JPS6411987B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention relates to an electronic cash register that performs clerk-designated registration processing.

Prior Art Conventionally, for example, in a department store or the like, a clerk-designated cash register in which a clerk's code for managing the use of the cash register is registered in the register is known from Japanese Patent Laid-Open No. 53-65037. . Further, there is also known an electronic cash register that registers only transaction information managed by the registered clerk, that is, registers designated by a clerk.

An example of this type of cash register is one constructed as shown in FIG.

For example, in order for clerk A at a department store to register sales items using the conventional cash register, before using the register,
The clerk designation key 1-A of the input device 1 corresponding to clerk A is pressed to designate clerk A. With this clerk designation operation, the key determination circuit 2 outputs the specified clerk designation signal.
The signal is applied to the CPU 3, and the CPU 3 executes a program for registration processing corresponding to the clerk designation signal.
Continues from ROM4.

Then, when the clerk presses a predetermined key such as a numeric keypad (not shown) on the input device 1, registered information such as the product department code and the number of sold products for each sales product type of clerk A is sent to the key determination circuit 2. When inputted to the CPU 3 via the ROM 4, arithmetic processing such as the sales amount for each sales product type and the total sales amount is performed in an arithmetic unit (not shown) of the CPU 3 according to the program continued from the ROM 4. Then, registration processing data indicating the result of this calculation is stored in a predetermined area 5A of the RAM 5. Furthermore, when the clerk presses a settlement command key (not shown) on the input device 1, the registration processing data stored in the RAM 5 is sequentially input to the display device 6, and the sales amount for each product type, total sales amount, etc. The information is visually displayed and input to a printing device 7, which then issues a receipt or the like related to the sale.

In this way, in the above-mentioned conventional cash register, once a predetermined clerk is designated before the register is used, a predetermined clerk is designated according to the program for registering the designated clerk. Registration processing is performed.

Problems to be solved by the invention In Japan, one clerk usually performs registration operations for all products sold by one customer, but in Europe and other countries, the product groups under each clerk's jurisdiction are determined. Frequently, several clerks register one customer. Therefore, in the conventional cash register, 1
Because it was not possible to change clerks while registering customers, in Europe it was necessary to install as many cash registers as clerks in one place.

This invention has been made to solve the various drawbacks mentioned above, and is a cash register that performs registration processing of clerk designation, and allows the clerk designation to be changed at will during the registration processing of a predetermined transaction. To provide an electronic cash register with very good operability in registration processing using one cash register and allowing a plurality of clerks to perform registration processing.

Means for Solving the Problems The electronic cash register of the present invention includes a plurality of key switches 1A to 1C for clerk designation corresponding to each clerk, and a key switch that is operated when the clerk designation key switch is operated. a key determination circuit 2 that outputs a code signal corresponding to the signal; a memory device 9 that stores the code signal output from the device; and a key determination circuit 2 that outputs a code signal corresponding to the signal; a central processing unit (CPU3) that executes the registration process; a status determination circuit 11 that determines and stores whether or not the registration process has ended; and a clerk designation circuit 11 that determines and stores whether or not the registration process has ended; A first step for prohibiting the introduction of the code signal outputted from the key determination circuit by the operation of the key switch into the memory device, and for introducing the code signal into the memory device except during the operation.
circuit (gates 16 and 17), a switch for setting the clerk designation change mode during the registration processing operation, and only when the switch for setting the clerk designation change mode is operated. A second circuit (gate 22) that introduces a code signal outputted from a key determination circuit by operating a key switch for clerk designation into the memory device to permit rewriting of the code signal stored in the memory device. , the operation of the switch 20 and the second
The circuit (gate 22) inputs the code signal of the operated key switch for clerk designation into the memory device to change the clerk designation.

Effect In the above configuration, during the registration processing operation of a certain person, the switch 20 is turned on to change the clerk designation.
When turned on, the second circuit (gate 22) enters a state in which it can introduce into the memory device 9 the code signal from the key determination circuit 2 based on the operation of the key switches 1A to 3C for clerk designation. Here, when the key switch for specifying a clerk is operated, a corresponding code signal is introduced from the circuit 2 to the memory device 9 via the second circuit, and the code signal stored in the memory device 9 is rewritten. You can change your clerk designation by doing so. Then, the central processing unit (CPU3) executes a predetermined registration processing operation according only to the changed code signal stored in the memory device.

Embodiment An embodiment of the present invention will be described below with reference to FIGS. 2 to 4.

