁ , F ₂ , F ₃ , F ₄ are flags that store “1” according to the result of comparison between the date data and the current date. Further, the counter N is The pointer n stores the total number of date data stored in the data memory area DM, and the pointer n stores the page address in the data memory area DM of the date data which needs to be notified of the arrival of the next date.

Further, the page pointer P stores the page address of the date data in the target data memory area DM during the processing such as the number of days calculation processing. And registers X, Y, Z
Is a register used in the number of days calculation process. Registers Z, X, and Y are the number of elapsed years and the number of days elapsed as a result of the number of days calculation process. More than in the past) and days left (if the date data is in the future than the current date). Further, the timer TM stores a timer time for timer processing described later.

Next, FIG. 4 is a diagram showing a display state of various display modes of the display unit 2 based on the operation of the above-mentioned key switches S _{1 to} S ₄ , and FIG. 5 shows a display state of various screens in the number of days display mode. FIG. The display operation of this embodiment will be briefly described with reference to these drawings.

In FIG. 4, the normal time mode (M = 0) [hereinafter referred to as the BT mode] is set, and the current time on the display unit 2 is May 12
When Monday (Monday) 10:58:30 is displayed,
When the key switch S ₃ is operated, the display unit 2 is switched to the memory content display mode (M = 1 and L = 0), and "SATO"'s birth date is May 14, 1955, 1:00 pm Is displayed, and the location of the item display column is changed to "SATO" or "Birth mark" shown in the upper left corner of the figure, and is automatically switched and displayed.

In the memory content display mode, when the key switch S ₂ is operated, the display unit 2 switches to the correction mode [K = 1],
The correctable digit blinks. In FIG. 4, the part "P1" indicating 1:00 pm is a blinking display.

Movement correction digit is performed by the key switch S _3, correctable digits are sequentially blinks every operation of the key switch S _3.

The correction of the blinking correction digit is performed by the key switch S ₁ or the key switch S ₄ . + Direction correction (for example, 1 → 2 → ・ ・ ・ → 12 for monthly data, SUN for day of week)
→ MON → ・ ・ ・ → SAT, etc., is corrected in one direction by operating the key switch S ₁ (for example, 12 → 11 → for monthly data).
・ ・ ・ → 1, day of the week data, SAT → FRI → ・ ・ ・ → SU
N etc.) can be performed by the key switch S ₄ .
From the correction mode (K = 1) to the memory content display mode (M =
To return to 1 and L = 0), the key switch S ₂ may be operated.

On the other hand, if the key switch S ₄ is operated in the memory content display mode (M = 1 and L = 0), the number of days display mode (L1)
In the example of Fig. 4, "SATO"'s date of birth from May 14, 1955 to the current date (May 12, 1985 in this case) is 29 years and 363 years. The days have passed and May 1
You can see that your 4th birthday will come 2 days later.

Various display examples corresponding to date data in the number of days display mode (L = 1) of this embodiment will be described with reference to FIG.
(A) is a display example of a blank page in which date data is not set, and the remaining days, the number of years elapsed, and the number of days elapsed are all "-".
−− ”is displayed. (B) is the case where the date of the date data is in the future (including the case where the year data is not set), and the number of days corresponding to the remaining number of days is displayed.
Both the number of years elapsed and the number of days elapsed are displayed as "---". In this example, the number of remaining days “123” is displayed. (C)
Indicates that the date of the date data is the same as the current date for all of the year, month, and day. The remaining days are displayed as "000", and the elapsed years and elapsed days are both displayed as "-". To be done. (D) is a case of past data similar to the above-mentioned birthday data of Mr. "SATO", and the number of days or years corresponding to all of the remaining days, the elapsed years, and the elapsed days is displayed. In this example, the number of years elapsed = "02", the number of days elapsed = "24"
2 ”and the number of remaining days =“ 123 ”. (E) is a case where the date of the date data is past data and the date data (month, day) matches the current date (month, day). In this case, the number of remaining days and the number of elapsed days are
“000” is displayed, and the number of years corresponding to the number of elapsed years is displayed. In this example, “02” is displayed as the number of years elapsed.

