JPS5834526Y2 - electronic cash register - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an electronic cash register that displays the time using an amount display section.

Conventionally, in this type of electronic cash register, a key such as an 87 o'clock key is operated to display the time, and a clear key is operated to clear the display.

Therefore, the time will not be displayed unless a key operation is performed consciously, so normally when a customer is waiting, the display will still contain the processing details of the previous customer, and the display will not be used effectively. It means that it is not.

On the other hand, after the cash/deposit key is operated to open the drawer and money is transferred or received, key operations are interrupted until the next customer requests.

During this time, the content displayed on the display section is unnecessary.

This idea was developed in response to the above circumstances, and when no key is pressed for a predetermined period of time after the registration process is completed, the display automatically switches to the time display, and when the user is waiting for a customer, the device automatically switches the display to the time display. It is an object of the present invention to provide an electronic cash register in which the display part can be used effectively.

This invention will be specifically explained below with reference to the illustrated embodiments.

FIG. 1 shows the external appearance of the electronic cash register according to this invention. In the figure, reference numeral 1 is the main body of the register, and the keyboard 2 has a key insertion part 3 for mode setting, deposits, withdrawals, etc. Function keys 4 for correction, clear, exchange, etc., an amount key 5, a subtotal key 6, an arithmetic key 7, a cash/deposit key 8, etc. are arranged.

Further, there is a digital display section 9 located side by side with the keyboard 2, on which a required number of digits can be displayed.

Further, a journal display window 10 and a receipt issuing port 11 are provided on the negative side.

A drawer 12 is arranged below the keyboard 2,
The drawer 12 is opened by operating the cash/deposit key 8.

FIG. 2 is a block diagram showing a schematic internal configuration of the electronic cash register according to this invention, in which reference numeral 21 is a central processing circuit, 22 is a memory for storing various aggregated data, and 2
3 is a key manual unit; 24 is a printing unit for issuing receipts, printing journals, etc.; 25 has its own timekeeping function, and sends the time data to the central processing circuit 21 in response to a reading command from the central processing circuit 21; This is a clock circuit.

The contents of the portion of the central processing circuit 21 according to the present invention are shown in further detail in FIG.

That is, the calculation unit 211 exchanges data with the memory 22 and is given key data from the key human power unit 23 .

Furthermore, the control unit 212 provides signals for specifying the type of calculation, input and output specifying signals, and the like.

The control section 212 outputs various control signals to control the entire circuit, and stores a microprogram in a fixed manner. When an address is given, the control section 212 executes the microprogram stored at that address. Each part of the circuit is controlled by outputting a predetermined control signal.

Thus, the control unit 212 performs functions such as issuing a read command to the clock circuit 25 or specifying an address to the memory 22.

Further, the control unit 212 issues a drawer open command to the drawer 12, and the drawer 12 sends a flag signal indicating the open/closed state of the drawer (for example, 1'' is open and P O'' is closed) to the detection circuit. 213, and its detection signal is given to the control section 212.

Further, the arithmetic unit 211 outputs a set signal of '1' to the flag register 214 during money registration, and the signal from the register 214 is sent to the determination circuit 215.

The determination circuit 215 stores tt in the flag register 214.
Different addresses are specified to the control unit 212 depending on whether 1pp is set or not.

The amount data or time data from the calculation unit 211 is
It is temporarily stored in the accumulator 216 and then provided to the display section 9 at a predetermined timing.

It is also returned to the calculation unit 211 as necessary.

Further, there is a counter 217 which receives and counts pulse signals from the arithmetic unit 211, and when the count value of this counter 217 exceeds a certain value, a judgment circuit 218 judges this and specifies a program to the control unit 212. It looks like this.

In such a configuration, a series of flows as usual in which a key sampling flow is executed, a registration process is performed, and the cash/deposit key 8 is pressed to complete the transfer and receipt of money is schematically shown in FIG. ing.

That is, when the cash register is powered on, the key sampling flow is executed in step s1, but when the amount key 5 or the function key 4 is operated, the The key human power section 2 at a predetermined timing according to the key sampling timing signal.
3, the key data is given to the central processing circuit 21.

Based on this key data, the central processing circuit 21 determines that a key signal is present and determines the type of key in step s2.

If the type of the key is the cash/deposit key 8, after performing the total calculation, a drawer open command is given to the drawer 12 from the control section 212, and a print drive signal is given to the printing section 24. It will be done.

The printing unit 24 then receives the print data from the central processing circuit 21, provides a print position signal to the central processing circuit 21, executes printing on the journal and the receipt while taking timing, and issues the receipt in step S2. do.

If the type of the key is other than the cash/deposit key 8, the controller 212 specifies an address in the memory 22 according to the specified microprogram, and also sends an address to the arithmetic unit 211. , specify the type of operation and input/output.

Incidentally, when the aforementioned cash/deposit key 8 is operated, change is calculated in the calculating section 211, and it is natural that this is given to the display section 4 via the accumulator 216.

When step S2 is completed, step S2 is completed again.
1, and the presence or absence of the key is checked.

If there is a key presence signal, step S2 is entered again, but if there is no key, the key sampling flow is repeated.

This is how money is registered,
The case where the time is displayed during non-registration will be explained with reference to FIG.

