METHOD AND DEVICE FOR MANAGING CARD INFORMATION OF CREDIT CARD

摘要

PROBLEM TO BE SOLVED: To confirm the creditability of a credit card used to purchase an article or service by using card information that an member shore of a credit company. SOLUTION: A host computer 104 of a card management center 1 outputs information regarding whether the credit card of a member of the credit company is effective or ineffective as card information and transmission facilities 5 transmits digital data of the card information by radio. Reception facilities 4 of the member store receive the radio signal of the card information, detects whether or not there is data absence, and requests the host computer 104 to transfer the absent data if the data is absent. A terminal computer 110 extracts and stores card information needed for its store by using the data outputted by the host computer 104 and the data outputted at the transfer request and outputs a judgement of whether the credit card inserted into a card reader 111 is effective or ineffective.