To return from the number of days display mode (L = 1) to the memory content display mode (M = 1 and L = 0) as described above, the key switch S ₄ is operated again. Memory content display mode (M
= 1 and L = 0), by operating the key switch S ₁ , the contents of the date data stored in the date memory area DM can be sequentially confirmed in the order of date (month, day). Then, when the key switch S ₁ is operated again after the content of the date data of the last page address in the data memory area DM is displayed, the display returns to the display of the date data of the first page address. Explaining with a concrete example in FIG. 4, first, "SATO"'s birth date is "1955 5
When the key switch S ₁ is operated while "14 pm on the 14th of the month" is displayed, the date data "Mr. AOKI" next is "11:00 pm on June 20, 1986". Is displayed, the date data is displayed in order of date (month, day),
Finally, the date data about "KATO""30 December 1952
"3:00 a.m." is displayed and the key switch S ₁ is displayed again.
When is operated, the date data regarding "SATO" is displayed again. Memory content display mode (M = 1 and L
To return to the BT mode from (= 0), the key switch S ₃ may be operated.

Next, a specific processing operation for enabling the above-mentioned display will be described with reference to FIGS. 6 to 10.

FIG. 6 is a general flow showing the overall flow of processing of this embodiment. As shown in the figure, the system is normally in the HALT state (step a ₁ ), and unless a key is input, the timekeeping process described later is performed at regular intervals (step a ₂ ) and the key switch key processing is performed only when the key input, such as S ₁ to S ₄ is performed (step a _3).

Next, the details of the timing process of step a ₂ will be described with reference to the flowchart showing the details of the timing process in FIG. In the timekeeping process, first, in step b ₁ , the hour-minute-second process for creating the current time is performed, and then in step b ₂ , as a result of the hour-minute-second process, whether or not there is a day carry (that is, on the next day). Step, if there is a carry in the day,
In b ₃ performs a modification of the current date (year, month, day) (year, month, day treatment), moves to the alarm processing of step b _4. If there is no carry in step b, the process directly goes to step b ₄ . In alarm processing of step b _4, dating alarm processing, and performs time alarm processing and the like, compares the date and time and the current date and time of the date data stored in the data memory area DM, the above-mentioned Thus, if the date of the date data is scheduled to arrive within 7 days from the current date, a notice display for turning on the number of the display bodies 2b according to the number of remaining days is displayed (date alarm processing). If the time of the date data matches the current time, an alarm sound or the like is generated to notify that the scheduled time has arrived (time alarm processing).

Next, in step b ₅ , it is checked whether or not the current display mode is set to the memory mode (M = 1). If it is not the memory mode (M = 1), that is, if it is the BT mode, the time is set in step b ₆ Is displayed and the current date (month,
Displays the day and day of the week and the current time (hours, minutes, seconds). If it is the memory mode (M = 1) in step b ₅ , it is checked in step b ₇ whether it is the number of days display mode (L = 1). If it is the number of days display mode (L = 1), step b ₈ The remaining number of days, the number of years elapsed, the number of days elapsed, etc. are displayed on the display section 2.

On the other hand, unless the number of days display mode (L = 1) in step b _7, the timer time of the automatic switching display described above checks whether completed in step b _9, if the timer time has ended, step b _{At 10} , switch the item display field for date data display data to (Name → Mark) or (Mark → Name). Then, the timer is started in step b _11, and displays the new display data in step b ₁₂ to the display unit 2.

In addition, the display of the previous date memo data moves directly to step b ₁₂ unless the timer time is still ends in step b _9.

Thus, in the timekeeping process, the current date (year, month,
(Day) and the current time (hours, minutes, seconds), etc. are updated, a notice is displayed and an alarm sound is generated, and each screen corresponding to the display mode is updated based on the display mode. If it is the time display mode, the current time and the current date are updated, and if it is the number of days display mode,
The remaining days, the number of years elapsed, the number of days elapsed, etc. are updated immediately on the screen, and if the memory content display mode is selected, the contents of the date data are switched between "Name" and "Marta" in the item display field. , Automatic switching display at fixed time intervals.

Next, FIG. 8 is (a), it is a flow chart showing the (b) Details of key processing of the step a _3. In the key processing, first, in step c ₁ , it is determined whether or not the switch S ₃ is pressed. If the switch S ₃ is pressed, the process proceeds to step c _2; otherwise, the process proceeds to step c ₁₃ . At step c ₂ , it is judged whether the display mode is currently the memory mode (M = 1). If the memory mode (M = 1), at step c ₃ it is the correction mode (K = 1). Make a decision. If the memory mode (M = 1) and the correction mode (K = 1), the correction digit is moved to the next digit in step c ₄ , and the previous correction digit is stopped on the display unit 2 in step c _5. In addition to displaying, the new correction digit is displayed blinking.

