JPS62107396A - Electronic type cash register - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION A) Field of Industrial Application The present invention relates to an electronic cash register configured to register monetary registration information related to product sales in a non-volatile memory.

(B) Conventional technology Conventionally, in electronic cash registers, as shown in, for example, Japanese Patent Laid-Open No. 52-42341, the total sales amount and total sales quantity are recorded by department or by department as daily product sales information. It is configured such that the transaction is classified into C and B and stored in the memory, and after the contents of the memory are printed by the payment operation, the memory is cleared. And for this purpose, memory is generally random access memory (
KAM) is used, and since data can be written and erased electrically in RAM, stored data may be destroyed due to factors such as power outages, failures, static electricity, or maintenance repairs. It was difficult to store it in memory.

On the other hand, some users wish to memorize at least one daily sales total and read it out and use it, for example, when filing tax returns once a year.
M had the problem that data protection was not reliable.

Problems to be Solved by the Invention The present invention has been made to solve the above-mentioned problems.
It is an object of the present invention to provide an electronic cash register that can reliably protect stored data.

(b)) Means for solving the problem The present invention is a non-volatile memory in which cash registration information cannot be erased separately from the RAM.) This enables writing by specifying the correct portion of write data, and inputting a category specification when reading. According to
It is configured to read out desired data.

(e)) Operation Since the present invention is constructed as described above, the storage data is completely protected, and data for each designated year can be read out, for example.

(f) Example Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram showing the circuit configuration of the electronic cash register of the present invention, in which (1) is a central processing unit (C: PU) constituting a control circuit, which is an arithmetic circuit.

Instruction decoder, Ilo:I controller,
It has a built-in memory control circuit, etc., and performs various arithmetic processing and controls each part based on each key operation signal of the keyboard (2). (3) is the address bus (4) and the data bus (
A read-only memory (ROM) connected to the CPU (11) via the CPU (5) executes the cash registration procedure and memory control performed by the CPU (11) based on each key operation signal of the keyboard (2). , output control, etc. are stored in advance.(6) is connected to the CPU (ll) via an address bus (4) and a data bus (5).
The data processed by the CPU (1) is stored in the RAM connected to the CPU (1).
) is read out. (7) is a display device that displays data input from the keyboard (2) or data processed by the CPU (1). (8) is a printer that prints on receipts and journal paper.
Printing is controlled from this point. (9) is CPU (1)
It is a FROM writer that controls writing or reading specific data to the nonvolatile memory IJ (I(]l) under the control of the nonvolatile memory 01. The nonvolatile memory 01 is composed of a well-known programmable read only memory (FROM). Once data is written in FROM, it cannot be erased, and the memory can be preserved semi-permanently even if it is separated from memory. ) are drive circuits that are connected to each other and drive the keyboard (2), display (7), and printer (8), respectively.

Figure 2 is a diagram showing the key arrangement of the keyboard (2), with 14
Reference numeral 1 indicates a mode control lock, and in response to the insertion and rotation of a predetermined key (not shown), the [OFF J Money Registration "REG"
The following modes are selected: J, inspection rXJ, settlement "Z", and setting "P". In addition, the keyboard (2) is provided with a numeric keypad 0511 for entering numbers, a department key (161, and a transaction key +171), and a transaction key (171) includes a total/cash total key "CASH" (17a), a quick-"ST" ” (17b)
・Currency exchange -+ -r +/NS J (17C), multiplied by 11
F+-r X J (17d), ELR key “ELRJ
(17e), correction key “■OI D J (17f)
etc. are arranged.

Figure 3 is a diagram showing the specific circuit configuration of the FROM writer (9) and the non-volatile memo.
) is connected to the address bus (4) and data bus (5) by the connector (1&), and the connector Oc
The non-volatile memory I+101 is connected by J.

■The cause is the address bus (4) [A11, A12. A1
3. A15" address signal line is connected to the decoder, and its output lines "MOE, CKD%CKAL, CKA
H, CKP'' are connected to five latch circuits ① to ②. The data signal lines ``Do~D7.1'' of the data bus (5) are connected to the latch circuits ■~■, while the output lines of the latch circuits ■~■ are connected to the non-volatile The sex medium is connected to Tsukuda on the 7th month, and the latch circuit is fixed.
The output line of the gate circuit is connected to the non-volatile memory 0 through the gate circuit.
■Connected to. Non-volatile memory IJ (Ill is composed of three FROMIC chips 01).

- storage capacity of each FROM is 65536 bits,
Total 196. It has a storage capacity of /108 bits.

