JPH0519932A - PIN code input device - Google Patents

Abstract

(57) [Summary] [Purpose] To be able to enter a PIN at a desired location without hindering effective use of the store. [Constitution] The personal identification number input device is composed of a key pad holder which is connected to the main body of the processing device by wire and a key pad which is detachably attached to the key pad holder.
The pad and keypad holder are provided with means for transmitting and receiving data in a combined form such as optical coupling, electromagnetic coupling, mechanical contact, etc. in a mounted state of both, and respond to a command for inputting a personal identification number from the processing apparatus main body. The password input by the customer's key operation is transmitted to the main body of the processing device in response to the transmission request command following the input request command.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a personal identification number input device for allowing a user such as a credit card or a cash card to input a personal identification number unique to the user.

[0002]

2. Description of the Related Art Conventionally, as a system in which a personal identification number needs to be input, there is an online system for paying the price using a credit card, a cash card (bank POS) or the like. When payment is made by such an online system, for example, Japanese Patent Application No. 60-275
As proposed in 473 etc., input data such as card data, sales amount, personal identification number, etc. into the transaction terminal device installed in the store and send these data to the center device online. Then, the center device side is configured to perform settlement processing.

In this case, it is determined whether the presenter of the card is the person himself / herself by having the presenter (customer) input the personal identification number registered in advance by the card owner. It is designed to check whether or not the numbers match. Then, when the presenter inputs the personal identification number, there is a possibility that the presenter may be known to the store clerk or a staff member. Therefore, in order to prevent such a situation, as shown in FIG.
The keypad 200 for inputting a personal identification number is wired to the transaction processing apparatus main body 110 which constitutes the transaction terminal device.
00, the key pad 200 is installed in a part of the store where the card presenter can stop by so that the input operation can be performed without being seen by a clerk or a staff member. .

[0004]

However, as shown in FIG.
In the conventional configuration of the above, the operation of inputting the personal identification number can be performed so as not to be seen by a store clerk or a clerk. However, the transaction processing apparatus main body 110 and the keypad 200 are wired cables 30.
Since they are linked by 0, the transaction processor main body 110 is installed only in the vicinity where the card presenter (customer) can stop. Usually, such a place is in the vicinity of a cash register or on a display case of products in a general store, but in a general store, it is not possible to place such a device in the vicinity of a visitor. There is a demand to store as many products as possible and use the store as effectively as possible. Therefore, the conventional configuration of FIG. 12 has a problem that it hinders effective use of the store.

Further, since these transaction terminal devices are premised on being installed indoors, when introduced into a store such as a gas station where payment is performed outdoors, the card presenter is required to enter the personal identification number. There is the inconvenience of having to get out of the car and go to the store just to enter.

The present invention has been made in view of the above problems, and its purpose is to present a card without interfering with effective use of a store and without going to a place where a transaction terminal device is installed. An object of the present invention is to provide a personal identification number input device by which a person himself / herself can input a personal identification number.

[0007]

SUMMARY OF THE INVENTION According to the present invention, a personal identification number input by a key operation in response to an input request command from a processing device body is provided to the processing device body in response to a transmission request command following the input request command. It is a personal identification number input device to send,
A key pad holder that is connected to the main body of the processing device by wire, and a key that is detachably attached to the key pad holder.
The key pad and the key pad holder are configured to include a pad, and data is transmitted and received between the key pad and the key pad holder by a coupling mode such as optical coupling, electromagnetic coupling, or mechanical contact in a mounted state of both. Means are further provided, and the personal identification number input by the key operation is transmitted to the processing device main body through the data transmission / reception means and the wire in response to a transmission request command from the processing device main body. The above object is achieved by providing a control means.