The register according to the present invention shown in FIG.
The difference from the conventional type shown in the figure is that a memory device 9 such as a RAM for storing clerk-specified codes is provided, and an operation mode selection circuit 10 is provided. Other identical components are designated by the same reference numerals and description thereof will be omitted.

The RAM 9 can be the same memory device as the RAM 5.

In the operation mode selection circuit 10, 11 is a circuit for determining whether a predetermined registration processing operation has been completed. As this circuit 11, for example, a flip-flop circuit is used.

The set terminal S of the state determination circuit 11 is connected to the key switches 1-A, 1-B, 1 for specifying each clerk.
The output terminal of an OR gate 12 having input terminals connected to -C separately is connected to the output terminal of an AND gate 13 having one input terminal connected to the output terminal.
Moreover, the reset terminal R of this circuit 11 is connected to the CPU
3 to receive a high level signal from the CPU 3 indicating completion of a predetermined registration operation. The output terminal Q of this state determination circuit 11 is connected to the inverter 14 and the delay circuit 1.
5 to the other input terminal of the AND gate 13. This delay circuit 15 is a circuit that allows the low level signal "L" to pass only after an appropriately set delay time τ.

Further, the output terminal of the delay circuit 15 is connected to the other input terminal of an AND gate 16 whose one input terminal is connected to the key determination circuit 2, and the output terminal of this AND gate 16 is connected to the state determination circuit 1.
It is connected to the other input terminal of an AND gate 17 whose one input terminal is connected to the output terminal Q of the AND gate 17. The circuit consisting of the AND gates 16 and 17 generates a code signal output from the key determination circuit 2 when one of the key switches 1-A, 1-B, and 1-C for clerk designation is operated during the registration processing operation. This circuit constitutes a first circuit that prohibits the code signal from being introduced into the memory device 9 and allows the code signal to be introduced into the memory device 9 except during the registration processing operation.

With this configuration, the state determination circuit 11 described above
is reset in the initial state before the cash register starts the registration processing operation, and its output terminal Q is set to a low level "L". The output signal “L” of this output terminal Q is inverted to a high level signal “H” via the inverter 14, and this inverted signal “H” is further applied to the other input terminal of the AND gate 13. , the AND gate 13 is placed in a state that allows a high-level signal "H" applied to one input terminal to pass, and is applied to the other input terminal of the AND gate 16, so that the AND gate 16 is in a state where a signal (clerk designation code signal) applied from the key determination circuit 22 to one input terminal can pass therethrough. Furthermore, the state determination circuit 1
The low-level signal “L” at the output terminal Q of No. 1 is applied to one input terminal of the AND gate 17,
The AND gate 17 is configured to block passage of the signal applied from the AND gate 13 to the other input terminal. less than,
In this way, a high level signal "H" is applied to one input terminal of each AND gate 13, 16, 17 having two input terminals, and a high level signal is applied to the other input terminal of each gate. The state in which it is possible to pass is simply called the open state. Conversely, a state in which a low-level signal "L" is applied to one input terminal of each gate and blocks passage of a high-level signal applied to the other input terminal of each gate is simply called a closed state. That's what it means. Note that the same applies to AND gates 18 and 22, which will be described later.

As described above, when any one of the clerk designation key switches 1-A, 1-B, and 1-C is pressed while the state determination circuit 11 is reset, the OR gate 12 outputs a high-level signal. Outputs “H”. As described above, this signal "H" is applied to the set terminal S of the state determination circuit 11 via the AND gate 13 which is opened, and the circuit 11 is set and its output terminal Q is set high. Switch to level “H”. As described above, the signal "H" output from the output terminal Q is applied to one terminal of the AND gate 17, which is closed, and the gate 17 is opened. Further, the output signal “H” of the output terminal Q is inverted to a low level signal “L” via the inverter 14, and this inverted signal “L” is applied to the delay circuit 15. This delay circuit 15 has a delay time τ
During the process, the inverted signal "L" is prevented from passing through, and the previous high level signal "H" is applied to the other input terminal of AND gates 13 and 16, respectively, to determine the state of both AND gates 13 and 16. circuit 11
It is held open until the delay time τ has elapsed from the time when it is set. In this way, the AND gates 16 and 17, which are in the open state, are sent out from the key determination circuit 2 at the same time as the key switch for specifying the clerk is pressed. The state is such that a code signal corresponding to the pressed key switch for clerk designation can be passed.

Note that the delay circuit 15 is similar to the state determination circuit 11.
When the delay time τ has elapsed from the time of setting, a low level signal “L” is output, and this signal “L”
is applied to the other input terminal of both AND gates 13 and 16. Therefore, both the AND gates 13 and 16 are closed, and from this point on, the AND gate 13 does not allow the high level signal "H" from the OR gate 12 to pass through when the key switch for specifying the clerk is pressed. The AND gate 16 is designed to block passage of the code signal from the key determination circuit 2 corresponding to the pressed key switch for clerk designation.