If the text and key are not confirmed in the process of the key sampling flow, the process proceeds from step Sll to 812.

In this step, the content of the flag register 214 is determined by the determination circuit 215.

If it is being registered, the flag register 21 is sent from the calculation unit 211.
4, a signal indicating that registration is in progress is issued, and tt 1 pp is thereby set in the flag register 214.

Therefore, the judgment circuit 215 judges the contents of the flag register 214, and if it confirms tt 1 n, it specifies the address of step Sll to the control unit 212 (t Q fi
If l is confirmed, the address in step S12 is specified.

Note that "registering" here refers to a time when one business process has not been completed, the amount key 5, the calculation key 1, etc. have been operated, and a receipt has not yet been issued.

If it is determined in step S12 that registration is not in progress, the process advances to step S13, where the determining circuit 218 determines the contents of the counter 217.

This counter 217 is reset in the initial state, and the determination circuit 218 determines O'' and specifies the address of step 814 to the control unit 212.

In step S□4, the contents of the counter 217 are determined by the judgment circuit 2.
18 to the arithmetic unit 211, where it is incremented by 1 and the process returns to step Sll.

Then, unless the key is confirmed in step S□1, the above operation is repeated and the counter 217 continues to count up.

During this time, although not specified in the flowchart of FIG. 5, the registered data in the accumulator 216 is displayed on the display section 9.

The judgment circuit 218 is set to specify the address of step S15 to the control unit 212 when the count value of the counter 217 reaches a predetermined value N, and this N specifies the time until switching to time display.

That is, since the count value of the counter 217 is incremented by 1 each time the key sampling flow is executed one cycle, N can be determined from the execution time of one cycle of the key sampling flow.

For example, if the time from registration completion to switching to time display is 30 seconds, then N = 6000, and if 1 minute, N = 12000.
That's about it.

In this way, step S11 is performed without any key being pressed. S
12. When the count value of the counter 217 reaches N while repeating steps S13 and S14, the process advances from step S□3 to step Si2.

In step S15, the control unit 212 controls the clock circuit 25.
A read command is given to the clock circuit 25, and clock data is read out to the accumulator 216 via the arithmetic unit 211.

In this way, step S15 is executed, clock data is sent from the accumulator 216 to the display unit 9 at a predetermined timing, step S□6 is executed,
The time is displayed on the display section 9.

Therefore, as long as the next key operation is not performed, step 5
11g512IS, 3. S□5. It is executed in the order of S16, and the display is maintained for a period of time.

If a key operation is performed, the process moves from step Sll to step S17.

In this process, a clear signal is input from the calculation unit 211 to the counter 217, and the count number is set to O''.

On the other hand, a registering signal is input from the calculation unit 211 to the flag register 214, and the flag "1" is set.

Then, the process corresponding to the pressed key is executed.

Therefore, the display disappears from the display section 9, and the display changes to the display of registered data such as entered numerical values.

In the above embodiment, a counter is used as a means for measuring a predetermined time after the registration process is completed, but the counter is not limited to this, and for example, the time measurement data of the clock circuit can be used to measure the predetermined time.
Various things can be considered, such as detecting the carry of time measurement data.

As explained above, according to this invention, if no keys are operated for a certain period of time after the registration process is completed, the display automatically switches to the time display. , the time is always displayed, and the display section can be effectively used as a clock.Moreover, because of this time display,
This has the practical effect of not requiring any switching operation from time display to amount display during registration.

Furthermore, since the display does not change until a predetermined period of time has elapsed from the end of the registration process, there is no need for the display to change to the time while the customer is checking the amount.

[Brief explanation of the drawing]

Fig. 1 is an external perspective view of a cash register showing an embodiment of this invention, Fig. 2 is a block diagram schematically showing the internal structure of the cash register, and Fig. 3 is a central processing circuit according to the invention. FIG. 4 is a block diagram showing the details of the parts, FIG. 4 is a diagram showing the flow in normal registration, and FIG. 5 is a diagram showing the flow when displaying the time. 1... Registration machine body, 2... Keyboard, 3... Key insertion part for mode setting, 4...
...Function key, 5...Amount key, 6
...Subtotal key, I...Calculation key, 8.
...Cash/deposit key, 9...Display section, 10.
...Journal display window, 11...Receipt issue slot, 12...Drawer, 21...
・Central processing circuit, 22...Memory, 23...
...Key personnel department, 24...Printing department, 25...
... Clock circuit, 211 ... Arithmetic unit, 212
...Control unit, 213...Detection circuit, 2
14... Flag register, 215... Judgment circuit, 216... Accumulator, 217
... Counter, 218 ... Judgment circuit.

Claims (1)

[Scope of utility model registration request] A clock circuit for measuring time, a registration closing key such as a cash/deposit key, an amount key for inputting numerical values such as amount or number of products, and a group of keys such as function keys for performing registration calculations, and the above-mentioned group of keys. An electronic cash register comprising means for inputting registration data and performing product registration processing through a combination of operations, and a display section for displaying the processing progress or result or time measurement data of the clock circuit,
a measuring means for measuring the clock after the registration closing key is operated;
a determining means for determining whether or not the measuring means measures a predetermined time before the first key is operated after the registration closing key is operated; An electronic cash register characterized in that when it is determined that a transaction has been made, clock data of the clock circuit is displayed on the display section.