Customer service system for use in IC card system

Claim 1

A customer service system for use in an IC card system comprising: a customer's IC card (l2) including at least an IC circuit having first memory means (65) for storing the personal identification number of a customer, second memory means (65) for storing secret data, interface means (5l, 59 to 62) for controlling the output of data from said IC card and input of data to said IC card, comparator means (63) for comparing data input through said interface means (5l, 59 to 62) with data stored in first memory means, and control means (52 to 58, 64, 66 to 70) for controlling said first and second memory means (65), said interface means (5l, 59 to 62) and com­parator means (63) in accordance with selective execu­tion of a plurality of predetermined items of a customer service menu; display means (l3); display control means (22) for causing said display means (l3) to display the items of the customer service menu and to display necessary data including messages, once or repeatedly, in accordance with selective execu­tion of said items of menu; and customer's IC card read-write means (ll) including a loading section (lla, l02) for loading said customer's IC card (l2), a key input section (llb) for inputting data necessary to select one of said items of the custo­mer service menu displayed on said display means (l3) under the control of said display control means (22) and to exchange data between said customer's IC card read­write means (ll) and said customer's IC card (l2) loaded in said loading section (lla, l02), an interface section (7l, 87 to l00, l04) for controlling the output of data to said customer's IC card (l2) or to said display con­trol means (22), and the input of data from the custo­mer's IC card (l2) or from key input section (llb), and a control section (72 to 86, l0l, l03, l05) for control­ling said loading section (lla, l02), key input section (llb) and interface section (7l, 87 to l00, l04) in ac­cordance with the selective execution of said items of the customer service menu; whereby said customer service system provides pre­determined servcies in addition to ordinary transaction services to the customer, by permitting an access to said first and second memory in accordance with one of the selected items of the customer service menu when said comparator means produces a coincidence out­put.

Claim 3

The system according to claim l, characterized in that one of said items of the customer service menu is a process of registering a personal identificatiom number.

Claim 4

The system according to claim l, characterized in that one of said items of the customer service menu is process of altering a personal identification number.

Claim 5

The system according to claim l, characterized in that one of said items of the customer service menu is a process of checking transaction data.

Claim 6

The system according to claim l, characterized in that one of said items of the customer service menu is a process of checking card status.

Claim 7

The system according to claim l, which further comprises: an issuer's IC card (32) including at least an IC circuit having memory means (65) for storing IC card issuer's identification data, interface means (5l, 59 to 62) for controlling the output of the data from said is­suer's IC card (32) and input of data to said issuer's IC card (32), comparing means (63) for comparing the data input to said issuer's IC card (32) through said inter­face means (5l, 59 to 62) with the data stored in said memory means (65), and control means (52 to 58, 64, 66 to 70) for controlling said memory means (65), interface means (5l, 59 to 62) and comparing means (63) in accord­ance with the item of the customer service menu; issuer's IC card read-write means (3l) including a loading section (3ll, l02) for loading said issuer's IC card (32) therein, a key input section (3l2, llb) for inputting data necessary to execute one of said items of the customer service menu and for data exchange between said issuer's IC card (32) loaded in said loading sec­tion (3ll, l02) and said issuer's IC card read-write means (3l), an interface section (7l, 87 to l00, l04) for controlling the input of data to said issuer's IC card (32) loaded in said loading section (3ll, l02) and the output of data from said issuer's IC card (32) or said key input section (3l2, llB), and a control section (72 to 86, l0l, l03, l05) for controlling said loading section (3ll, l02), key input section (3l2, llb) and interface section (7l, 87 to l00, l04) in accordance with the item of said customer service menu; and starting means (23) for starting said customer's IC card read-write means (ll), display control means (22) and display means (l3) when said comparing means (63) produces a coincidence output; whereby said system provides a predetermined ser­vice in cooperation with the IC card issuer by permitting the accessing to said first and second memory means in accordance with one of the items of the customer service menu when said start means is driven.

Claim 10

The system according to claim l, characterized in that the comparison is done by said comparing means are obtained in the plurality of comparisons, a new per­sonal identification data can be written in said first memory.