On the other hand, if it is not the correction mode in step c ₃ , step c ₆
Determines whether the memory content display mode (M = 1 and L = 0) is satisfied, and the memory content display mode (M = 1 and L =
If 0), the value of the flag M in step c ₇ to "0", changing the display mode to the BT mode (M = 0). Perform pointer processing such as setting the page address to inform the next time page pointer P in step c _8, performs the display processing in step c _9.

On the other hand, unless the memory mode (M = 1) in step c _2, is set to "1" the value of the mode flag M in step c _10, the timer is started in step c _11, step c
Display processing is performed at ₁₂ .

That is, when the switch S ₃ is operated in the BT mode (M = 0), the display section is switched from the BT mode (M = 0) to the memory content display mode (M = 1 and L = 0), and at a constant time interval. , The contents of the date data is the item part (name → mark)
The display changes automatically while changing to.

In addition, the display unit 2 displays a memory content display mode (M = 1 and L
= 0), operating the key switch S ₃ causes the display unit 2 to
The mode is switched to BT mode (M = 0) and the current date (year, month,
The date, day of the week) and the current time (hour, minute, second) are displayed.
The display unit 2 is at the correction mode (K = 1), when operating the key switches S _3, correction digit is moved for each operation, correction digit is flashing.

When the key switch S ₃ is not operated in step c ₁ , it is determined whether or not the key switch S ₁ is operated in step c ₁₃ , and when the key switch S ₁ is operated, in step c ₁₄ . Display mode is memory mode (M =
It is determined whether or not 1). Then, if the memory mode (M = 1), correction mode in step c ₁₅ (K
= 1) or in step c ₁₆ whether the memory content display mode (L = 0) is checked. If the memory content display mode (L = 0), in step c ₁₇ , the page pointer P By incrementing the value by 1, the page address indicated by the page pointer P is moved to the page address of the date data coming next to the currently displayed date data, and the display processing is performed in step c ₁₈ . That is, when the key switch S ₁ is operated in the memory content display mode (M = 1 and L = 0), the contents of the date data scheduled to arrive next to the date data currently displayed on the screen of the display unit 2 are displayed. Switch to.

Further, if the correction mode in step c ₁₅ (K = 1),
At step c ₁₉ , the contents of the correction digit which is currently blinking on the display unit 2 are corrected in the + direction, and at step c ₂₀ , the correction digit is displayed in the correction mode.

In more detail by the Examples, showing the May month data on the current display part 2, "5" displayed blinking i.e., when that is the correct digit, by operating the step S ₁ "5" The display of is corrected to the display of "6" (+ direction). The operation of the switch S ₁ in the correction mode (K = 1) is correction of data in the + direction, and if the data is a number, 1 → 2 →
... can be corrected one by one in the + direction, and if it is a day of the week, it can be corrected in the direction of SUN → MON → ... SAT.

On the other hand, if it is not the memory mode (M = 1) in step c ₁₄ , the other switch S ₁ is processed in step c ₂₁ .

In step c _13, unless the key switches S _1, step c
_Move to ₂₂ and check if it is the key switch S ₂ . Then, if the key switch S _2, the display mode is checked whether the memory mode (M = 1) in step c _23, if the memory mode (M = 1), correction mode (K in step c ₂₄ = 1) is determined. And
Otherwise correction mode (K = 1), perform Determining Whether a memory contents display mode (L = 0) in step c _25. And sets the value of the flag K at step c ₂₆ if memory contents display mode (L = 0) to 1 (set correction mode), performs display processing for correction mode (K = 1) in step c _27.

That is, the display unit 2 is in the memory content display mode (M = 1 and L
= 0), operating the key switch S ₂ causes the display unit 2
Switches to the correction mode (K = 1).

If the correction mode (K = 1) in step c ₂₄ , the value of the flag K is reset to “0” in step c ₂₈ (correction of the correction mode), and the correction data or new input is made in step c ₂₉ . The year data of the date data is checked, and the normalization process for correcting the year data is performed based on the input year data.

