JPS5938625B2 - Electronic cash register memory device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a memory device for an electronic cash register that inhibits unit price input to an information memory depending on preset contents of a judgment memory.

Recently, a unit price preset method for electronic cash registers has been introduced, in which the unit price for each product category is entered in advance, and the unit price is read out by pressing the key for each product category and the amount is registered. However, with this method, you do not have to enter the amount, so key operations are easier, but on the other hand,
There is a drawback that it cannot be implemented unless there is a single price for a single product. In view of the above points, the present invention provides a memory device that is easier to use.

The figure is a circuit diagram showing an embodiment of the present invention.

1 is the keyboard, register R inspection X payment Z and preset P
a changeover switch unit 11 for switching each mode state of 0;
It is composed of a numeric part 12 of 9 to 9 and a facsimile part 13 such as a key for each product category and a cow for each transaction.

When input from the numeric part 12 of the keyboard 1, the contents are introduced into the first register 21 through the gate gl, and the contents of the first register 21 are transferred to the second register 22 through the gate g2, or are transferred through the gates g3 and g4. The adder/subtractor 23 has a first
Addition and subtraction are performed by introducing the contents of the second registers 21 and 22. 24 is a decimal point storage device which receives and stores the decimal point signal from the numeric section 12.

Reference numeral 25 is a memory device for storing whether the key signal is a number or a function.

3 is a control circuit, which connects the function section 13 of the keyboard 1.
Introducing the function signal from the switch section 11 and the output of the memory device 25 to open and close various gates, and perform calculations, calculations, etc. in registration, inspection, payment, preset processing, etc.
Performs information processing such as reading and writing to memory.

Reference numeral 4 denotes an amount memory, which has a memory capacity of, for example, 12 digits of 4 digits and 4 bits for each product, and the memory contents are read out or written when registering each product category.

Numeral 5 is a unit price memory which, like the amount memory, has a storage capacity of, for example, 4 bits or 4 digits for each product, and sets the unit price in advance by presetting the changeover switch section 11, and reads it out at the time of registration to calculate the amount.

Reference numeral 6 denotes a judgment memory, which has a memory capacity of, for example, 1 bit for each product and department, and sets the changeover switch section 11 to a preset state to predefine and register information for prohibiting unit price registration processing by the mansion. It is read out at the time to distinguish whether unit price input is possible or not.

The amount memory 4, unit price memory 5, and judgment memory 6 each have the number of product categories, for example, if n is the number of categories and 0,
It is possible to memorize the sales amount, unit price, and availability of unit price registration for n products. Re41~re4nj゜No.1~j4
n, Re51~Re5n, j51~j5nl WooH6l
~H6n. j6l to J6n are write/read gates of the memories 4, 5, and 6.

In addition to the above-mentioned memory, electronic cash registers generally also have transaction-specific memory and department-specific count memory, but these are omitted as they are not relevant in the above example.

Next, the operation will be explained.

First, general sales amount registration is performed with the changeover switch section 11 of the keyboard 1 set to registration R.

