JPH0368424B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a day/date calculation method for small electronic calculators, etc.

2. Description of the Related Art Compact electronic calculators that are capable of calculating days and dates, ie, date-date = number of days, and date±number of days = date, have been proposed. However, with conventional calculators of this type, it is not possible to perform calculations that take specific days such as Sundays and holidays into account. I had the inconvenience of not being able to plan my work schedule based on the actual number of days because holidays were involved.

Therefore, the applicant has developed an electronic calculator (Japanese Unexamined Patent Application Publication No. 1983-1989) that can calculate the number of days excluding Sundays and holidays.
No. 87727), but this application was inconvenient because it could not be applied to calculating the number of working days of a person who has weekdays off.

This invention was made in view of the above-mentioned circumstances, and its purpose is to calculate the number of days of a date - date = number of days, or the number of days of a date + number of days = a date, without being limited to Sundays or holidays. It is an object of the present invention to provide a day number/date calculation method capable of performing day number calculation or date calculation to obtain a substantially true number of days or date by taking into account specific days of the week such as weekdays.

Hereinafter, one embodiment of the present invention shown in the drawings will be specifically described. FIG. 1 is a schematic circuit diagram of a small electronic calculator. Reference numeral 1 in the figure denotes a key input section, which includes not only a numeric keypad 1A and a function key 1B provided in a normal small electronic calculator, but also a day/date input key 1C in this embodiment. (DT), day of the week input key 1D
(days of the week) are set for each day. The input signals of each of the above keys are sent to the control unit 2 via the bus line B1, and the date and time output from the numeric keypad 1A are
Numerical data such as the number of days is sent to the gate circuit 3 via the bus line B2. This gate circuit 3 is controlled to open and close according to a gate opening/closing signal input from the control unit 2 via a bus line B3, and output data is sent to a RAM (random access memory) via bus lines _B41 to _B47 . 4 to the specified register. The RAM 4 has an A register, a B register, . . . an F register, and an X register in the row direction. In this embodiment, the A to F and X registers of the RAM 4 are used to store data during day calculations and date calculations, but of course they are also used when the computer performs normal calculations. In addition,
Various registers of the RAM 4 perform read or write operations in accordance with read/write commands output from the control section 2. The data read from each register of RAM4 is transferred to the corresponding bus line.
It is sent to the gate circuit 5 via _B51 to _B57 . This gate circuit 5 is controlled to open and close in accordance with a gate opening/closing command inputted from the control unit 2 via the bus line B ₆ , and sends output data to the bus lines B ₇₁ and B ₇₂ .
is transferred to the number of days/date calculation unit 6 via
The data are transferred to the arithmetic unit 7 via bus lines B ₇₃ and B ₇₄ and to the display unit 8 via bus line B ₇₅ , respectively. The number of days/date calculation unit 6 receives calculation instructions from the control unit 2.
OP ₁ calculates the number of days and dates (including days of the week).For example, it has a built-in calendar from the 1900s, and the reference date (for example, Tuesday, March 1, 1900).
Calculation of the number of days and date is performed based on the reference number of days from , and the resulting data D ₁ is supplied to the gate circuit 3 . In addition, the calculation unit 7 receives calculation instructions from the control unit 2.
The four normal arithmetic operations are executed by OP ₂ , and the progress data D ₂ is supplied to the gate circuit 3, and a judgment signal J is outputted and given to the control section 2.

The control unit 2 has fixedly stored control programs necessary for executing various calculations as a calculator, date calculations, and number of days calculations, and the key input unit 1
Input the key input signals etc. from
It outputs various control signals such as OP ₁ , OP ₂ and gate opening/closing commands, and also provides a code generation command to the code storage section 9 via the bus line B8. This code storage section 9 stores codes of numerical values 0 to 9, blanking codes, etc., and generates a predetermined code in response to a code generation command from the control section 2, and supplies it to the gate circuit 5 via the bus line B9. It is something to do.