In this way, the AND gates 16 and 17 are adapted to pass only the code signal corresponding to the clerk designated key pressed first.

Thereafter, when a high-level signal "H" indicating that the cash register has completed the predetermined registration processing operation is applied from the CPU 3 to the reset terminal R of the status determination circuit 11, the status determination circuit 11 is reset. Then, the output terminal Q is switched to the low level "L" again, and the above-mentioned initial state is restored.

Reference numeral 20 denotes a switch for selecting the registration processing operation of the clerk designation change mode in the cash register.

One contact 20a of the switch 20 is grounded, and the other contact 20b is connected to a predetermined high-level DC power supply +V via a resistor R1. Furthermore, this other contact point 20b is
An AND gate 22 is connected to the other input terminal of an AND gate 18 which has one input terminal connected to the output terminal of the AND gate 17, and also has one terminal connected to the key determination circuit 2 via an inverter 21. is connected to the other input terminal of

Further, the output terminals of both AND gates 18 and 22 are respectively connected to two input terminals of an OR gate 23. The output terminal of this OR gate 23 is connected to the RAM 9. When the switch 20 is operated, the AND gate 18 inputs the operated code signals of the key switches 1-A, 1-B, and 1-C for clerk designation to the RAM 9, and converts the code signals stored in the RAM 9 into the code signals stored in the RAM 9. A second circuit that allows rewriting is configured.

Note that instead of the switch 20 for selecting the clerk designation change mode, for example, a flip-flop circuit or the like connected to cooperate with an appropriate key switch installed in the input device 1 is used to select the clerk designation change mode in a so-called preset method. may be selected.

Next, the operation of the cash register having the above configuration will be explained.

It is assumed that the above cash register is first used by specifying, for example, clerk A. In addition, as ROM4, for example,
A PROM (programmable read-only memory) is used, and a program for registration processing related to product sales at a department store is stored in advance in this PROM.

Clerk A's designation operation for the above cash register is performed in the following steps.

First, when the power switch (not shown) of the cash register is turned on, the state determination circuit 11
is reset to the initial state in which the output terminal Q is set to low level "L". The low level signal “L” output from the state determination circuit 11 is output from the AND gate 17.
is applied to one input terminal of the gate 17 to close the gate 17. Further, the output signal "L" of the state determination circuit 11 is inverted to a high level "H" by the inverter 14, and this inverted signal "H" is passed through the delay circuit 15 to each other of the AND gates 13 and 16. is applied to the input terminal of , and both AND gates 13 and 16 are opened.

Then, when the switch 20 is opened and the operating mode specified by Clark is set, the high level signal "H" output from the resistor R1 connected to the DC power supply +V is applied to the other input terminal of the AND gate 18. , the AND gate 18 is held open, and the output signal "H" from the resistor R1 is inverted via the inverter 21,
This inverted signal "L" is applied to the other input terminal of the AND gate 22, and the AND gate 22 is kept closed. That is, the AND gate 22
applies a low level signal “L” to one input terminal of the OR gate 23.

Next, in order to specify a clerk for the cash register, when only the key switch 1-A for clerk specification corresponding to clerk A is pressed, the three input terminals of the OR gate 12 receive "H" and "L" signals. , "L" are applied, and therefore, the OR gate 12 outputs a high level signal "H". This signal "H" passes through the AND gate 13 which is opened as described above, and is applied to the set terminal S of the state determining circuit 11. Then,
This state determination circuit 11 is set and its output terminal Q is switched to a high level "H".

Then, the output signal "H" of the state determination circuit 11 is applied to one input terminal of the AND gate 17, and the gate 17 is switched to the open state. Further, the output signal “H” of the state determination circuit 11 is inverted via the inverter 14, and this inverted signal “L” is applied to the delay circuit 15.
This delay circuit 15, based on its delay operation,
During the delay time τ, a high level signal "H" in the previous output state is output. Therefore, during this delay time τ,
A high level signal "H" is applied to the other input terminal of each AND gate 13 and 16, and both AND gates 13 and 16 are kept open.

On the other hand, as mentioned above, at the same time as the key switch 1-A for clerk designation is pressed, a code signal indicating the code assigned to clerk A is transmitted.
It is sent from the key determination circuit 2. As described above, this code signal passes through AND gates 16, 17, and 18 which are in an open state, and is applied to the other input terminal of OR gate 23.