FIG. 9 is a flowchart showing details of the normalization processing.

The normalization process will be described below with reference to FIG. First, in step d ₁ , it is checked whether year data has been set, and if so, step d ₂
The year data entered in is compared with the current year. If the entered year data is past the current year,
The flag F ₁ is set (“1”) in step d ₃ . If it is equal to the current year, check if the date entered in step d ₄ is future than the current date (month, day), and if it is in the future, set flag F ₂ in step d ₅ If the date matches or is in the past, the flag F ₁ is set in step d ₃ described above.

On the other hand, if the year data has not been set in step d ₁ above or if the year data entered in step d ₂ above is in the future from the current year, the date data entered in step d ₆ will be the current date ( It is checked whether it is past (month, day), and if it is past, the flag F ₄ is set (“1”) in step d ₇ . On the other hand, in step d _6, date data input the current date (month, day) sets the flag F ₈ in step d ₈ if not the past than ( "1") to. The flags F ₁ , F ₂ , F ₄ , F ₈ specify the year data when storing the input data in the data memory area DM in the next editing process (step c _{30 in} FIG. 8A). If the flags F ₁ and F ₂ are set, the input year data is stored as it is, and if the flag F ₄ is set, the current time stored in the current time register T is stored. It is stored year data plus one year year, when the flag F ₈ is set so that the current year data stored in the current time register T is stored.

As a result of the above normalization processing, the year data of the date data for which the year data is not set is whether the input month / day data (month, day) is earlier than the current date (month, day). in the year of year future if it is determined (step d ₆₎ past the is automatically set to the current year if not past. Meanwhile determination, even in the case of setting the future year data, in the same manner as described above, the determination process of step d _6, the current date (month, day) date data input than the whether past The year data is corrected (normalized) to a future year (if past) or a current year (if not past) within one year.

Incidentally, in the editing process of step c _30, processing for converting the date data to the internal value when storing date data newly corrected data memory area DM, the data memory area
It also performs processing such as sort processing for storing date data in the DM in order of date (month, day). After the editing process, the timer is started in step c ₃₁ (timer process), the screen in step c ₃₂ memory contents display mode (M = 1 and L =
0), and the contents of the modified date data are automatically switched and displayed at fixed time intervals.

That is, when the correction mode (K = 1) is displayed on the display unit 2, if the key switch S ₂ is operated, it is checked whether the corrected date data is correct, and if correct, it is converted to an internal value and sorted. By the processing, the contents are stored at a predetermined page address in the date memory area DM, and after a lapse of a fixed time, the contents of the corrected date and date are automatically switched and displayed on the display unit 2 at a fixed time interval. On the other hand, the above steps
If it is not the memory mode (M = 1) in c ₂₂ , step c ₃₃
To perform other key switch S ₂ processing.

Moreover, unless the key switch S ₂ in step c _22,
Proceeds to step c ₃₄ shown in FIG. 8 (b).

In step c _34, checked whether the key switch S _4, unless the key switch S _4, the process ends. On the other hand, if it is the key switch S ₄ , it is checked in step c ₃₅ whether or not the memory mode (M = 1) is set, and the memory mode (M = 1
If not 1), other processing of the key switch S ₄ is performed in step c ₃₆ .

On the other hand, if the memory mode (M = 1) in step c _35, in step c _37, checked whether the correction mode (K = 1), step c if correction mode (K = 1)
_{At 38} , the blinking correction digit data is corrected in the − direction as described above, and at step c ₃₉ , the correction digit is displayed as correction data.

Otherwise correction mode (K = 1) in step c _37,
Step c ₄₀ examines whether the number of days display mode (L = 1), if the number of days display mode (L = 1), step
In c ₄₁ , the flag L is reset to “0” (day number display mode is canceled), and in step c ₄₂ , the timer for alternately switching and displaying the contents of date data in the memory contents display mode is started, and the step perform automatic switching display of the memory contents display mode (L = 0) in c _43.

On the other hand, the number of days the display mode (L = 1) in step c ₄₀ Otherwise, i.e. memory contents display mode (M = 1 and L =
If 0), is set to "1" to the flag L in step c _44, the number of days remaining in step c _44, age, performs days calculation processing for displaying the number of years elapsed, etc., the number of days displayed in step c ₄₄ The mode (L = 1) is displayed.

