KR920004390B1 - Keyboard for bank's terminals - Google Patents

Abstract

The keyboard unit includes a one-chip microprocessor (11) for writing and reading customer data to and from the magnetic stripes of a deposit card, and for searching the condition of the keyboard unit in accordance with control signals. A bank terminal communication circuit (14) transfers 5-digit keyboard data through a NAND gate (ND1) and an inverter (N1), while a stripe communication circuit (15) transfers data between the magnetic tripes and a read/write device. First and second ports (20(21) controls a one-chip microprocessor (11), and drives an LED driving circuit respectively. The keyboard unit further includes an encoder (ED1) and decoders (DC1)(DC2).

Description

Keyboard equipment of bank terminal

1 is a communication block diagram made between a host computer and a bank terminal device.

2 is a circuit diagram of a keyboard apparatus according to an embodiment of the present invention.

3 is a timing chart of data KR, KD, LD supplied to the keyboard apparatus shown in FIG.

4 is a timing chart of data when the typewriter keyboard 9 is connected to the keyboard 8 of the present invention.

5 is a read timing chart illustrating a keyboard apparatus of the present invention.

6 is a read and write timing chart illustrating the keyboard apparatus of the present invention.

* Explanation of symbols for main parts of the drawings

1: host computer 2, 3: modem

4: Terminal control device 5, 5 ': Bank terminal

6: monitor 7: bank printing device

8: keyboard 10: typewriter keyboard

10: reset circuit 11: one-chip microprocessor

12: clock generator 13: communication clock generator

14: bank terminal communication circuit 15: communication circuit for magnetic stripe device

16: power supply unit 17: ROM

18: RAM 20: first port portion

21: 2nd port part F1, F2: D type flip-flop

DC1, DC2: Decoder ADC: Address Decoder

BF1: Buffer LDR1, LDR2: LED Driver Circuit

ED1: Encoder N1-N25: Inverter

ND1-ND5: NAND gate OR1-OR4: OA gate

[Application field and background]

The present invention relates to a keyboard apparatus of a bank terminal, which is equipped with a magnetic stripe device for recording and reading data in a magnetic stripe of a deposit account on a keyboard which is an input device.

A bank terminal used in a bank for processing information and other data for a large number of customers has a communication network formed as shown in FIG. 1, that is, a host computer 1 and a plurality of bank terminals 5, 5 '. Transmission and reception of data (for example, customer's deposit status and other information) between the two is performed through transmission lines through the modems 2 and 3 and the terminal control apparatus 4. By the way, the bank terminal (5, 5'-) is equipped with a keyboard (8) attached to the monitor (6), bankbook printing device (7) and typewriter keyboard (9) in parallel, unlike other general terminals, The user operating the bank terminal 5, 5'- reads the data recorded on the magnetic stripe in the bank account of numerous customers or prints the data in the bank account. 5-9).

However, in the bank terminals 5 and 5'- used in the related art, a magnetic stripe device that reads data on the magnetic stripe of the bank account has been used in the bankbook printing device 7, but this is printed in the bankbook printing. The drawback is that the device 7 not only increases in size but also becomes expensive. In addition, unlike the method of mounting on the passbook printing device 7, the magnetic stripe device has been introduced to the keyboard 8, but this method is also capable of only reading the data of the magnetic stripe. This caused inconveniences in use. In addition, when the keyboard 8 equipped with the magnetic stripe device is operated, only the data recorded on the magnetic stripe of the bank account is read out, and thus the data on the magnetic stripe according to the disappearance of the data recorded on the magnetic stripe or other circumstances is read. It is necessary to record the data.

[Purpose of invention]

Accordingly, the present invention has been made in view of the above circumstances, and according to the keyboard data request signal transmitted from a bank terminal by attaching a magnetic stripe device for recording and reading data to a magnetic stripe of a bank account to the keyboard, By sending the keyon state of the keyboard to the bank terminal and receiving the LED data transmitted from the bank terminal, the LED can be turned on / off, and the bank reads the data read out by the magnetic stripe device to the bank terminal. It is an object of the present invention to provide a keyboard apparatus of a bank terminal which can record data transmitted from a terminal to the magnetic stripe apparatus.