Next, the operation of the small electronic calculator configured as described above when performing day/date calculations will be described. First, with reference to Figures 2 and 3, the operation of calculating the number of days (date - date = days), for example,
The calculation for calculating the number of days excluding Wednesdays from November 3, 1981 to November 15, 1981 will be explained. In this case, numeric keypad 1A, number of days/date input key 1C,
Using the day of the week input keys 1D, as shown in FIG. 3, operate 81DT11DT15DT-81DT11DT3DT3 Day of the week=. In this case, the days of the week are assumed to be input from Sunday to Saturday, corresponding to the numerical values 0 to 6. In this case, input "3" corresponding to Wednesday.

As a result, the process of the flowchart shown in FIG. 2 is executed. First, in step S1, the first
An operation is performed in which the date data is stored in the A register, the second date data is stored in the B register, and the specific day of the week data is stored in the X register. In this case, the first date data and the second date data are determined in the order in which they were input. During the execution of step S1, the contents of the various registers in the RAM 4 become as shown in FIG. 3. In addition, A register, B register
The date data stored in the register is year and year respectively.
A separator code is inserted between the month and day. In addition, if a specific day of the week is not specified,
It is assumed that a blanking code is input to the register. At step S1, a blanking code is simultaneously input to the C register for initialization.
Next, the process proceeds to step S2, where the date data "81-11-15" in the A register and the date data "81-11-3" in the B register are read out and supplied to the number of days/date calculation unit 6. Then, the number of days/date calculation section 6 calculates the number of days existing between the date in the A register and the date in the B register, and this number of days data is transferred to the C register as data _D1 . In this case, the number of days/date calculation unit 6 receives the first input
and the second date data as the base date "March 1, 1900"
The converted number of days data are subtracted from each other to obtain the number of days between the first and second dates, and the data is stored in the C register. As a result, the number of days between the first and second dates data "12" is stored in the C register as shown in FIG. 3. Then, the process proceeds to the next step S3, where the data in the X register is read out, and the arithmetic unit 7 determines whether the data in the X register is day of the week data. In this case, the blanking code is stored in the X register unless a specific day of the week is specified, but at the moment the day of the week data "3" for Wednesday is stored in the X register, so
If the determination is ``YES'', the process proceeds to the next step S4. In this step S4, the second date data "81-11-3" stored in the B register is supplied to the days/date calculation unit 6, and the day of the week of this date data is set to the reference date (March 1, 1900). [Tue]) and transferred to the D register. In this case, the second
Since the day of the week of the date is "Tuesday", "2" is stored in the D register as shown in FIG. 3. Next, the process proceeds to step S5. In this step S5 and the next step S6, which side of the specific day of the week does the second date (starting day) fall within the area before or after the starting day of the week on Sunday or Saturday? It is determined whether there is In other words, in step S5, the day of the week data "2" in the D register is subtracted from the day of the week data "3" in the X register, and the resulting data is transferred to the E register. And the next step
In S6, it is determined whether the contents of the E register are positive or negative, and if it is determined that E≦0, the process advances to the next step S7, and the process of adding "7" to the contents of the E register is executed. The number of days from the starting day of the week to a specific day of the week is calculated. In this case, E
Since "1" is stored in the register, E>
0, and the process advances to the next step S8. In this step S8, the number of days data "1" in the E register is subtracted from the number of days data "12" in the C register, and the subtracted data "11" is transferred to the E register. As a result, the number of days data "11" is stored in the E register as shown in FIG.
In S9, the number of days to be divided by "7" is calculated. Next, proceed to step S9, divide the number of days in the E register by "7", and add +1 to this division result.
Then, this result data is transferred to the F register, and it is determined how many specific days of the week there are in the relevant number of days. Here, "+1" is for adding the first specific date. In this case, in step S9, "11÷7+1=
2.5714285" is executed, so the calculation shown in Figure 3.7
As shown in the figure, "2.5714285" is stored in the F register. Next, the process advances to step S10, where the decimal part of the data in the F register is cleared, and the contents of the F register become "2" as shown in FIG. 38. Next, the process advances to step S11, and the contents of the F register, that is, the first date and the second date, are converted from the contents of the C register.
The number of days of the specific day of the week that exists during that time is subtracted from the number of days between this date and the resulting data is transferred to the C register. In this case, step S11 is 12−
Since the calculation of 2=10 is executed, "10" is stored in the C register as shown in FIG. 38. The contents of this C register are displayed on the display 8 in the next step S12.
"10" is digitally displayed as shown in FIG. 3. The number of days "10" obtained in this way is the number of days excluding Wednesdays from November 3, 1981 to November 15, 1981, and is, for example, the number of working days for a person whose holiday is Wednesday.

