JPS594351Y2 - cash register machine - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a cash register equipped with a check function.

Conventional cash registers did not have a verification function, so when registering a large number of entries, check the calculation results of the number data for each entry using a calculator or solo pan to make sure there are no errors. From there, the calculation results were transferred to the totalizer and added and registered.

For this reason, a calculator, a solopan, etc. other than the cash register were required, and the handling was inconvenient.

The present invention was developed in view of the above-mentioned points, and is designed to provide a check function to the cash register itself, eliminating the need for a calculator or a solo pan, and making handling easier.

That is, a verification register coupled to an arithmetic register for storing the first calculation result, a verification key for transferring the memory contents of the arithmetic register to this verification register, and a first verification register of the verification register. A comparator is provided to compare the first calculation result and the second calculation result stored in the calculation register at the time of verification, and when the comparison output of this comparator is equal, the calculation result is transferred to the summator using the output. This allows for additional registration.

Hereinafter, one embodiment of the present invention will be described based on the drawings.

FIG. 1 shows a keyboard 1 of a cash register, which includes a number key 2 consisting of numerical keys "00", "0", "1" to "9", a correction key 3, and a cancellation key 4. , an addition key 5, a subtraction key 6, a subject key 7°8.9.10, and a verification key 11 for further understanding the purpose of the present invention.

FIG. 2 is a block diagram showing the present invention, and in this figure,
The same parts as in FIG. 1 are represented by the same symbols.

A numeric register 12, a first adder 13, and an arithmetic register 14 are sequentially connected to the numeric key 2, and numeric data input from the numeric key 2 is input to the numeric register 14 by a signal from the addition key 5. It is configured to add to the stored contents and store the result of the calculation in the calculation register 14.

The arithmetic register 14 is connected to summators 16, 17, 18, and 19 via a second adder 15, and the contents stored in the arithmetic register 14 are added to the summator 16, 17, 18, and 19 by the comparison output "1" of a comparator 20, which will be described later. It is configured to transfer and add to any of 17, 18, and 19.

At this time, which totalizer is to be transferred to and added to is specified by pressing either subject key 7.8 or 9.10.

A verification register 21 for storing the first calculation result is coupled to the calculation register 14, and a verification register 21 is connected to the calculation register 14.
The memory contents are transferred from the calculation register 14 to this verification register 21 in response to a signal from the calculation register 14.

A comparator 20 is coupled to the arithmetic register 14 and the verification register 21 to compare their respective stored contents.

The subject keys 7.8 and 9.10 are connected to the set terminal of this comparator 20, and the set terminal of the second adder 15 and the reset terminal of the verification register 21 are connected to the output side. , a set terminal of an error indicator 23 is connected via an inverter 22.

The correction key 3 is connected to a reset terminal of the numeric register 12 and an error indicator 23, and is also connected to the arithmetic register 1 via an AND gate 24.
The output side of the inverter 22 is connected to the other input side of the AND gate 24.

The cancel key 4 is connected to reset terminals of the calculation register 14, the verification register 21, and the error indicator 23, respectively.

Next, the operation of the present invention will be explained.

By operating the numeric key 2, numeric data is input into the numeric register 12, an operation is performed by the addition key 5, and the result of the operation (first time) is stored in the arithmetic register 14.

Next, when the verification key 11 is pressed, the first calculation result is transferred to the verification register 21, and the calculation register 14 is transferred to the verification register 21.
The contents of are cleared.

Next, for verification, the numeric key 2 is operated again, the addition key 5 is used to perform the same calculation, and the result of the calculation (second time) is stored in the calculation register 14.

Here, if the subject of the number data is, for example, A, the corresponding subject key 7 is pressed.

Then, a comparison control signal is sent to the comparator 20, and the first and second calculation results are compared.

First, when both calculation results are equal, the data is correct, so a comparison output of "1" is output from the comparator 20, the second adder 15 is set, and the second calculation result is transferred to the summator 16. At the same time, the contents of the verification register 21 are cleared.

In this way, additional registration for subject A is performed.

Additional registration for other subjects, C and C, will be made in the same way.

Next, when the two calculation results are not equal, a comparison output r□ is generated from the comparator 20, which is sent to the error indicator 23 via the inverter 22, where an error is displayed.

At this time, the second adder 15 is not set, so
The result of the second calculation remains in the calculation register 14, and the verification register 21 is not cleared.
It holds the result of the first operation.

When an error message like the one above is displayed, the first
This corresponds to a case where one or both of the calculation results of the first and second calculations are wrong.

To correct this, press the correction key 3 and press the calculation register 14.
Clear the contents of the error display 23 and redo the second calculation for verification, or press the cancel key 4 to clear the calculation register 14, verification register 21, and error display 23, and perform the second calculation again. You can start over from the first calculation.

Furthermore, if the user notices a mistake in the number entered in the number register 12 before pressing the addition key 5, the user can press the correction key 3 to clear only the number register 12.

As described above, after the calculation results of the number data for each subject are confirmed to be correct through verification, they are transferred to the totalizer and added and registered.

In the above embodiment, the verification key 11 for verification is pressed, the comparator 20 compares the first and second calculation results, and the comparison output is used to transfer the second calculation result to the totalizer for addition. I explained the effect of

However, when verification is not necessary, such as when there is little number data or when a small number of entries are registered, the first calculation result is transferred directly to the totalizer and added without verification. It can be made to work.

For example, from subject keys 7.8 and 9.10, comparator 2
Connect the signal line to the 0 set terminal to the second
Switch and connect to the set terminal of adder 15, and after the first calculation, press subject keys 7, 8, 9 without pressing verification key 11.
．． By pressing any of the 10 keys, the first operation result can be directly transferred to the corresponding totalizer and added.

In the present invention, as mentioned above, since the cash register itself is equipped with a verification function, there is no need for a conventional calculator or solo pan for verification, and it is convenient to use.

Furthermore, if an error indicator is connected to the output side of the comparator 20, the verification results can be displayed, making it easy to confirm the verification results.

[Brief explanation of drawings]

The drawings show an embodiment of the cash register according to the present invention, with FIG. 1 being a front view of the keyboard, and FIG. 2 being a block diagram. 1...Keyboard, 2...Number key, 3...Correction key 4...Cancel key, 5...Addition key, 6...Subtraction key, 7゜8.9.10...・Subject key, 11...
Verification key, 2o... Comparator, 21... Verification register, 22... Inverter, 23... Error indicator, 24... AND gate.

Claims (2)

[Scope of utility model registration request] (1) The numeric data entered using the numeric keys is
In a cash register that performs calculations in an adder, stores the calculation results in a calculation register, and transfers the stored contents to the totalizer via a second adder according to an item key for addition registration, the register is coupled to the calculation register. a verification register, a verification key for transferring the memory contents of the calculation register to the verification register, and a comparator for comparing the storage contents of the calculation register and the verification register. , a cash register in which the content stored in the arithmetic register is transferred to the totalizer via the second adder based on the comparison output of the comparator. (2) Utility Model Registration Scope of Claim 1. The cash register according to claim 1, wherein the comparator has an error indicator coupled to its output side, and the error indicator displays the verification result.