FIG. 10 is a flowchart showing the details of the number-of-days calculation process in step c _{45, and} the number-of-days calculation process will be described in detail based on this diagram. First, in steps f ₁ and f ₂ , the date data (hereinafter referred to as DA) in the data memory area DM indicated by the page pointer P is stored in the BUF1 and the current time (hereinafter referred to as BT) is stored in the BUF2. Then, if the year data of the date data stored in BUF1 is a leap year, the leap year flag UF ₁ is set to “1”. Further, the year of the current time stored in BUF2 is if leap year, leap years flag UF _2, the following year the current time is set to "1" leap year flag UF ₃ if leap year.
The leap year flag UF is used to determine whether the date data or the current time in the subsequent steps is a leap year.
_This is done by examining ₁ , UF ₂ and UF ₃ . Leap year UF ₁ , UF
₂ and UF ₃ are in the “1” on state. Next, in step f ₃ , the current time BT and the date data DA are compared, and if the date (year, month, day) of the date data DA is later than the date (year, month, day) of the current time BT, Current time BT in BUF1 in step f ₄
And stores the date data DA to step f ₅ in BUF2, set in the future flag F "1" in step f _6, proceeds to step f _7. On the other hand, in step f ₃ above, the date (year,
Month, day) the date of the current time BT (year, month, day) than the process proceeds to step f ₇ if it is past. Then, in step f ₇ , the year data in BUF 2 is stored in the register Z, and
In f _8, the value of the register Z, pulling the year data in BUF1, stores the determined value again in register Z. Therefore, if the date data DA is past data in the register Z, the number of elapsed years [current time BT (year) -date data DA
(Year)] is stored. Then BUF1 date (month, day) in step f ₉ and performs a comparison of the date of BUF2 (month, day), BUF1
(Month, day) performs a number of days conversion process to convert the total number of days from BUF2 (month, day) Date of in step f ₁₀ if also a past than BUF1 and BUF2 (month, day) January 1, The total number of days (x) from January 1 of the date data in BUF2 and the total number of days (y) from January 1 of the date data in BUF1 are calculated. Then, in steps f ₁₁ and f ₁₂ , the provisional calculation of the elapsed days (x
-Y) is performed, and the temporary elapsed days (x-
y) is stored. Then the temporary calculated the number of days remaining year in step _{f 12, f 13 (365-} X) is carried out, stored in the register Y provisional days remaining (365-X) is the value of y in step f ₁₄ 60 whether or not smaller than the value (that is, the date of the date data DA is whether or not it is February 28 or earlier) examined, is less if (if February 28 days earlier) year in step f ₁₅ BUF2 Find out if it is a leap year. And the leap year (leap year flag UF
₂ is on), the value of register Y is set to 1 in step f _16.
To increase. That is, if the year of BUF2 is a leap year, this year will be 36
Since there are 6 days and the number of remaining days is 366-X, step f ₁₁
The value of the register Y (365-X) obtained in step 1 is incremented by 1 and the correct remaining number of days (366-X) is stored in the register Y.

On the other hand, in the above step f _15, if it is not a leap year Next, in step f _17, examine whether it is the empty page year data is not set to "FFFF" That year data of date data DA, if the empty page data , elapsed years, since none of the age and the remaining number of days is not necessary to be displayed, step f _18, f
_19, f ₂₀ in register Y, X, sets the value of "FFF" to Z.

If the year data of the date data DA is set in the above step f ₁₇ , whether the future flag F is set in the step f ₂₀ (the year data of the date data DA is later than the current time BT (year)). If it is set, the above steps f ₁₉ and f ₂₀ are performed. That is, if the date data DA is past data than the present, the number of years elapsed, the number of days elapsed, and the number of remaining days until the nearest future same-day date (month, day) are calculated, and the date data DA is more future than the present. Since it is not necessary to display the number of years and the number of days elapsed in the case of the data of No., it is necessary to display "---" in the number of years and the number of days elapsed in the days display mode as shown in Fig. 5 (b). Set the value of “FFF” in registers Z and X to.