[0008]

According to the above-mentioned means, the keypad holder in which the personal identification number input device is connected to the main body of the processing apparatus by wire, and the keypad holder.
The key pad is detachably attached to the pad holder, and the key pad for inputting a personal identification number can be carried around. Therefore, the personal identification number can be input anywhere, inside or outside the store.
When the keypad is mounted on the keypad holder, the inputted personal identification number is transmitted to the processing apparatus main body in response to the transmission request command following the personal identification number input request command. Therefore, the main body of the processing device can be installed in a place where there is no hindrance to business activities in the store, and effective use of the store can be achieved, and there is no need to send the customer who inputs the personal identification number to the installation place of the processing device. Customer service is improved.

Further, by installing the processing apparatus main body in a place where the business activities in the store are not hindered, the quiet atmosphere of a store such as a jewelry store is destroyed by the sound of the slip output from the processing apparatus main body. Things will disappear.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to illustrated embodiments.

FIG. 1 is a block diagram showing the overall configuration of a transaction terminal device such as a credit card to which the present invention is applied. A transaction processing device main body 110, a connector 13 on the main body 110, and a cable cable 300. , The personal identification number input device 400 connected through the connector 14.

The personal identification number input device 400 comprises a key pad holder 401 and a key pad 402 which is detachably attached to the key pad holder 401.
The pad 402 and the key pad holder 401 are adapted to send and receive data by optical coupling in a mounted state of both.

As shown in detail in FIG. 2, the transaction processing apparatus main body 110 has a CPU 1 for controlling the entire apparatus, a ROM 2 for storing a program for overall control, a RAM 3 for storing various data, and a RAM 3 for storing various data. Display for operation guidance and echo back of input data 4, Keyboard for inputting transaction type and data input 5, Card reader for reading card data such as credit card 6, Communication with online center A modem 7 for modulating and demodulating a code to be transmitted at the time of communication, an NCU (network control unit) 8 for controlling an online line,
Encoder 9 for encrypting transmission data when transmitting data to keypad 402, Decoder 10 for decrypting reception data from keypad 402, Driver 11 for amplifying transmission data signal to keypad holder 401, key A receiver 12, which amplifies a received data signal from the pad holder 401,
Connector 13 for connecting to the keypad holder 401
It consists of and.

The operation of the transaction processing apparatus main body 110 is controlled by a program stored in the ROM 2.

The keypad holder 401 has a connector 14 for connecting to the transaction processing apparatus main body 110 and a data from the transaction processing apparatus main body 110, as shown in detail in FIG.
Light emitting element 17 for converting a digital signal into an optical signal, a light emitting element 17
15, a light receiving element 1 for converting an optical signal transmitted from the keypad 402 into a data signal.
8 and a receiver 16 for amplifying the data signal from the light receiving element 18.

The keypad 402 is a CPU 25 for controlling the entire keypad, and a ROM 2 storing a program.
6. A RAM 27 for storing various data, a display 28 for displaying the amount data transmitted from the transaction processing apparatus main body 110 and a personal identification number input from the keyboard 29, a personal identification number, etc. Keyboard 29, an encryption device 24 for encrypting transmission data when sending data to the transaction processing device body 110, a decryption device 23 for decrypting data received from the transaction processing device body 110,
The driver 22 for amplifying the transmission data signal to the transaction processing apparatus main body 110, the light emitting element 20 for converting the transmission data signal to the transaction processing apparatus main body 110 from an electric signal to an optical signal, and the transaction processing apparatus main body 110 The light receiving element 19 converts an optical signal into an electric signal, and the receiver 21 amplifies the electric signal from the light receiving element 19.

The operation of the keypad 110 is as follows.
It is controlled by a program stored in the ROM 26.