On the other hand, if the blanking code is stored in the X register in step S3 above, the number of specific days of the week existing between the days is subtracted from the number of days by simply calculating date - date = number of days. Since it is not a calculation, the steps start from step S3.
Proceeding to S12, the number of days obtained by date - date = number of days is displayed as is.

Next, set the date calculation operation for date ± number of days = date to the fourth
With reference to FIG. 5 and FIG. 5, an operation for determining, for example, the date 20 days after November 4, 1981, excluding Fridays, will be explained. In this case, numeric keypad 1A,
Function key 1B, number of days/date input key 1
C. Using the day of the week input keys 1D, perform the following operations as shown in FIG. As a result, the process of the flowchart shown in FIG. 4 is executed. First, in the first step S21 and the next step S22, processing similar to steps S1 and S3 in FIG. 2 is executed. In this case, as shown in Figure 5 2, the A register contains the starting date data, the B register contains the number of days "20", and
Data for a specific day of the week is stored in the register. If no specific day of the week is specified, a blanking code is input to the X register. On the other hand, the C register is initialized by inputting a blanking code.
In step S22, if a blanking code is stored in the X register and no day of the week has been designated, the process advances to step S24. In this case, as "5" (Friday) is stored in the X register as shown in FIG. ) is calculated by the days/date calculation unit 6,
This "3" is transferred to the D register as shown in FIG. In the next step S25, date ± number of days =
In date calculations, it is determined whether the number of days is added or subtracted. That is, after inputting the number of days "20", it is determined whether the + key or the - key of the function key 1B is operated. This key operation judgment is
This is performed according to the storage of a flag (not shown). Therefore, in the case of addition, step S26 is executed,
In the case of subtraction, step S27 is executed. Steps S26 and S27 are to find the number of days of the difference between the specific day of the week in the '', and in step S27 executes ``D-X'' and transfers the resulting data to the E register. In this case, the number of days is "20"
Since this is a case of adding , step S26 is executed and "5-3=2" is executed, and "2" is stored in the E register as shown in FIG. Next, steps S28 to S32 are sequentially executed.
These steps S28 to S32 are the same as steps S6 to S10 in FIG. 2 described above, so their explanation will be omitted. In this case, the number of days data in step S8 corresponds to the B register in step S30. As a result, in this case, the content of the E register becomes "18" as shown in FIG. 5 by executing step S30, and the content of the F register becomes "3.5714285" as shown in FIG. ”,
Further, by executing step S32, the contents of the F register become "3" as shown in FIG. 5.

Next, proceed to step S33, and step S33 or
S35 is executed sequentially. This step S33 or
S35 is a process of detecting whether or not a specific day of the week is further included when the number of days of the specific week in the F register and the number of days in the B register are added. That is, in step S33, it is determined whether the contents of the F register are equal to the contents of the C register, but initially (before executing the next step S34), the contents of the C register are blanking codes. Since it is not equal to the contents of the F register and F≠C, the process advances to the next step S34, and the contents of the F register are transferred to the C register. Next, step S35 is executed, and a value obtained by adding the contents of the E register and the contents of the F register is input to the E register. Thereby, the number of days obtained by adding the number of days between the specific day of the week and the starting day of the week and the specific day of the week is stored in the E register. Then, in order to divide the number of days in the E register by "7" again, the process returns to step S31 described above and steps S31 to S33 are sequentially executed. In this case, if the number of days on the specific weekday increases by one day, "NO" is determined in step S33, and the above-mentioned steps S31 to S35 are repeatedly executed until F=C, but if the number of days on the specific weekday does not increase, , it is judged as "YES" in step S33, and the next step S36
Proceed to execution. In this case, the content of the C register becomes "3" in step S34 as shown in FIG.
21'' is calculated, and the contents of the E register become ``21'' as shown in FIG. 5. And step S31
Returning to , "21/7 + 1 = 4" is calculated, so
The contents of the F register are "4" as shown in FIG. 5 and 10. In this case, the number of days on the specific weekday has increased by one day, so step S33 is determined to be "NO".
Step S34 is executed. As a result, the contents of the C register become "4" as shown in FIG. 5. Then, proceed to step S35 and get "21+4=25"
is calculated, and the contents of the E register become "25" as shown in FIG. 5. Then, by executing step S31, "25/7+1=4.5714285" is obtained, so the contents of the F register become as shown in FIG.
As shown in FIG. 14, it becomes "4" and matches the contents of the C register. As a result, the step
The process proceeds from S33 to execution of step S36.