On the other hand, in the above step f _3, the date data DA date (year,
Month, day) assigns the value of the date of the current time BT (year, month, day) and if there is a match, the register Y in step f ₂₁ "0",
Performs processing subsequent step f _19, f ₂₀ described above, the number of days remaining display column of days display mode as shown in FIG. 5 (c) is "000" is displayed, the elapsed years, the number of days display field "-
"-" Is displayed.

In addition, in the above step f _9, the date of the BUF1 (month, day) BUF2
Date (month, day) if a match is, the register X in step f _22, f _23, sets the value of "000" to Y, continue processing after the f _17. As a result, in the number of days display mode, as shown in FIG. 5 (e), the predetermined number of years is displayed only in the number of years elapsed, and "000" is displayed in the number of days elapsed and remaining days display column.

In addition, in the above step f _9, the date of BUF2 (month, day) BUF1
If it is later than the date of, register Z in step f ₂₄
Is subtracted by 1 to correct the elapsed years, and the correct elapsed years value is set in the register Z. Then step f ₂₅
In The same day the conversion processing in step f _10, in the register Y in step f _26, f _27, and stores the value of the remaining number of days (y-x), age in the register X in step f _28, f ₂₉ 〔3
65- (y-x)] value is stored. And step f
The date of ₃₀ in BUF1 (month, day) whether the February 28 days earlier, in step f _31, examine whether the year of BUF1 is a leap year (leap year flag UF ₁ is on), February 28, days before in and year BUF1 moves to step f ₁₇ if not a leap year. Also, 2
If it is before 28th month and the year of BUF1 is a leap year, step
Correction of elapsed days at f ₃₂ (increase register X by 1)
Was carried out, and stores the value of the correct age to register X, continues the process after step f ₁₇ described above.

On the other hand, if at a later date February 28th date BUF1 in step f _30, in step f ₃₃ BUF2 is checked whether leap year (leap year flag UF ₂ is ON, in step f ₃₄ if leap year BUF
Examine 1 year is whether a leap year (leap flag UF ₁ is turned on), the number of days remaining correction (1 increase the remaining number of days) in step f ₃₅ if not a leap year, without any if leap year, above perform the step f ₃₁ and subsequent processing.

On the other hand, in step f ₃₃ BUF2 (year) is leap year (leap year flag UF ₂
Above but examined whether the year of if it is not turned on in step f ₃₆ BUF1 is a leap year, performs a correction of the remaining number of days (1 reduces the number of days remaining) in step f ₃₇ if it is a leap year, without doing anything if it is not a leap year perform the step f ₃₁ and subsequent processing. That is, BUF
When 1 (month, day) is larger than the date (month, day) of BUF2, the following corrections are made.

(A) If the date (month, day) of BUF1 is before February 28, and the year of BUF1 is a leap year, then the number of elapsed days = 365- (y-x) +1 = 366- (y-x) Become.

(B) If the date (month, day) of BUF1 is a date later than February 28 and is not a leap year, and the year of BUF2 is not a leap year, the number of remaining days is the number of remaining days = y−x + 1.

(C) If the date (month, day) of BUF1 is later than February 28 and is a leap year, and the year of BUF2 is not a leap year, the number of remaining days is y−x−1.

On the other hand, in the above step f _14, the date of the BUF1 (month, day) 2
If later a than the moon 28 days, see if in step f ₃₈ BUF2 (year) is a leap year (leap year flag UF ₂ is turned on), the year is a leap year (leap year flag U in step f ₃₉ if leap year BUF1
Check if F ₁ is on). Then, if the year of BUF1 is leap year, the correction of the number of days remaining in step f ₄₀ a (1 increments the value of the register Y), corrects the age (1 subtracts the value of register X) in step f _41.

In addition, in the above step f _38, if it is not BUF2 (year) is a leap year, examined whether in step f ₄₂ years of BUF1 is a leap year, performs a correction of the number of days elapsed in step f ₄₃ if it is a leap year, step f _{At 44} , it is checked whether the year following BUF2 (year) is a leap year (leap year flag UF ₃ is on). And BUF2
In the following year (year) it is not a leap year, (the value of the register Y 1 subtraction) Correction of days remaining performed in step f _45, performs the processes in and after step f ₁₇ described above.