FIG. 4 shows the RO in the processing apparatus main body 110.
It is a memory map showing the storage areas of M2 and RAM3, and a program for controlling the processing apparatus main body 110 is stored in all storage areas of the ROM2. Also, R
In AM3, an area m01 for storing a process ID which is a basis of identification data to be encrypted and transmitted, a storage area m02 for storing card data, and an area m0 for storing an input amount of money.
3, a transmission buffer area m04 for temporarily storing transmission data to the keypad 402 and a reception buffer area m05 for temporarily storing reception data from the keypad 402 are provided. Of these, the transmission buffer area m04 has storage areas m041 to m047 as shown in FIG.
Is further subdivided into storage areas m041 to m04
7, data to be transmitted to the keypad 402 is assembled and transmitted to the keypad 402. Further, in the reception buffer area m05, as shown in FIG.
The data is further subdivided into storage areas m051 to m055, and the data received from the keypad 402 is temporarily stored in the storage areas m051 to m055.

FIG. 5 shows a ROM in the keypad 402.
2, a memory map showing the storage area of RAM3,
A program for controlling the keypad 402 is stored in the entire storage area of the ROM 26. RAM
27 includes a storage area m11 as a command pointer,
Storage area m12 as input pointer, keyboard 2
Area m13 for storing the input data from 9 and area m1 for storing the processing ID received from the processing apparatus main body 110.
4, an area m15 for storing the data of the member number which is a part of the card data, a transmission buffer area m16 for temporarily storing the transmission data of the processing apparatus main body 110, and the processing apparatus main body 110. A reception buffer area m17 for temporarily storing the reception data is provided. Of these, the transmission buffer area m15 is further subdivided into storage areas m161 to m165 as shown in FIG. 7E, and data to be transmitted to the processing apparatus main body 110 is assembled and processed in the storage areas m161 to m165. It is adapted to be transmitted to the apparatus main body 110. Further, in the reception buffer area m17, as shown in FIG.
Are further subdivided into storage areas m171 to m17
In step 7, the data received from the processing apparatus main body 1110 is temporarily stored.

Next, the operation of the above configuration will be described. (1) Transmission of data from the processing device main unit to the keypad
The contents of 04 are transferred to the encryptor 9. The encryption device 9 randomizes the input data in accordance with a predetermined rule, amplifies the data with the driver 11, and then the connector 13 and the cable cable 30.
0, and transmits to the keypad holder 401 through the connector 14.

In the keypad holder 401, the received data signal is amplified again by the driver 15, and the light emitting element 17 is driven by the amplified signal. As a result, the data signal is converted into an optical data signal.

The optical data signal transmitted from the light emitting element 17 is received by the light receiving element 19 of the keypad 402 mounted on the keypad holder 401, and the original data signal is converted from the optical data signal. Is converted to.

The data signal output from the light receiving element 19 is amplified by the receiver 19 and then guided to the decoder 23 where it is decoded and restored to the original data.

When the decoder 23 finishes restoring the data, it confirms that the data has been transmitted from the processor main body 110.
Notify U25.

(2) Transmission of data from the keypad to the processing unit main body When the CPU 25 of the keypad receives a data transmission request command from the processing unit main body 110, it is stored in the transmission buffer area m16 of the RAM 27. Data is encrypted 24
Transfer to.

The encryptor 24 encrypts the input data, amplifies it by the driver 22, and inputs it to the light emitting element 20. As a result, the encrypted data signal is converted into an optical data signal.

This optical data signal is sent to the keypad holder 4
After being converted into an electrical signal by the light receiving element 18 of No. 01, amplified by the receiver 16, it is transmitted to the processing apparatus main body 110 through the connector 14, the cable cable 300, and the connector 13.

The data signal guided to the connector 13 of the processor body 110 is amplified by the receiver 12 and then
It is decoded by the decoder 10 and read by the CPU 1.

(3) Input processing of personal identification code When a customer who arrives at the store presents a method using a card as a payment method for shopping or service, the transaction processing device is used to settle the payment. Hereinafter, the operation in that case will be described in detail with reference to the processing flow of the processing apparatus main body 110 shown in FIGS. 6 to 8 and the processing flow of the keypad 402 shown in FIGS. 9 to 11.

