The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 14, 2006
Filed:
Dec. 17, 2002
Futoshi Nakabe, Hiroshima, JP;
Tadakatsu Masaki, Hiroshima, JP;
Shinji Kawano, Hiroshima, JP;
Hideo Oozeki, Hiroshima, JP;
Hiromi Ebara, Hiroshima, JP;
Futoshi Nakabe, Hiroshima, JP;
Tadakatsu Masaki, Hiroshima, JP;
Shinji Kawano, Hiroshima, JP;
Hideo Oozeki, Hiroshima, JP;
Hiromi Ebara, Hiroshima, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
This invention provides a reader/writer, ID method and program comprising a response-detection unit of detecting normal responses and collisions from IC cards in response to a request; and a response-invalidation unit of sending a response-invalidation command, which is a command not to respond to requests in the future, to IC cards that sent normal responses when the response-detection unit received normal responses from IC cards even though collisions were detected.