On the other hand, in step f _42, in the year of BUF1 it is leap year (leap year flag UF ₁ is on) unless step f _46, next year BUF2 (years) it is checked whether a leap year (leap year flag UF ₃ is on) if a leap year, (the value of the register Y 1 increase) correction of the remaining number of days performed at step f _47, step f ₁₇ described above
Perform the following processing.

That is, the date (month, day) of BUF2 is the date (month, day) of BUF1
If the date is larger than the date and the date of the date data is later than February 28, the following correction process is performed.

(A) If BUF2 (year) is a leap year and BUF1 (year) is not a leap year, remaining days = 365− (x−y) + 1 = 366− (x−y) Elapsed days = (x−y) − 1 = x−y−1.

(B) If BUF2 (year) is not a leap year and BUF1 (year) is a leap year, the number of elapsed days = (x−y) + 1 = x−y + 1.

(C) If BUF1 (year) is a leap year and the year following BUF2 (year) is not a leap year, the number of remaining days is 365− (x−y) −1 = 364− (x−y).

(D) If BUF1 (year) is not a leap year and the year following BUF2 (year) is a leap year, the number of remaining days is 365− (x−y) + 1 = 366− (x−y).

Above such as, day count process is performed in step c _42, on the basis of the calculation results obtained in step c _42, step c
_{In 43} , when the date data DA is in the future (including the case of the same day date), only the remaining days are shown. In the past, the remaining days and the elapsed years and the elapsed days are shown in FIGS. 5 (b) and (c). ),
As shown in the display examples of (d) and (e), it is displayed in the days display mode (L = 1). When the date data DA is not set, that is, when the page is blank, the remaining days, elapsed years, and elapsed days are all “----” as shown in FIG. 5 (a).
Is displayed.

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

In addition, although a specific example applied to an electronic wristwatch has been described in the present embodiment, it may be a table-type table clock or the like, and can also be applied to a small electronic device such as a small electronic calculator, and further to an IC card or the like. Can also be incorporated.

[Effect of device]

According to the present invention, date information including years such as anniversaries is stored, and the number of elapsed days is calculated using date data including the years up to the current date, and the number of remaining days is calculated regardless of the year. Since the calculation is performed using only the date data of the day and the day, not only the elapsed years from the anniversary, the number of days, etc. can be immediately known, but also the number of days left until the anniversary can be known.

[Brief description of drawings]

1 (a) is an external view of an electronic wrist watch to which an embodiment of the present invention is applied, FIG. 1 (b) is a view showing a display surface of a display unit 2 of the electronic wrist watch, and FIG. 2 is the same embodiment. FIG. 3 is a block diagram showing the internal circuit of FIG. 3, FIG. 3 is a diagram showing the internal configuration of the RAM 5 in the block diagram, and FIGS. 4 and 5 (a) to (e) are diagrams showing various modes displayed on the display unit 2. FIG. 6 shows a display state, FIG. 6 is a flow chart showing the overall processing operation of the same embodiment, FIG. 7 is a flow chart showing the details of the timing processing of FIG. 6, and FIGS. 8 (a) and 8 (b) are FIG. 6 is a flowchart showing details of the key processing, FIG. 9 is a flowchart showing details of the normalization processing shown in FIG. 8 (a), and FIG. 10 is details of the number-of-days calculation processing shown in FIG. 8 (b). It is a flowchart showing. 2 ... Display part, 2a ... Display body, 3 ... ROM, 5 ... RAM,
7 ... Arithmetic circuit, 9 ... Oscillator, 12 ... Dividing circuit, T ...
… Current time register, DM …… Data memo area.

Claims (1)

[Scope of utility model registration request] 1. A reference clock signal is counted, and the year, month, day,
Timekeeping means for obtaining current time data consisting of hours and minutes, input means for inputting set time data consisting of year, month, day, hour, and minute, and set time data for storing a plurality of set time data input by this input means Storage means, specifying means for specifying one of the plurality of set time data stored in the set time data storage means, and when one of the plurality of set time data is specified by the specifying means The operation switch means to be operated, and the first time difference including the year from the set time data designated by the designation means to the current time data obtained by the timekeeping means by the operation of the operation switch means and the timekeeping. Calculating means for calculating both the second number of days difference from the month and day of the current time obtained by the means to the month and day of the set time data designated by the designating means; Date data storage apparatus characterized by comprising: a display means for displaying the first and second days difference obtained by the calculating means.