JPS63165993A - Time corrector for timepiece-built in type electronic equipment - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a time correction system for electronic equipment with a built-in clock, such as electronic cash registers and word processors.

[Prior Art] Some electronic devices such as electronic cash registers and word processors have built-in clock circuits for counting time data such as year, month, day, hour, minute, and second. In the case of electronic cash registers, by printing time data on receipts and journals when registering product sales data, customers can know the time of shopping from the receipt, and stores can track sales from the journal data. You can know the changing time zone, etc.

By the way, in the United States and European countries, for example, there is a system called daylight saving time in which standard time is intentionally advanced by about one hour by law, etc., for the purpose of making effective use of daylight hours. In these countries, operators of the electronic devices with built-in clocks mentioned above had to perform complicated operations to correct the time data inside the electronic devices during daylight saving time to cope with changes in standard time. .

[Problems to be Solved by the Invention] However, although the standard time is generally changed late at night, the time data of electronic devices is often corrected the next morning. Therefore, there is a risk that the operator may forget to correct the time data, resulting in printing or displaying the wrong time. In addition, when using such electronic equipment 24 hours a day, it is necessary to temporarily suspend normal business operations in response to changes in standard time and then perform complicated operations to correct the time, which poses problems. Met.

Therefore, the present invention is capable of self-correcting time data easily and reliably in response to a conscious change in the current time.1 There is no risk of interfering with normal work, and the operator's labor is reduced and operability is improved. An object of the present invention is to provide a time correction device for an electronic device with a built-in clock that can be measured.

[Means for solving the problem] As shown in FIG. a time storage area 4 for storing start time, end time, and correction time; a time data memory 5 for reading and storing the contents of the time data section 1 at predetermined time intervals; and a time counted by the time data section 1. A correction period flag 6 indicating whether or not the data is in the correction period by time correction processing is provided, and if the comparison means 7 determines that the time data is not in the correction period based on the state of the correction period flag 6, the contents of the time data memory 5 are provided. is compared with the start time data in the time storage area 4, and if the time data is in the correction period, the contents of the time data memory 5 are compared with the end time data in the time storage area 4, and the contents of the time data memory 5 are determined. If it matches the start time data or the end time data, the time correction means 8 corrects the contents of the time data memory 5 based on the corrected time data in the time storage area 4, and the corrected contents 5 of the time data memory is set in the time data section 1 by the correction time setting means 9.

[Function] By taking such measures, the current time data counted in the time data section is automatically corrected by the correction time when the start time of the time correction process is reached, and the current time data counted in the time data section is automatically corrected by the correction time when the start time of the time correction process is reached. The time will then be returned to the original standard time.

[Embodiment] An embodiment in which the present invention is applied to an electronic cash register with a built-in clock will be described below.

FIG. 2 is a block diagram showing the functional configuration of the electronic cash register of this embodiment. In the same figure, CPtJl
l has a built-in arD circuit, memory control circuit, etc., and performs predetermined calculations based on various input information, and
A ROM 14 that stores fixed data such as various arithmetic processing programs via the pass line 12 and the control aom 13, and a RAM that stores variable data such as arithmetic processing data.
15. Also, a keyboard controller 17 for inputting key signals from the keyboard 16 for inputting the sales amount of the product, the number of items sold, etc., and the sales amount 1 of the product.
A display controller 19 that drives a display 18 for displaying the total amount, etc. to display characters corresponding to display data, a print controller 21 and a clock circuit 22 that drive and control a printer 20 that prints on receipts and journals, etc. is connected to the CPU 11 via the pass line 12 and the controller t111113.

Here, the clock circuit 22 has a time data section 23 that stores time data, such as year, month, date, hour, minute, and second, and the time data in this time data aB23 is counted up by the clock circuit 22, for example, in 1 second intervals. Ru. That is, the time data stored in the time data section 23 becomes current time data.

In addition to the memory for registering product sales data, the RAM 15 also includes a start period setting area for setting the start time of time correction processing such as daylight saving time, which intentionally corrects one quasi-time, as shown in FIG. 31. End time setting area 32 for setting the end time of the above time correction process, correction time setting area 33 for setting the direction in which the correction time advances relative to standard time as positive, when the vIE correction process is in execution period such as daylight saving time. Correction period flag 3 set to
4, and a time data memory 35 for storing time data read out, for example, every second from the time data section 23 of the clock circuit 22.

When predetermined time data is set in each of the setting areas 31 to 33 by operating a predetermined key on the keyboard 16, the CPLJll performs interrupt processing according to the program stored in the ROM 14 in the procedure shown in FIG. is configured to do so. Note that this interrupt processing requires 1
It is assumed that this is performed once every second. That is, ST
As I, the clock circuit 22 reads out the current time data counted up in the time data section 23 and stores it in the RAM.
15 is stored in the time data memory 35.

Next, in ST2, it is determined whether the correction period flag 34 is set, that is, whether the current time is the time when the standard time is corrected. Here, if the correction period flag 34 is reset, that is, if the standard time is not corrected, the current time data stored in the time data memory 35 is set in the start time setting area 31 as ST3. Compare with start time data. If the two time data do not match, the conventional clock interrupt processing and subsequent processing are executed as normal processing.