As described above, the OR gate 23 has one terminal applied with the signal "L" from the AND gate 22, and therefore allows the code signal to pass through, and this code signal is sent to a predetermined area of the RAM 9. be remembered.

Thereafter, when the delay operation of the delay circuit 25 is completed and the delay circuit 15 outputs the low level signal "L" as described above, this signal "L"
is applied to the other input terminal of each AND gate 13 and 16, and both AND gates 13 and 1
6 returns to the closed state again. Therefore, from this point on, even if any one key of the clerk designation key switch of the input device 1 is pressed,
The signal “H” from OR gate 12 is sent to AND gate 1
3, this AND gate 13 prevents the signal "H" from passing, and therefore, the state determination circuit 11 is held in the set state. Further, the AND gate 16 prevents passage of the code signal corresponding to the pressed key switch for clerk designation sent from the key determination circuit 2, and therefore, this code signal is not input to the RAM 9.

In this way, the RAM 9 stores only the code signal of clerk A, which is the first designated clerk, and therefore, the CPU 3 performs the following operations based only on the code signal of clerk A.
A predetermined registration process is performed according to the registration process program that continues from the ROM 4. Now, Clark A for the above cash register
The specified operation is completed.

Next, an example of registration processing related to product sales using the cash register will be described.

The above cash register was first specified by Clerk A as described above, and then specified by Clerk B.
The registration process has been performed.

First, regarding the products sold by Clark A, for each product type, Clark A operates a predetermined key such as a numeric keypad (not shown) on the input device 1, and registers information such as the code of each product and the number of units sold. Perform input operations. Through this input operation, the registered information is transmitted to the CPU 3 via the key determination circuit 2.
, the CPU 3 calculates, for example, the sales amount for each product type, the total sales amount, etc. according to the program sequentially read out from the ROM 4, and these registered processing data are
The information is compared with the code signal in RAM 9 to confirm that it is related to Clerk A, and is sequentially stored in a predetermined area 5A in RAM 5.
Next, in order to register the products sold by Clark B, first click the switch 20.
is closed and set to the clerk specification change operation mode.

When the switch 20 is closed, the DC power supply +
V is grounded through the resistor R1 and the switch 20, so the voltage at the output side of the resistor R1 is set to a low level.

The output low level signal “L” of the resistor R1 is
is input to the other input terminal of the AND gate 18,
The AND gate 18 is switched to the closed state and applies a low level signal “L” to the other input terminal of the OR gate 23. Further, the output signal "L" of the resistor R is inverted to a high level by the inverter 21, and this inverted signal "H" is applied to the other input terminal of the AND gate 22, and the gate 22 is opened. held in state.

Next, when the key switch 1-B for specifying clerk of the input device 1 is pressed, the code signal of clerk B is sent from the key determination circuit 2. As described above, this code signal passes through the AND gate 22 which is in an open state, and is applied to one input terminal of the OR gate 23. As mentioned above, the low level signal "L" is applied from the AND gate 18 to the other input terminal of this OR gate 23, and therefore, this OR gate 23 passes the code signal of Clark B, and This code signal is stored in a predetermined area of RAM9.

On the other hand, the state determination circuit 11 remains in the set state, and therefore, as described above, the AND gates 13 and 16 are held in the closed state.

Afterwards, in the same manner as described above, Clark B.
Press a predetermined key on input device 1 to select Clerk B.
When the user performs the input operation of the registration information related to the above, a digital signal of the registration information related to the clerk B is inputted from the key determination circuit 2 to the CPU 3. And this CPU
3, according to the program that is successively output from the ROM 4 described above, register processing data such as the sales amount for each product type of the sales item and the total sales amount are input into the predetermined area 5B of the RAM 5, as described above. do.

Then, when a settlement command key (not shown) of the input device 1 is pressed, the registration processing data stored in the RAM 5 is sequentially input to the display device 6 and the printing device 7.

Based on the registration processing data, the display device 6 sequentially displays the sales amount for each product sold by Clerk A, the sales amount for each product sold by Clerk B, the total sales amount of the product sales, etc. Visibly display.

Based on the registration processing data, the printing device 7 sequentially prints the registration date 31, the name or code of clerk A 32-1, and the display 32 on the sheet 30, as shown in FIG. -1 Clark A
Product department code 33-1 and sales amount 34-1 for each product sold, and display 32-2 of clerk B's name or code, and display 3
Product department code 33-2 and sales amount 34- for each product sold by Clerk B in 2-2
2, and a receipt with the total sales amount of 35, etc. related to the transaction printed on it will be issued. As you can see from this receipt, even though the clerk designation has been changed, the total sales amount for different registration information is displayed, and in this way, the registration process for each clerk is done using one electronic cash register. It can be done.