The decoder group receives the control signal Cl from the CPU (ll).
The address signal lines (Al t, Al 2, A13) of the address bus (4) are selectively enabled from the OR month.
, A15), a decode output (MOE) is generated by the selection data that selects the latch circuit (231), and is supplied to each chip of the latch circuit and the non-volatile memory 1 [Fl]. On the other hand, the decoder (21)
is selectively activated by the control signal (IOW) from the CPU (11) and is input via the address signal lines (A11, A12, A13, A15) of the address bus (4) @ f24) ( Depending on the selection data that selects 6+ (support), the decode output (CKD, CKA
L, CKAH, CKP), and the latch circuit (221
Examples are provided to four mothers.

As a result, when the decode output (CKD) is input to the latch circuit, the data bus (5
) The 8-bit write data to the non-volatile memory January 11 transferred via When the decode output (A) is input to the latch circuit, 8-bit read data read from the nonvolatile memory (101) is latched.
) to CPU(1). When the decode output (CKAL) is input to the latch circuit (to),
Non-volatile memory (
Address data lower than 101 is latched. When the decode output (CKAH) is input to the latch circuit ■, the upper address data of the non-volatile memory IJ (II) and the chip select data of the non-volatile memory January ID are transferred via the data bus (5). is latched.And when the decode output (CKP) is input to the latch circuit, the control data for writing to the nonvolatile memory (10) transferred via the data bus (5) is latched. Write command signals to each chip of non-volatile memo 101 (MPGMl, MPGM2.MPGM3), control command signals to the variable voltage generation circuit (VPE, PWOW)
Control command signal (BDE) for outputting the 8-bit write data of latch circuit
occurs.

FIG. 4 is a diagram showing the memory arrangement of the non-volatile memory (1), where (IOA) is the area where monetary registration data is stored, and 80-bit data per information number is stored in 242
194,240 bits are allocated so that eight pieces can be stored. Further, (10B) is an area in which classification designation data of write data is stored, and a number of 1,280 bits is allocated to which data of @32 bits can be written per designation and %40 designation can be stored.

Next, a description will be given based on a flowchart for determining the operation number of the present invention having such a configuration.

First, to explain how to specify the classification, turn the mode control lock +141 to the setting "P" mode, then enter the operator's unique identification code number using the numeric keypad (151) on the keyboard (2). Operate the CASH key (17a).The CPUtll that detected the CASH key signal determines whether or not it is set to PJ mode in step (501), and then operates the CASH key (17a) in step (502).
17a) It is determined whether the operation in step 17a) is the first or second time, that is, it is determined whether the second time flag is set. now,
The CASH key (17a) is the first operation, and the CP
Proceed to U (1111 step (503)), and it is determined whether the input identification code number is a pre-registered identification code number, and if it is incorrect, an alarm is generated as an error, and if it is correct, step (503) is performed. 504) and proceed to CP
The CPU (11) sequentially starts searching from the beginning of the category specification area (1QB) of the non-volatile memo January 1■ via the above-mentioned FROM writer (9) and reads out the latest category specification number. The process proceeds to step (505), and it is determined whether or not the classification specified area (10B) has been specified as the entire area. If it has been specified, an error is detected, and if there is an empty area, the latest read out in step (506) is performed. Display the category designation number, and press the CASH key (1) in step (5a77).
7a) After setting the second flag indicating that the key has been operated, the process returns to step 508J to accept the next key.

Then, input the 4-digit classification data and operate the CASH key (17a) again.
) (502 Includes a check to determine whether the second flag is set or not.The second flag has already been set in step (5[]7), and CPUtll proceeds to step (509). The 4-digit classification designation data is temporarily stored.Then, in step (510), the classification designation area (1[]B) of the non-volatile memo IJ+101 is sequentially searched from the beginning, and the address of the empty area of Gishin is read. At the same time, it is determined whether the 4-digit classification designation data input in step (511) has already been designated, and if it has been designated, an error is determined.

If it has not been specified, in step (512) the area (10A
) and read and store the address of the latest empty area. Next (in this step (513), CP u (1) writes the input partition designation data and the latest empty area address data of the area (10A) to the latest window address of the 1 partition designation area CI DB ). Next, the money registration data area of RAM (51) is cleared and the setting work is completed.

Therefore, for example, as shown in FIG.
The data up to 1984 is entered in the IQl area (10A), and is used up to "Designation 4" in the classification designation area Cl0B).If you want to designate the data for 1985, enter r1985J. Input from numeric keypad O5 and CAS
When the H key (17a) is operated, Ci'U (1) advances to step (509) [After storing the data of 1985J, it searches the classification specified area (10B) of the non-volatile memo January 1 The empty area address, that is, the area of "designation 5" is read out and stored. Further, the CPU u (11) searches the area (10A) of the non-volatile memory tool and reads and stores the address of the latest empty area, that is, the address of the area (10A) shown with diagonal lines.Subsequently, in step (513), the partition designation area CI
DB)'s latest empty area, that is, the "designated 5" area (10B
), the input identification code number "1985" and the address data of the latest empty area of the area (IOA), that is, the area (10A) are stored together. This shows that the data for 1985 was stored from the area (10A) in the designated area (10B). These controls are performed via the FROM writer (9) shown in FIG.