[Configuration of Invention]

The keyboard apparatus of the bank terminal of the present invention for achieving the above object, the reset circuit 10, the clock generator 12, the communication clock generator 13, D-type flip-flops (F1, F2), ROM ( 17), a RAM 18 and a power supply unit 16, which analyzes a system program recorded in the ROM 17 and searches only the keyboard seat by control signals RST7.5 and RST5.5. In addition, the one-chip microprocessor 11 for controlling and controlling data to be transmitted and received between the bank terminal 5 and the bank account and the magnetic stripe device, and the NAND gate ND1 and the inverter for 5 bytes of keyboard data KD, for example. (N1) for transmitting data (D0-D7) between the bank terminal communication circuit 14, which is in charge of communication with the bank terminal 5, the magnetic stripe of the bankbook and the magnetic stripe device, and the one-chip microprocessor 11; Communication circuit for magnetic stripe device 15, timer While searching the keyboard seat while operating the first port unit 20 for controlling the operation of the one-chip microprocessor 11, LED driving circuits (LDR1, LDR2) for supplying power (B +) when the LED is off The second port unit 21 for searching the keyboard seat, the encoder ED1 for changing data on the situation of the keyboard seat to the data corresponding to the first port unit 20, and the first port unit. Characterized in that consisting of the decoder (DC1, DC2) for outputting the search data (PB0-PB7) of the keyboard seat through the keyboard (20).

EXAMPLE

Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

2 is a circuit diagram of the keyboard apparatus according to the first embodiment of the present invention, and a magnetic stripe apparatus capable of reading and writing the bank terminal 5 shown in FIG. 1 is attached to the keyboard 8. Thus, data is transmitted and received between the bank terminal 5 and the magnetic stripe of the bank account and the seat of the keyboard 8. First, when the power is turned on to use the keyboard apparatus of the bank terminal of the present invention, a stable power supply (VCC, B +) is supplied from the power supply unit 16 to each circuit unit, while a reset circuit 10 connected to the one chip microprocessor 11 is provided. The one-chip microprocessor 11 is reset to make all the circuit parts sufficiently initial.

Then, the data processing speed of the one-chip microprocessor 11 is determined by the clock signal of the clock generator 12, and the bank terminal communication circuit 14 and the magnetic stripe device are used by the clock signal of the communication clock generator 12. The data processing speed of the communication circuit 15 is also determined.

On the other hand, the one-chip microprocessor 11 interprets the system program already recorded in the ROM 17 and transmits the keyboard data request signal shown in FIG. 3 transmitted from the bank terminal 5 shown in FIG. KR), i.e., the result of pressing a key of a keyboard seat not shown when the keyboard data request signal KR is at a low level, and recalls the 5 bytes of keyboard data KD shown in FIG. It transmits to the bank terminal 5, and receives the 5-byte LED data LD shown in FIG. 3 transmitted from the bank terminal 5 when the keyboard data request signal KR is at a high level. It transmits to the keyboard seat which is not shown so that the LED is controlled and controlled to blink and turn off. In addition, the one-chip microprocessor 11 transmits the 5 bytes of LED data LD shown in FIG. 3 read by the blinking and extinguishing of the corresponding LED to the bank terminal 5 shown in FIG. From this, the 5 bytes of keyboard data KD shown in FIG. 3 received from the bank terminal 5 are included in the communication circuit 15 for the magnetic stripe device, the second port unit 21 and the LED driving circuit ( LDR1, LDR2) to control the recording on the magnetic stripe of the bank account.

Then, the 5 bytes of LED data (LD0-LD4) shown in FIG. 3 are written such that the LED data LD transmitted from the bank terminal 5 is recorded in the magnetic stripe of the bank account by the blinking and extinguishing of the corresponding LED. of the bar, the 1-byte data that are divided into LED (LD0) of the keyboard is wood type code ^(20-23) and Command ^(24-27) are divided into the presence or absence of the record data or the like while the remaining 4 bytes LED The data LD1-LD4 are divided into LED lighting data (including the recording data). In contrast, the keyboard data KD read out from the magnetic stripe of the bank account by flashing and extinguishing the corresponding LED is stored under the control of the encoder ED1 and the first port unit 20 and the one chip microprocessor 11. The bank terminal communication circuit 14 is operated to be divided into 5 bytes of keyboard data KD0-KD4 shown in FIG. 3 so as to be transmitted to the bank terminal 5 shown in FIG. Wood keyboard data (KD0) of the double one byte keyboard wood type code ^(20-23) and the response signal ^(24-27; of the transmission of the data of the magnetic stripe unit, a data transmission of the bank book, a magnetic stripe unit The remaining 4 bytes of data (KD1-KD4) are divided into key data, key data (level), data of the magnetic stripe device, and data of the bank account.

)에 의해 일시적으로 저장해 놓은 메모리영역이고, 은행단말통신회로(14)는 5바이트의 키보우드데이터(KD)를 낸드게이트(ND1)와 인버터(N1)를 통해 제 1 도에 도시된 은행단말기(5)와의 통신을 담당한다.The RAM 18 outputs data D0-D7 and the like necessary for the one-chip microprocessor 11 to operate.

