JPS5839350B2 - electronic cash register - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an electronic cash register that performs classification and aggregation by department and item according to a product department key.

Conventionally, with electronic cash registers, sales trends are grasped by classifying and aggregating sales for each product category according to each product category key.Furthermore, for example, tax or non-taxation is set for each product category for domestic use in the United States, and tax rates are set. It is also possible to calculate the tax amount based on the tax rate, but since the tax rate differs depending on the state, the tax rate must be made variable, and the taxable and non-taxable settings differ depending on the product sold by each retailer, so taxation is required. It is necessary to allow each store to decide whether or not to offer discounts or premiums, and recently there has been a desire to be able to set discounts or premiums for each product category.
The above setting conditions are complicated and there are many problems in terms of operation or configuration.

The present invention provides an electronic cash register which has a simplified circuit and is easy to operate by arranging a plurality of setting conditions and performing classification and aggregation by item.

FIG. 1 is a block diagram showing one embodiment of the present invention.

In the figure, 1 is the keyboard, and the number keys from O to 9 are part 1.
1. For example, it has a key part 12 for each category of products in eight categories, a key part 13 for each transaction such as deposit, withdrawal, returned goods, cash, etc., and a mode switching key 14 for registration, inspection, settlement, and preset. The control circuit 2 is provided with a signal, a product category signal, a transaction signal, and a mode signal.

The control circuit 2 introduces the signal from the keyboard 1, and
Execute the built-in program and set the numbers in the first and second registers 31 and 32 and the first and second registers 31 and 32.
The contents of the sales register 33, the first and second item registers 34 and 35, and the non-item register 36 are read or written.

Each of the registers 31 to 36 is constituted by, for example, a seven-digit shift register with four bits per digit, and its contents are stored in circulation.

g, to gx6 are gates whose opening and closing are controlled by the control circuit 2.

The control circuit 2 also includes first and second address registers 41.4.
2 is used to read or write the contents of the product department memory 5, first and second total item registers 53, 54, total unitem register 56, and total total register 53.

The product department memory 5 and each of the registers 53 to 56 are composed of a seven-digit status memory with each digit of four bits, similar to the registers 31 to 36 described above.

In addition, corresponding to the 8 classifications of product department memories 5, 8 department designation memories 6 are provided with 3 bits for each department, and each product department is designated as an item.

Note that 61 is a 2-pit storage element that assigns meaning to the items in the designated memory 6, and in this example, determines whether or not to be taxed.

Since the product department memory 5, each register 53 to 56, the designated memory 6, and the storage element 61 are composed of similar static memories, for example, the same static R
It can be stored in the AM IC.

Reference numeral 7 is a rate memory that stores the tax rate premium rate, for example, the tax rate for each state in the United States and the premium rate for each store.
- (ROM) can be used, and if you want to set it before use, you can use non-volatile memory.

In the illustrated example, a ROM is used.

Note that the first address register 41 includes a product department memory 5, registers 53 to 56, a designated memory 6, and a storage element 61.
and rate memory 7 digit or pit position, and select the second
The address register 42 selects each memory and its section.

A write signal line 1 is a signal line for writing data into the product department memory 5, the registers 53 to 56, the designated memory 6, and the storage element 61.

A display circuit 8 normally displays the contents of the first register 31.

Further, 9 is a printer, which performs printing according to a print command from the control circuit 2.

Next, the operation of FIG. 1 will be explained by showing the flowcharts of FIGS. 2 and 3 and the state diagram of the designated memory 6 of FIG. 1 in FIG.

First, in the case of the numeric value, the output of the number key part 11 is encoded by the control circuit 2 and introduced into the first register 31 through the gate g1, after which the contents are stored circularly through the gates g12 and g2. At the same time, it is displayed on the display circuit 8.

After entering a predetermined numerical value, the control circuit 2 performs department registration as shown in FIG. 2 based on the output of the product department key part 12.

As shown in the figure, when any product department key is pressed, the numerical value stored in the register 31 is first printed by the printer 9 in response to a print command from the control circuit 2.

Next, the corresponding memory contents of the product department memory 5 corresponding to the product department key are read out by the first and second address registers 41 and 42, and transferred to the second register 32 via the gate g3. 1. Second register 31.3
The contents of 2 are led to the control circuit 2 via gates g42g5 and added, and the sum is sent to the gate g along with the signal on the write signal line l.

The data is written to the corresponding memory 5 via.

In other words, the contents of the first register 31 are added to the memory of the corresponding product department.

Next, by the first and second registers 31 and 32, the 3-bit memory corresponding to the product department key in the specified memory 6 is read out to the control circuit 2 via the gate g7, and the item condition is determined.

For example, if the first item is set in the corresponding memory, the contents of the first item register 34 are set to gate gs 2g.
o to the second register 32, the contents of the first and second registers 31 and 32 are added in the control circuit 2,
The sum is transferred to the first item register 34 via gate g1o.
will be written to.

That is, the contents of the first register 31 are added to the first item register 34.

Next, it is determined whether or not the second item has been set in the contents of the specified memory 6 read above, and if it has been set, the second item is added in the same manner as the addition to the first item register 34.
An addition to item register 35 is made.

Further, if neither the first nor second item is set, addition to the non-item register 36 is performed.