On the other hand, if the current time data and the start time data match, time correction is performed by adding the correction time set in the correction time setting area 33 to the current time data in the time data memory 35, and after the correction The time data is transferred to the time data section 23 in the clock circuit 22, and the contents of the time data section 23 are rewritten. Thereafter, the correction period flag 34 is set, and the process shifts to normal processing.

In addition, when the correction period flag 34 is set, that is, when the standard time is being corrected, the current time data stored in the time data memory 35 is transferred to the end time set in the end time setting area 32 as ST4. Compare with time data. If the two time data do not match, normal processing is executed.

On the other hand, if the current time data and end time data match, the current time data in the time data memory 35 is subtracted by the bride's time set in the modified time setting area 33 and the standard time is set. The corrected time data is transferred to the time data section 23 in the clock circuit 22, and the contents of the time data section 23 are rewritten. Thereafter, the correction period flag 34 is reset and the process shifts to normal processing.

When opening a store with an electronic cash register having such a configuration, when the time approaches when the standard time will be intentionally changed, such as during daylight saving time, the start time in the RAM 15 can be changed by operating a predetermined key on the keyboard 16. Setting area 31, ilF end opening time setting area 32
The time data corresponding to the hour setting area 33 (
For example, in setting area 31, May 1st 2:00 AM OO minutes OO
3:00:00 a.m. on September 1st in setting area 32.

In the setting area 33, 1 hour OO minutes OO seconds) is set.

Then, by the action of the CPU 11, the current time data counted in the time data section 23 and the time data in the start time setting area 31 are first compared, and if they match, the current time data is transferred to the corrected time setting area. The data is advanced by 33 time data and set in the time data section 23. Thereafter, the current time data counted in the time data section 23 and the time data in the end time setting area 32 are compared until they match, and if they match, the current time data is transferred to the finish time setting area 32. It is set in the time data section 23 after being delayed by the time data of .

As described above, according to the electronic cash register of this embodiment, by simply setting predetermined time data in advance, the current time can be automatically and accurately changed when there is a conscious time change such as daylight saving time. Data correction is performed. Therefore, there is no need to perform complicated time correction operations, and problems such as forgetting time correction and using incorrect time data can be prevented. In addition, time correction is performed at almost the same time as the current time is changed, and is also performed by time-based interrupt processing, so even in stores that use electronic cash registers 24 hours a day, other processes such as registration and cash registers can be There is no risk of disrupting business operations. In this way, the operability is improved and the operator's labor can be reduced.

Note that the present invention is not limited to the above embodiments.

For example, in the embodiment described above, the present invention is applied to an electronic cash register, but it is of course applicable to any electronic time processor having a clock function, such as a word processor or a personal computer. Further, in the above embodiment, the setting areas 31 to 33 for setting the start time data, end time data, and last hour time data of the time correction process are stored in the RAM 1.
Although the case where it is formed in ROM 14 or RA
The above time data may be stored as a fixed value in the program stored in M15.

It goes without saying that various other modifications can be made without departing from the spirit of the invention.

[Effects of the Invention] As detailed above, according to the present invention, conscious current I
! An electronic separate time device with a built-in clock that can easily and reliably correct time data automatically in response to a single change, without the risk of interfering with normal operations, reducing operator labor and improving operability. A correction device can be provided.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the functional configuration of a time correction device of the present invention, and FIGS. 2 to 4 are diagrams showing an embodiment in which the present invention is applied to an electronic cash register. FIG. 3 is a functional block diagram of the electronic cash register, FIG. 3 is a diagram showing the main part of the configuration of the RAM, and FIG. 4 is a flowchart showing the clock interrupt processing procedure in CPtJ. 11...CPU, 14...ROM, 15...RA
M, 16... Keyboard, 18... Display, 20.
... Printer, 22 ... Clock circuit, 23 ... Time data section, 31 ... Start time setting area, 32 ... End time setting area, 33 ... Correction time setting area, 3
4... Correction period flag, 35... Time data memory. Applicant's agent Patent attorney Takehiko Suzue Figure 1

Claims (1)

[Claims] In an electronic device that has a built-in clock circuit that counts time data stored in a time data section, a time storage area that stores the start time, end time, and correction time of time correction processing, and a predetermined content of the time data section are provided. A time data memory that is read out and stored at time intervals, a correction period flag that indicates whether or not the time data counted in the time data section is in a correction period by time correction processing, If the data is not in the correction period, the contents of the time data memory are compared with the start time data in the time storage area, and if the correction period flag indicates that the time data is in the correction period, the contents of the time data memory are compared to the start time data in the time storage area. and a comparison means for comparing the contents of the time data memory with the end time data in the time storage area, and when the contents of the time data memory match the start time data or the end time data by the comparison means, the contents of the time data memory are corrected based on the corrected time data in the time storage area. 1. A time correction device for an electronic device with a built-in clock, comprising: a time correction means for correcting the time; and a correction time setting means for setting the contents of a time data memory corrected by the time correction means in the time data section.