The bank terminal communication circuit 14 stores 5 bytes of keyboard data KD through the NAND gate ND1 and the inverter N1. It is in charge of communication with 5).

And, the communication circuit for the magnetic stripe device 15 is responsible for transmitting and receiving data (D0-D7) between the magnetic stripe of the bank account and the magnetic stripe device and the one-chip microprocessor 11, of which the bank account and The data of the magnetic stripe device is serial data while the data of the one chip microprocessor 11 is transmitted as parallel data.

The first port unit 20 actually searches for a keyboard with a key switch and has a built-in timer. As the timer is operated by a clock signal TI supplied from the communication clock generator 13, The signal of the output terminal TO is supplied to the one chip microprocessor 11 through the inverter N11 to control the operation of the one chip microprocessor 11. The second port unit 21 searches for the keyboard seat by operating the LED driving circuits LDR1 and LDR2 for supplying power B + when the LED is blinking / turning off. Then, the situation of the keyboard seat is changed to data corresponding to the first port part 20 in the encoder ED1 and supplied to the first port part 20 through the NAND gate ND5, thereby providing the first port part. The search data PB0-PB2 of the keyboard seat (20) is output by the two decoders DC1 and DC2 to the actual keyboard seat.

에 맞게 은행단말 및 자기스트라이프장치용 통신회로(14, 15)와 제 1 및 제 2 포트부(20, 21), ROM(17) 및 RAM(18)을 각기 지정함으로서, 상기 원칩마이크로프로세서(11)와 각회로(14, 15, 17, 18, 20, 21)간의 데이터(D0-D7)송수신이 가능하도록 했다. 그리고, 상기 원칩마이크로프로세서(11)의 데이터(AD0-AD7)는 버퍼(BF1)을 통해 어드레스신호(A0-A7)로서 상기 ROM(17) 또는 RAM(18)에 각기 공급하고, 상기 원칩마이크로프로세서(11)의 클록출력신호(CLD)에 의해 D형 플립플롭(F1,F2)이 동작되어 다시 준비신호(RD)로 공급받는다.The address decoder ADC interprets the address signals A13-A15 of the one-chip microprocessor 11 and outputs the signals according to the addresses already assigned.

The one-chip microprocessor 11 by designating the communication circuits 14 and 15 for the bank terminal and the magnetic stripe device, the first and second port portions 20 and 21, the ROM 17 and the RAM 18 according to the designation. ) And each circuit (14, 15, 17, 18, 20, 21) to transmit and receive data (D0-D7). The data AD0-AD7 of the one-chip microprocessor 11 is supplied to the ROM 17 or the RAM 18 as an address signal A0-A7 through the buffer BF1, respectively, and the one-chip microprocessor The D-type flip-flops F1 and F2 are operated by the clock output signal CLD of (11) to be supplied as the ready signal RD again.

4 shows a timing chart of data when the typewriter key board 9 is connected to the keyboard 8 of the present invention. The data between the bank terminal 5 and the keyboard 8 shown in FIG. KR, KD, LD) are transmitted and received in the same state as in FIGS. 4A through 4C, and data KR, KD, LD between the keyboard 8 and the typewriter keyboard 9 are in FIGS. 4D through 4F. It will be transmitted and received in the same state.

On the other hand, the communication circuit 15 for the magnetic stripe device shown in FIG. 2 is supplied with various signals through the connected inverters N10-N15 and OA gates OR1-OR4, so that the signals shown in FIG. While operating by (BSY, RCP, RDD), the read / write is operated by various signals shown in FIG. 6, and the inverters N15-N18 and NAND connected to the communication circuit 15 for the magnetic stripe device. The control signal RST6.5 is supplied to the one chip microprocessor 11 through the gates ND3, ND4, and ND8. As described above, the main operation of the one-chip microprocessor 11 is to operate the address decoder ADC so that the communication circuits 14 and 15 for the bank terminal and the magnetic stripe device, the first and second port units 20 and 21, the ROM (17) and RAM 18 are mutually selected and the keyboard seat is searched through the decoders DC1 and DC2, the LED driving circuits LDR1 and LDR2, and the encoder ED1. At this time, if a key switch is pressed while searching for the keyboard seat, the 5-byte LED data LD is supplied to the encoder ED1 and then supplied to the first port unit 20 through the NAND gate ND5. From this, the data AD0-AD7 of the first port portion 20 is stored in the RAM 18 via the data bus. The one-chip microprocessor 11 that controls and controls such operation continuously searches the keyboard seat as described above and receives a control signal RST5.5 by a timer of the first port unit 20. 5 bytes of the LED data LD stored in the designated place of the RAM 18 are read out and supplied to the input terminals D0-D7 of the second port portion 21, from which the second port portion ( 5 bytes of LED data (LD) passing through output terminal (PA0-PA7) (PC0-PC7) of 2) is supplied to LED of keyboard seat through two LED driving circuits (LDR1, LDR2) and turns on the corresponding LED. And control to turn off.