First, the keyboard 5 of the processing apparatus main body 110
When the key for instructing the start of the process is pressed by the clerk in step 1, the CPU 1 generates a process ID that is randomized by the random number generation process as a preparation for the process and stores it in the area m01 of the RAM 3 (step 50). The process ID may be generated by any rule as long as it changes for each process of inputting the personal identification number.

Next, the CPU 1 displays a card (magnetic card) input request on the display 4 of the main body 110 (step 51). In this state, the clerk causes the card reader 6 to read the data such as the membership number recorded on the card deposited by the customer. When the reading of the card data is completed, the CPU 1 stores the read card data in the RAM.
The data is stored in the area m02 of 3 (steps 52 and 53).

Subsequently, the input request for the sales amount is displayed on the display 4 (step 54). In response to this, when the clerk inputs the sales price from the keyboard 5, the CPU 1 stores the input sales price data in the area m03 of the RAM3.
(Steps 55 and 56).

Next, in order to display the sales amount on the keypad 402 and to input the personal identification number, as shown in FIG.
The input request command having the contents shown in (b) is stored in the RAM.
3 is assembled in the area m04 (step 57).

That is, the process I generated in step 50
Copy D from area m01 to m042. further,
The data of the member number, which is a part of the card data stored in the area m02, is copied to the area m045. Further, in order to display the sales amount on the display 28 of the keypad 402, a display command indicating that the data that follows is display data is set in the area m044. Further, as the data to be displayed on the display 28 of the keypad 402, the sales amount data is copied from the area m03 to the area m045. Also, the keypad 402
In order to input data from, the input command is set in the area m046. Then, the number of digits of the personal identification number to be input from the keypad 402 is set in the area m047. Finally, the data length of the input request command transmitted from the main body 110 to the keypad 402 is counted and set in the area m041.

After assembling the input request command in this way, the CPU 1 of the main body 110 transmits this input request command to the keypad 402 (step 5).
8).

In this state, the CPU 1 makes the keypad 402
However, when the keypad 402 is not attached to the keypad holder 401 and no response is returned even after a certain period of time, or when a response other than the command reception completion is received, 11
"Keypad cannot be used" is displayed on the display 4 of 0, and the transmission request command is transmitted to the keypad 402 again (steps 59 to 62).

On the other hand, the keypad 402 waits for a command from the main body 110 after clearing the display on the display 28, as shown in step 80 of FIG. Therefore, when the CPU 25 of the keypad 402 receives the input request command from the main body 110 while being attached to the keypad holder 401, the CPU 25 stores the input request command in the reception buffer area m17 of the RAM 27 (steps 81 and 82).

Then, the contents of the command stored in the reception buffer area m17 are examined, and if the command is not an input request command, the command reception is kept waiting again.

However, if the command stored in the reception buffer area m17 is an input request command, the command shown in FIG.
A command reception completion response having the contents shown in (c) is assembled and transmitted to the processing apparatus main body 110 (steps 84 and 85).

The command reception completion response uses the transmission buffer area m16 and is assembled in the following procedure.

First, it is included in the input request command,
Further, as shown in FIG. 5D, the data of the process ID stored in the area m171 and the member number stored in the area m173 are stored in the transmission buffer area m16 in m16.
2, copy to m163. Next, "command reception completed" is set in the area m164 storing the processing result code. Finally, count the length of the response,
Set it in area m161.

When the command reception completion response is assembled in the transmission buffer area m16 in this way, the command reception completion response data is transferred to the encryption device 24 and encrypted by the encryption device 24. It is transmitted to the main body 110.

On the other hand, when the CPU 1 of the main body 110 receives the command reception completion response from the keypad 402, it stores this response in the reception buffer area m05 of the RAM 3 (steps 59 and 62).
Then, the contents of the reception buffer area m05 are checked, and if the response is "command reception completed", a password input request is displayed on the display 4 (steps 63 and 6).
4).

When the secret code input request is displayed on the display 4 of the main body 110, the store clerk uses the keypad 402.
Is removed from the keypad holder 401, the customer is given the keypad 402, and requested to enter the personal identification number.