For example, when registering sales of 100 yen in the first product category, first 100 is placed in the first register 21 from the number section 12 via the gate g1. Thereafter, when the first product department key of the function section 13 is pressed, the control circuit 3 is activated, and a signal is applied to the first line a1 of the address line a and the readout line J4 of the amount memory 4, and the gate J4l is activated. The first memory 41 of the selected amount memory 4
The contents are read into the second register 22 via gates J4l and g2. Thereafter, the contents of the first and second registers 21 and 22 are input to the adder/subtractor 23 via gates G3 and g4 and added, and the sum is stored in the first register 21. Then, a signal is again applied to the first line a'1 of the address line a and the write line H4 of the amount memory 4, and the write signal is applied to the gates H4l to H4n via the gate G5, so that the gate H4l is selected. 100 is added to the first memory 41 of the amount memory 4 and the content is newly stored. Next, the registration of preset unit prices will be described. First, in order to preset the unit price, the changeover switch section 11 is set to the preset P position, the gate G6 is opened, and the contents of the first register 21 are transferred to the gates H5l to H5n.
give to In this state, enter the unit price in the first register 21, press the corresponding product department key, and press the unit price memory 5.
A signal is applied to the write line H5 and the corresponding address line a, and the contents of the first register 21 are written to the corresponding memory. It is written to other memories in the same way. When the preset operation is completed, the changeover switch section 11
Return to registered R and register using the preset unit price. When registering using a preset unit price, press the corresponding product department key to register without entering a number.
For example, if a unit price of 100 yen is preset for the first product category, 100 is added to the price memory 4 by pressing the first product department bar key. First, when the first product department key is pressed, the control circuit 3 is activated, but since no digits have been entered before the key operation, the output of the memory 25 indicates the function state, and the same function The operation is also controlled differently from the case of the above-mentioned number registration. In other words, the first line A of the address line a and the readout line J5 of the unit price memory 5 correspond to the first product department key.
A signal is applied to the unit price memory 5, and the contents (100) of the first memory 51 of the unit price memory 5 are read out to the second register 22 via the gates J5l and g2. Subsequently, the first
The contents of the second registers 21 and 22 are added, but since the first register 21 is zero, the sum becomes 100 and is stored in the first register 21. Thereafter, the first memory 41 of the amount memory 4 is read out to the second register 22 via the gates J4l and g2 in response to the address signal and the read signal, and the previous 100 disappears. Then the first and second registers 2
1 and 22 are executed, and the sum is stored in the first register 21.
will be stored in. Then, the sum in the first register 21 is transferred to the first memory 4 by the address signal and the write signal.
Written to 1. Through the above operations, the unit price 100 is added to the amount memory 4. The same applies when using other preset unit prices. Next, the operation of the judgment memory 6 will be described. First, at the time of presetting, the changeover switch section 11 is set to the preset P position, the gate G7 is opened, and the decimal point of the numeral section 12 is pressed to be stored in the decimal point memory 24. Thereafter, the user presses the key corresponding to the product category whose number registration is to be prohibited to preset "1" in the judgment memory 6. For example, when the first product department key is pressed, the first line a1 of the address line a and the write line H6 of the judgment memory 6
A signal is applied from the control circuit 3 to the decimal point memory 24, and the output of the decimal point memory 24 is written in the first memory 61 of the judgment memory 6 via the gates G7 and h6l. The same applies to other memories. After presetting, the decimal point memory 24 is cleared, the changeover switch section 11 is returned to registration R, and registration is performed. However, in the above example, since "1" is stored in the first memory 61 of the judgment memory 6, For the first product category, only preset unit prices can be registered, and registration by set number is prohibited.

The inhibiting operation is because the output of the judgment memory 6 is applied to the gate g5 to close the gate g5 and cut off the write signal of the amount memory 4. In other words, when registering the number, as in the above example, when the product department key is pressed, the memory 25 stores the number state, and based on that state, the control circuit 3 sends a decision to the reading line j6 of the memory 6. A signal is applied to the address line a, and the corresponding gate is opened in response to the signal on the address line a. For example, when the first product category key is pressed, the gate j61 is selected and the first gate in the judgment memory 6 is opened. 1 in the memory 61 is read out, and the output sounds the buzzer 7 to notify the error, and at the same time, the gate g is closed to cut off the write signal in the amount memory 4. In the above example, the contents of the amount memory 4 are read out to the second register 22 by pressing the product department key, and the contents of the amount memory 4 are read out to the second register 22.
, the sum of the first register 21 is written to the amount memory 4 after adding the contents of the second registers 21 and 22, so if writing is prohibited, the sum in the first register 21 will not be written to the amount memory 4, and the sum in the first register 21 will not be read. This will keep the content as it was before it was uploaded.

Furthermore, if information prohibiting registration of numbers is not preset in the judgment memory 6, registration by numbers and preset unit prices are possible. As described above, the present invention includes an information memory that stores the sales amount and unit price for each product category, a judgment memory that controls the write gate of the memory to determine whether or not to input a number to the unit price preset category, and It consists of a means for presetting the contents, and is characterized by prohibiting the input of unit prices into the information memory depending on the preset contents of the judgment memory, and even in the department where the unit prices have been preset, it is possible to prevent the input of unit prices from changing depending on the input of the numeric value. Since you can register the unit price of a value, you can register even if there are various price structures for a single product, and in the case of a single price for a single product, you can prevent mistakes by prohibiting registration by inputting a numeric value. Since input can be prevented, a cash register that is extremely easy to use can be realized.

[Brief explanation of the drawing]

The figure is a circuit diagram showing an embodiment of the present invention. In the figure, 1 is a keyboard, 3 is a control circuit, and 4 is a memory for monetary amounts.
5 is a unit price memory, and 6 is a judgment memory.

Claims (1)

[Claims] 1. An information memory that stores the sales amount and unit price for each product category, a judgment memory that controls the write gate of the memory to determine whether or not a number can be input to the unit price preset category, and a means for presetting the contents of the memory. A memory device for an electronic cash register, characterized in that unit price input to the information memory is prohibited based on preset contents of the judgment memory.