The one-chip microprocessor 11 is activated as the keyboard data request signal KR shown in FIG. 3 transmitted from the bank terminal 5 shown in FIG. 1 is supplied as the control signal RST7.5. The one-chip microprocessor 11 thus activated operates the bank terminal communication circuit 14 through an address decoder ADC to drive the keyboard shown in FIG. 3 through the NAND gate ND1 and the inverter N1. It is instructed to transmit data KD to the bank terminal 5. In addition, when the one-chip microprocessor 11 receives the 5-byte LED data LD shown in FIG. 3 from the bank terminal 5, the data LD is converted to the inverter N9 and the NAND gate. ND2 is supplied to the signal terminal RXD of the bank terminal communication circuit 14, from which the control signal RXR supplies a plurality of inverters N2, N17, N18 and NAND gates ND4, ND3, ND8. By changing the control signal (RST6.5) to start the one-chip microprocessor 11, by operating the address decoder (ADC) to the one-chip microprocessor 11 to the LED data (LD) to the RAM (18) Will be saved. In addition, the control signals WE, BSY, WCO, WDT, WTS, RCP, and RDD shown in FIG. 6 are received by the magnetic stripe device and the bank account, and the first and second port parts 20, 21 and a plurality of When supplied to the communication circuit 15 for the magnetic stripe device through the OR gates OR1-OR4 and the inverters N10-N14, the inverters N15-N18 and the NAND gates ND3, ND4, and ND8 are operated as described above. In operation, the one-chip microprocessor 11 is activated to store the magnetic stripe device and the deposit bank data in the RAM 18. In addition, when the recording data of the magnetic stripe device is prepared, the one-chip microprocessor 11 is started as described above, read out from the RAM 18, and instructs transmission to the communication circuit 5 for the magnetic stripe device. . In addition, the one-chip microprocessor 11 is periodically activated by the control signal RTS6.5 by the timer of the first port unit 20 so as to update the corresponding LED.

[Actions and effects]

As described above, according to the present invention, by mounting a magnetic stripe device for recording and reading data to and from the magnetic stripe of the bank account, the keyon state of the keyboard is changed according to the keyboard data request signal transmitted from the bank terminal. The LED may be turned on / off by transmitting to the bank terminal and receiving LED data transmitted from the bank terminal, and transmitting data read from the magnetic stripe device to the bank terminal while transmitting the data transmitted from the bank terminal to the bank terminal. It is possible to provide a keyboard apparatus of a bank terminal which can record on a magnetic stripe apparatus. In addition, the present invention can use the power of the keyboard as it is so that a separate power supply is not required, and the magnetic stripe device can be attached and detached as necessary, it is convenient for use.

Claims (1)

The reset circuit 10, the clock generator 12, the communication clock generator 13, the D-type flip-flops (F1, F2), ROM 17, RAM 18 and the power supply 16 By analyzing the system program recorded in the ROM 17, not only the search of the keyboard seat by the control signals RST7.5 and RST5.5, but also the data between the bank terminal 5 and the bank account and the magnetic stripe device. One-chip microprocessor 11 which controls and controls to transmit / receive, and a bank in charge of communicating with the bank terminal 5 through the NAND gate ND1 and the inverter N1, for example, 5 bytes of keyboard data KD. Built-in terminal communication circuit (14), magnetic stripe communication circuit (15) for self-strip device in charge of transmitting data (D0-D7) between the magnetic stripe and magnetic stripe of deposit account and the one-chip microprocessor (11) While searching the keyboard seat while the one chip microprocessor The first port portion 20 for controlling the operation of the stand 11, the second port portion for operating the LED drive circuit (LDR1, LDR2) for supplying the power (B +) when the LED is flashing off to search the keyboard seat (21), the encoder (ED1) for changing the data on the situation of the keyboard seat to the data corresponding to the first port portion 20, and the search data of the keyboard seat through the first port portion 20 Keyboard device of the bank terminal, characterized in that consisting of the decoder (DC1, DC2) for outputting (PB0-PB7) to the keyboard seat.

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