In this manner, when the CPU 3 completes the above-described product sales registration processing operation, it applies a high level signal "H" representing the completion to the reset terminal R of the state determination circuit 11. Therefore, the state determining circuit 11 is reset and switches its output terminal Q to the low level "L". That is, as described above, the state returns to the state before the specifying operation of clerk A was performed.

In addition, among the sales products mentioned above, Clark A,
If products sold by a clerk other than B are included, in the same manner as described above, by closing the switch 20 and performing a clerk change operation in the clerk designation change operation mode, registration processing related to product sales can be performed. I can do it.

In this way, in the cash register with the above configuration, registration processing is performed in the operating mode specified by the clerk, as in the conventional type.
During the registration process for one transaction, the switch 20 is closed and a key switch for specifying a clerk is pressed to change the clerk designation, thereby allowing multiple clerks to be registered in one cash register. Transaction registration processing operations can be completed continuously. In particular, receipts for transactions such as product sales can be issued at one time, and the registration process can be performed in a shorter time, resulting in better operability.

The switch 20 of the operation mode selection circuit 10 described above is installed outside the housing of the cash register, and the operator can switch the switch 20 at will.
The switch 20 is not limited to the one in which the operating mode is selected by performing a switching operation of 0, but the switch 20 is installed in the housing of the cash register and the operating mode is set when the register is manufactured. You can also do this.

Effects of the Invention According to the present invention, in particular, only during the registration processing operation based on the output of the state determination circuit, the code signal output from the key determination circuit is introduced into the memory device by operating the key switch for clerk designation. a first circuit (a circuit of gates 16 and 17) that prohibits the code signal and introduces the code signal into the memory device except during the operation; and during the registration processing operation;
Only when the switch for setting the clerk designation change mode and the switch for setting the clerk designation change mode are operated, the code signal outputted from the key judgment circuit by the operation of the key switch for clerk designation is transmitted as described above. A second circuit (gate 22) is installed in the memory device to permit rewriting of the code signal stored in the memory device, and the second circuit (gate 22) is installed in the memory device to permit rewriting of the code signal stored in the memory device. 2 circuit (gate 2
2), the code signal of the operated key switch for clerk designation is introduced into the memory device so that the clerk designation can be changed,
Even when several clerks register one customer, the registration process can be performed by simply installing one cash register, increasing versatility, reducing capital investment, and efficient use of space. I can do it.

[Brief explanation of drawings]

Fig. 1 is a block diagram of a conventional cash register, Fig. 2 is a circuit diagram of a cash register according to an embodiment of the present invention, and Fig. 3 shows an example of a receipt issued by the register shown in Fig. 2. 4 is a flowchart of the operation in the register of FIG. 2. 1...Input device, 1-A, 1-B, 1-C...
Switch for clerk designation, 2...Key determination circuit, 3...Central processing unit (CPU), 4...ROM,
5...RAM, 6...Display device, 7...Printing device, 9...Memory device (RAM), 10...Operation mode selection circuit, 11...State determination circuit, 15...
...Delay circuit, 16 and 17...AND gate forming the first circuit, 20...Switch for changing Clark specification, 22...AND gate forming the second circuit, +V...DC power supply, R ……resistance.

Claims (1)

[Scope of Claims] 1. A plurality of key switches for clerk designation corresponding to each clerk, and a key determination circuit that outputs a code signal corresponding to the signal of the operated key switch when the key switch for clerk designation is operated. a memory device that stores the code signal output from the key determination circuit; and a central processing unit (CPU) that executes a predetermined registration process based only on the code signal indicating the clerk stored in the memory device. and a status determination circuit that determines whether or not the registration processing operation has ended, and an output from the key determination circuit that is determined by operating a key switch for clerk designation only during the registration processing operation based on the output of the status determination circuit. a first circuit that prohibits introduction of the code signal into the memory device and introduces the code signal into the memory device except during the operation; and a switch for setting a clerk designation change mode during the registration processing operation. and, only when the switch for setting the clerk designation change mode is operated, a code signal output from the key determination circuit based on the operation of the clerk designation key switch is introduced into the memory device, and the memory device and a second circuit that permits the rewriting of the code signal stored in the code signal, and even during the registration processing operation for one customer, the key switch for clerk designation operated by the operation of the switch and the second circuit is An electronic cash register that introduces a code signal into a memory device to cause changes in clerk specifications.