After specifying the category in this way, set the mode control lock (141) to the cash register [REGJ] position,
When you perform the registration operation, sales data is registered in the RAM (51) by product category, transaction, etc., just like a normal electronic cash register. When the control lock (141) is set to the settlement rZJ position and the settlement operation is performed, the CPU (1) moves to the RAM in step (601) as shown in FIG.
(The data stored in 51 is sequentially read out and supplied to the printer (81) to print out a settlement report. At this time, when the total sales amount for the day is printed, at the same time the CPU
(1) is the FROM writer (9) at step (605)
and stores the latest free area 1 of the cash registration data area (10A) of the non-volatile memo January 101 to store the total sales amount data. Then, when the payment report finishes printing, C
P Ull clears the registered data of RAM (51) in step C607) and ends the payment operation.In this way, the daily total sales amount data is stored in the non-volatile memo January 10
1 is stored sequentially (.

Next, the operation of reading data stored in the non-volatile memory (1) will be explained based on the flowchart of FIG.

First, switch the mode control lock (14) to the setting rPJ position, enter the classification designation number, and press the +/NS key (17C).
), the C P that detected the Na/NS key signal
U+11Lt, step (701) Te setting [After determining whether or not it is PJ mode, and then temporarily storing the classification designation number input in step (702), the classification designation area (10B) of non-volatile memory 0■ are searched sequentially from the beginning, and it is determined whether the category designation number input in step (704) has already been specified.If it has not been specified, an error will occur, but if it has been specified, the category designation area (10
The address data stored in B) is read out and temporarily stored as a read start address in step (706). Next (in this step (707), the non-volatile memo IJ tl (D
The division designation area (10B) is searched again to detect whether the division designation number next to the division designation number read out first has been designated, and if it has been designated, that designation number is stored. The stored address data is read out from the division designation area (10B) located in the area (10B) and temporarily stored as the read end address in step (709). , step (710) advances to non-volatile memo U (1)
The money registration data area (10A) is searched to find the address of the area where the last money registration data was written, and this is read out and temporarily stored as the end address. This result C
P U (11) sequentially reads out the cash registration data area (10A) of the non-volatile memo January 101 from the start address read earlier in step (7N), sequentially records it with the printer (8), and temporarily stores it. Naming is performed when the end address is reached.The read operation of the non-volatile memory claw ends when the end address is reached.

Therefore, for example, if you try to read data registered in 1985, it will say "1985J and then Φ/
When the NS key (17c) is operated, the start address is read from the category designation area (10B) where "1985" is stored, and the corresponding check area (10A, ) for the cash register data of the non-volatile memo January 1 stamp is read. The stored data is read from the area and printed sequentially. This allows the daily total sales amount data for 1985 to be printed and confirmed. In this way, the stored data for the year for which output is desired can be read from the nonvolatile memory.

In addition, in the above explanation (i), an example was shown in which the classification is specified by year, but it is also possible to specify even more precisely by one division, such as by quarter. It is not limited to this, and may be set as appropriate depending on the amount of information to be stored.

(G) Effects of the Invention As mentioned above, the electronic cash register of the present invention stores the daily total sales amount data in a non-volatile memory by specifying categories such as by year, and when reading It is configured to read only the desired data by inputting classification data, and by ensuring the protection of the data, it improves usability such as being able to use it as data when filing tax returns, and has extremely practical effects. It's big.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing the configuration of the electronic cash register of the present invention, FIG. 2 is a plan view showing the keyboard arrangement of FIG. 1, and FIG. 3 is a block diagram showing the configuration of the main parts of FIG. FIG. 4 is a schematic diagram showing the structure of the nonvolatile memory shown in FIG. 1, and FIGS. 5 and 6. FIG. 7 is a flowchart showing the operating state of FIG. 1. (1)...CPU, (2)...-Keyboard, (3)
... OM, (6) ... RAM, (7) ... Display, (8) ... Printer, (9) ... FROM writer, lot ... Non-volatile memory.

Claims (2)

[Claims] (1) A keyboard for inputting money registration data, category designation data, etc., a central processing unit for executing predetermined calculations or control in response to key signals from the keyboard, a nonvolatile memory, and control of the central processing unit. a memory control device that controls writing or reading of predetermined data into a predetermined area of the nonvolatile memory based on the above, and appropriately distinguishes specific monetary registration data and stored monetary registration data in the nonvolatile memory. An electronic cash register characterized in that it is configured to store category designation data input from a keyboard and output money registration data related to the category designation data. (2) The electronic cash register according to claim 1, wherein the electronic cash register is configured to prohibit storage of the same category designation data when storing the category designation data in the nonvolatile memory.