In step S36, the contents of the F register are added to the contents of the B register, and the resulting data is transferred to the F register. In this case, F
The contents of the register are as shown in FIG.
"20+4=24". And the next step
In S37, the same judgment as in step S25 described above is performed, and if the calculation of date ± number of days is addition, the process proceeds to step S38, and if it is subtraction, the process proceeds to step S38.
Proceed to S39. Steps S38 and S39 calculate the date before or after the date in the A register by the number of days in the F register, and transfer this date to the C register. In other words, convert the date in the A register to the number of days from the reference date "March 1, 1900", add or subtract the number of days in the F register from this number of days, and convert the resulting number of days to the date. It is executed by calculating backwards. In this case, since the calculation of the date ± number of days is addition, step S38 is executed, and the contents of the C register are
As shown in Figure 16, it is "November 28, 1981". The contents of this register are then sent to the display section 8 in the next step S40 and displayed as shown in FIG. 517. The date thus obtained is 1981
This is the calculated date 20 days after November 4th, excluding Fridays, and is the actual number of days excluding Fridays.

On the other hand, if a blanking code is stored in the X register in step S22 above, the calculation to calculate the date by excluding a specific day of the week from the date as described above is not a simple calculation of date ± number of days = date. Therefore, the process proceeds from step S22 to step S24, and after executing the process of transferring the contents of the B register to the F register, the process proceeds to step S36.
Similar processing is executed thereafter.

Note that in the above embodiment, the year that can be calculated is the 1900s, but the range of this year is of course arbitrary. Furthermore, although the present invention has been applied to a small electronic calculator, it can also be applied to an electronic watch with a calculation function.

As explained in detail above, this invention provides the number of days by specifying the day of the week desired by the user and excluding this specific day when calculating the number of days for date - date = days and when calculating the number of days for date ± number of days = date. Since the present invention is configured to calculate dates, it is possible to obtain the actual number of days and dates, and it is possible to schedule work more effectively than with conventional systems. Since the days of the week that can be specified are not limited to Sundays and holidays, but can be any day of the week, it is convenient for people who have weekdays off.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention; Fig. 1 is a system configuration diagram of a small electronic calculator to which the invention is applied; Fig. 2 is a flowchart showing the operation of calculating the number of days; and Fig. 3 is a diagram showing the operation of the calculation. State diagrams of various registers that change accordingly and display state diagrams of the same operation results,
Figure 4 is a flowchart showing the operation of date calculation.
FIG. 5 is a state diagram of various registers that change according to the same calculation operation, and a display state diagram of the same calculation result. 1...Key input section, 1A...Numeric keypad, 1B...
...Function key, 1C...Number of days/date input key, 1D...Day of the week input key, 2...Control unit, 4
...RAM, 6...day/date calculation section, 7... calculation section.

[Claims]

1. A hand scanner having a built-in light emitting element and a secondary battery for driving the light emitting element, and a holder part to which the hand scanner is mounted and having a light receiving element and a power supply part for supplying power to the hand scanner, When attached to the holder part, the hand scanner receives power supply from the power supply part of the holder part, charges a secondary battery, and causes the light receiving element of the holder part to receive an optical signal from a light emitting element of the hand scanner. 1. A data transmitting/receiving device characterized in that data is transmitted and received using the same method.

Claims (1)

A small electronic device equipped with a date calculation function.