On the other hand, the CPU 25 of the keypad 402 is
When the response of "command reception completed" is transmitted to the main body 110, the process ID stored in the area m172 of FIG. 5D is copied to the area m14, and the membership number stored in the area m173 is changed. The data is copied to the area m15 (steps 86, 87). further,
The data in the input request command received from the main body 110
In order to check the command content of the area m174 of the data, an address indicating the area m174 is set in the command pointer area m11 of the RAM 27, the content of the area 174 is read, and the content of the command is analyzed (steps 88 and 89). As a result, if it is a display command, the sales amount (the amount input by the clerk) stored in the area m175 is displayed on the display 28 (step 9).
0).

After that, an address indicating the next command area m176 is set in the command pointer area m11 of the RAM 27, and the command pointer area m11 is updated (step 91). Then, the address data is set to the head address of the input data area m13 in the input pointer area m12 of the RAM 27, and the keyboard 29 is made ready for input (steps 91, 92, 93).

In this state, the CPU 25 waits for the input of the personal identification number of the number of digits designated by the input request command.

Then, when the customer confirms the sales amount displayed on the display 28 and sequentially inputs the personal identification number of his / her card by the required number of digits from the keyboard 29 of the keypad 402, the CPU 25 receives the first digit. Display 28, the display is cleared and a "-" symbol indicating the number of input digits is displayed at the right end of the display screen (steps 94 and 9).
5, 96). If it is not the first digit, "-" indicating the number of input digits
A symbol is added (step 97).

Then, the data of the inputted personal identification number is
Input pointer area m1 of the input data area m13
It is stored in the address indicated by 2, and thereafter, the input pointer area m12 is updated to store the personal identification number data of the next digit, until the digit number designated by the input request command is input. The process is repeated (steps 98, 99,
100). As a result, the personal identification number data of the number of digits designated by the input request command is input, and the input data area m
If it is stored in 13, the CPU 25 sets the personal identification number data of the input data area m13 to the area m165 of the transmission buffer area m16 shown in FIG. 5 (e) in order to assemble the response (step 101).

Next, data indicating "normal end" is set in the processing result code area m164 of FIG. 5 (e) (step 102). Furthermore, the area m16 in FIG.
2, m163, the data of processing ID and member number are in area m
Copy from 14, m15. Finally, the length of the response is counted and set in the area m161 (step 103).

After assembling the response in this way, the keypad 402 waits for reception of the data transmission request command from the main body 101.

When the operation of inputting the personal identification number is completed, the keypad 402 is returned to the store clerk and mounted on the keypad holder 401 by the store clerk.

The reason why the process ID and the member number data which is a part of the card data is assembled as a response is as follows.

That is, the personal identification number input device 4 of this embodiment
When a plurality of transaction processing devices equipped with 00 are installed and the keypad 402 is inserted into the keypad holder 401 of a pair different from the processing device main body 110 which has generated the input request, the customer's password to be originally processed There is a problem that another person's personal identification number that is not a number is transmitted to the online center. In order to solve this, it is necessary to make correspondence between the transaction processing device main body 110 that has generated the input request and the keypad 402 in which the personal identification number has been input. Therefore, in this embodiment, in order to take this correspondence, the data of the process ID and the member number set in the input request command received from the main body 110 by the keypad 402 is RA.
It is saved in the areas m14 and m15 of M27, incorporated in the response, and sent back to the main body 110 side.

On the other hand, the main body 110, after displaying the personal identification number input request on the display 4, sends the data transmission request command shown in FIG. 4 (e) to the transmission buffer area m04.
The keypad 402 is assembled and transmitted at regular intervals, and the response is awaited (steps 65 and 6).
6, 67, 68).

