Methods and apparatus for facilitating data communications between a data storage device and an information-processing apparatus
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Sep 7, 2004
Grant Date -
May 30, 2002
app pub date -
May 16, 2001
filing date -
May 16, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A specific-accessible service and a commonly accessible service can co-exist while ensuring the security thereof. It is assumed that a common area of a company A's issued IC card has registered therein an electronic value (corresponding to 1000 yen and a specific area thereof has registered therein a specific-accessible service point of 50 (corresponding to 50 yen). With respect to the commonly accessible electronic value and specific-accessible service point that are registered in the enterprise A's issued IC card, addition and subtraction can both be executed using a specific key A registered in the company A's terminal apparatus. However, in each of the respective cooperating companies' terminal apparatus, with respect to the commonly accessible electronic value, only subtraction processing is possible using a common key registered therein. But, to the processing that is executed with respect to the specific-accessible service point registered in the specific area, that terminal apparatus has no access right.
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