Thereafter, the contents of the sales register 33 are read out, and the contents of the first register 31 are added in the same manner as above, and the sum is stored, but at the same time, it is also transmitted to the second register 31 via the gate g, and is transmitted to the display circuit 8. will be displayed at

In the above example, the specified memory 6 performs selective addition to the first and second item registers 34, 35, non-item register 36, and addition to the sales register 33. It is determined by the state diagram of the memory 6, and it is possible to specify not only selective addition but also subtraction.

In FIG. 4, setting conditions for whether subtraction or not, first item, or second item are stored in eight categories in a 3-bit memory, and the conditions are stored in binary numbers of 1'' or 0''.

In the illustrated example, the first category is "ooo", which is neither subtraction nor the first item nor the second item.

That is, in addition to adding the first product department key to the product department memory 5, additions are also made to the unitem register 36 and the sales register 33.

On the other hand, the fifth category is "100", and the fifth product category key is not only added to the product category memory 5 but also subtracted from the unitem register 36 and the sales register 33.

In other words, since the fifth product category key performs subtraction in the opposite way to the first product category key, it is normally used as a discount key.

In the illustrated example, the second division indicates addition to the sales register 33 and the second item register 35, and the sixth division indicates subtraction.

The other 3rd division and 7th division, and 4th division and 8th division are in the relationship of addition and subtraction.

To summarize the example in the figure, the first to fourth departments correspond to the normal product department keys, and the addition to the sales register 33 and the first,
Selective addition is performed to the second item registers 34, 35 and the non-item register 36, and the fifth to eighth divisions are subtracted in the opposite way to the first to fourth divisions, thereby serving as a discount.

As mentioned above, the designated memory 6 is for classifying and tallying the sales for each department registration as either or both of the first and second items. o'") determines whether or not it is subject to tax.

For example, if both the first and second items in the storage element 61 are to be taxed, the contents of the first and second item registers 34 and 35 are to be taxed.

For this reason, the amount of tax is calculated at the time of settlement of sales by the customer, and collected as the total amount of sales and tax.

FIG. 3 is a flowchart showing the operation of the customer cumulative total, and shows the operation when the cash key is pressed.

First, whether the first item stored in the memory element 61 is taxable (1) or non-taxable (0) is read out via the gate g7, and if it is taxable, the tax rate is read out from the rate memory 7 and once stored in the first register 31.
After leading the contents of the first item register 34 to the second register 32, the contents of the first and second registers 31 and 32 are transferred to the control circuit 2 to find the product, and the product is It is stored in the item register 34 and the register 31.

That is, the tax amount is calculated by multiplying the tax amount in the first item register 340 by the tax rate.

The tax amount on the register 31 is printed by the printer 9 according to a print command.

Further, the contents of the sales register 33 are transferred to the register 31, the first and second registers 31 and 32 are added, and the sum is stored in the sales register 33.

That is, the tax amount is added to the sales register 33.

Next, the second item stored in the memory element 61 is taxed 1) or nonlinear [0
), and the tax amount is calculated, printed, and added to the sales register 33 in the same manner as above.

If both the first and second item stored in the memory element 61 are non-linear [0], the tax amount calculation and printing and addition to the sales register 33 are not performed.

After that, the contents of the sales register 33 are changed to gate g11゜g2
is transferred to the first register 31 for printing.

Subsequently, the contents of the grand total register 53 are led to the second register 32, the first and second registers 31.degree. 320 addition is performed, and the sum is stored in the grand total register 53.

Then, the contents of the first item register 34 are changed to the first item register 31.
, the contents of the first total item register 54 are transferred to the second register 32.
The sum is calculated and the sum is stored in the first total item register 5.
Written to 4.

Other second item register 35 and unitem register 36
The contents of are also sequentially added to the two total item register 55 and the untotal item register 56, and the cumulative operation of each register 53 to 56 is completed.

In the above example, only the tax amount is calculated, but the rate memory 7 also stores the premium rate, and service charges can be calculated in the same way instead of the tax amount.

Also, if the product of the rates of the first and second item registers 34, 35 and the rate memory 1 is subtracted from the contents of the sales register 33 by the product of the rates of the sales registers 34, 35 and rate memory 7, the discount is processed. can also be done.

For this purpose, it is necessary to provide the storage element 61 with an element that stores the setting condition of whether or not subtraction is to be performed, similar to the designation memory 6.

As described above, the present invention has a departmental memory that stores the sales of each department in correspondence with a product departmental key, a designated memory that is provided for each memory and stores the product departmental key as an item, and a memory that stores the product departmental key as an item. It consists of an item memory in which the contents of the above-mentioned departmental memory are classified and aggregated, and is characterized by performing classification and aggregation by department and item according to the product department key, and it is possible to freely specify items using the specified memory. Furthermore, you can freely decide what each item is used for, giving you great selectivity, and it is easy to use because the operations are the same as before.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing an embodiment of the present invention, FIGS. 2 and 3 are flowcharts showing the operation of FIG. 1, and FIG. 4 is a state diagram of the specified memory shown in FIG. In the figure, 1 is a keyboard, 2 is a control circuit, 5 is a product category memory 6, and a designation memory 7 is a rate memory.

Claims (1)

[Claims] 1. A departmental memory that stores the sales of each department corresponding to the product departmental key, a designated memory that is provided for each memory and specifies the product departmental key as an item, and a departmental memory that stores the departmental sales according to the item specification of the designated memory. It consists of an item memory for classifying and aggregating the contents, and is characterized by performing aggregation by department in response to the operation of the product department key, and aggregation by category by item specified in the designated memory in response to the operated department key. electronic cash register.