Then, the keypad 402, which has been waiting for the data transmission request command from the main body 101 in the state where the secret code input operation is completed and the keypad holder 401 is mounted on the keypad holder 401, is transmitted from the main body 110. De
When the data transmission request command is received, the received command is stored in the reception buffer area m17, and the area m17
It is analyzed whether or not the data of No. 4 is a data transmission request command, and if so, the response of normal termination assembled in the transmission buffer area m17 is transmitted to the main body 110, and the initial state is returned (step 104). , 105, 10
6, 107).

On the other hand, when the main body 110 receives the response indicating the normal end, it sets this in the area m05 (steps 69A and 69B), and the process I transmitted by itself.
It is checked whether or not the process ID and the member number received from D and the member number and the keypad 402 match (step 70), and if they do not match, it is instructed to mount the keypad 402 in the correct combination on the keypad holder 401. The request to do so on the display 4 (step 7
3).

However, when they match, an input completion display showing that the personal identification number has been normally input is displayed on the display 4, and the card data, the amount of money, the personal identification number, etc. input for online processing are transmitted to the center. Yes (Step 7
1, 72).

As described above, in this embodiment, the keypad holder 401 in which the personal identification number input device is connected to the processing apparatus main body 110 by wire, and the keypad holder 40.
1 and a key pad 402 which is detachably attached to the key pad 402, and the key pad 402 and the key pad holder 401 are light-emitting elements 17 and 20 for transmitting and receiving data by optical coupling in the mounted state of both. Data transmission / reception means composed of the light receiving elements 18 and 19 is provided, and the transmission request command following the input request command is input with the password input by the customer's key operation responding to the input request command of the processing unit 110 Since it is configured to be transmitted to the processing device main body 110 in response to, the keypad 402 for inputting the personal identification number can be freely carried and the personal identification number can be input anywhere inside or outside the store. Then, when the keypad 402 is attached to the keypad holder 401, the inputted personal identification number is transmitted to the processing apparatus main body 110 in response to a transmission request command following the personal identification number input request command. Therefore, the processing device main body 110 can be installed in a place where there is no hindrance to business activities in the store, and effective use of the store can be achieved. Further, it is not necessary to send a customer who inputs a personal identification number to the store, and the customer service is improved.

Further, by disposing the processing apparatus main body 110 in a place where it does not hinder the business activities in the store, the atmosphere in a quiet store such as a jewelry store is destroyed by the sound of the slip output from the processing apparatus main body. It will not be lost.

Further, the processing device main body 110 inserts into the input request command a processing ID (specific code data) which is different for each processing device and is different each time the input processing is performed.
Since the personal identification number is transmitted only to the pad 402 and the response of the personal identification number including the same processing ID is returned from the key pad 402, the personal identification number is validated. When a plurality of processing devices are installed, the processing device main body 110 that has generated the input request
Keypad holder 401 with a different keypad 40
When 2 is inserted, it solves the problem of sending the PIN code of another person who is not the customer's PIN code to be processed to the online center, and ensures that incorrect processing is executed due to mishandling. Can be prevented.

In the above embodiment, the data transmission / reception between the keypad holder 401 and the keypad 402 is performed by optical coupling, but electromagnetic coupling, mechanical contact or the like may be used.

[0063]

As described above, in the present invention, the key pad holder in which the personal identification number input device is connected to the main body of the processing apparatus by wire and the key pad which is detachably attached to the key pad holder are provided. The key pad and the key pad holder are provided with data transmission / reception means composed of a light emitting element and a light receiving element for transmitting and receiving data by optical coupling when the both are mounted, and a password from the processor main body is provided. Since the personal identification number input by the customer's key operation responding to the number input request command is configured to be transmitted to the processing apparatus body in response to the transmission request command following the input request command, the key inputting the personal identification number is performed. -You can freely carry the pad and enter your PIN anywhere inside or outside the store. Then, when the keypad is mounted on the keypad holder, the inputted personal identification number is transmitted to the processing apparatus main body in response to the transmission request command following the personal identification number input request command. Therefore, the processing apparatus main body can be installed in a place where there is no hindrance to business activities in the store, and the store can be effectively used. Further, it is not necessary to send a customer who inputs a personal identification number to the store, and the customer service is improved.

Further, by installing the main body of the processing device in a place where the business activities in the store are not hindered, the atmosphere inside a quiet store such as a jewelry store is destroyed by the sound of the slip output from the main body of the processing device. Things will disappear.

Further, specific code data which is different for each processing device and which is different each time the input processing is inserted into the input request command from the processing device main body is transmitted to the key pad, and the same key pad is used. Since the personal identification number is made valid only when the response of the personal identification number including the code data of is returned, when a plurality of transaction processing devices equipped with the personal identification number input device are installed, Solved the problem that if the keypad was inserted into a keypad holder that is not the same as the processing device that issued the input request, the PIN code of another person, which was not the PIN code of the customer to be processed, would be sent to the online center. However, it is possible to reliably prevent erroneous processing due to a handling error.

[Brief description of drawings]

FIG. 1 is a block diagram showing an overall configuration of an embodiment of a transaction processing apparatus using a personal identification number input device of the present invention.

FIG. 2 is a block diagram showing a detailed configuration of a transaction processing apparatus body in the embodiment.

FIG. 3 is a block diagram showing a detailed configuration of a keypad and a keypad holder in the embodiment.

FIG. 4 is a ROM and R of the processing apparatus main body in the embodiment.
It is a memory map which shows the storage area of AM.

FIG. 5 is a ROM and RA of the keypad according to the embodiment.
3 is a memory map showing M storage areas.

FIG. 6 is a flowchart showing the first half of the processing flow of the processing apparatus main body in the embodiment.

FIG. 7 is a flowchart showing an intermediate portion of a processing flow of the processing apparatus main body in the embodiment.

FIG. 8 is a flowchart showing the latter half of the processing flow of the processing apparatus main body in the embodiment.

FIG. 9 is a flowchart showing the first half of the processing flow of the keypad in the embodiment.

FIG. 10 is a flowchart showing an intermediate portion of the processing flow of the keypad in the embodiment.

FIG. 11 is a flowchart showing the latter half of the processing flow of the keypad in the embodiment.

FIG. 12 is a block diagram showing an overall configuration of a transaction processing apparatus using a conventional personal identification number input device.

[Explanation of symbols]

1, 25 ... CPU, 9, 24 ... Encryption device, 10, 23 ... Complex device, 13, 14 ... Connector, 17, 20 ... Light emitting element,
18, 19 ... Light receiving element, 110 ... Transaction processing apparatus main body, 3
00 ... Wired cable, 400 ... PIN input device, 401
... keypad holder, 402 ... keypad.

Continuation of the front page (51) Int.Cl. ⁵ Identification code Office reference number FI Technical display location G07F 7/12 H04L 9/32

Claims (3)

[Claims] 1. A personal identification number input device for transmitting a personal identification number input by a key operation in response to an input request command from the processing device body to the processing device body in response to a transmission request command following the input request command. And a key pad which is connected to the main body of the processing apparatus by wire and a key pad which is detachably attached to the key pad holder.
The pad and the key pad holder are provided with a data transmission / reception means for transmitting / receiving data by a coupling form of any one of optical coupling, electromagnetic coupling, and mechanical contact in a mounted state of both, and the key pad further comprises Inputting a personal identification number, characterized by comprising a control means for transmitting the personal identification number input by key operation to the main body of the processing device in response to a transmission request command from the main body of the processing device and the data transmission / reception means and the wire. vessel. 2. The processing apparatus main body inserts specific code data into an input request command and transmits the code data to a keypad, and then the keypad.
2. The personal identification number input device according to claim 1, further comprising control means for activating the personal identification number only when a personal identification number including the same code data is returned from the pad. 3. The personal identification number input device according to claim 2, wherein the code data is different for each processing device body.