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:
Aug. 23, 2005
Filed:
Jun. 25, 2002
Masahiro Sueyoshi, Kanagawa, JP;
Fumio Kubono, Tokyo, JP;
Akihiko Yamagata, Kanagawa, JP;
Masachika Sasaki, Kanagawa, JP;
Toshiharu Takemura, Kanagawa, JP;
Takashi Matsuo, Tokyo, JP;
Masahiro Sueyoshi, Kanagawa, JP;
Fumio Kubono, Tokyo, JP;
Akihiko Yamagata, Kanagawa, JP;
Masachika Sasaki, Kanagawa, JP;
Toshiharu Takemura, Kanagawa, JP;
Takashi Matsuo, Tokyo, JP;
Sony Corporation, Tokyo, JP;
Abstract
A pass-code identification device includes a communication unit for communicating with an external apparatus, a data-holding unit for holding data, a pass-code-holding unit for holding a pass-code, a pass-code comparison unit for comparing an input pass-code received through the communication unit with the pass-code held by the pass-code holding unit, and a flow control unit for controlling a result of comparison of the pass-codes in accordance with a condition for comparing the pass-codes. The condition determines whether or not it is necessary to judge pass-codes. The condition also determines whether or not a pass-code is required to change a pass-code from valid status to invalid status and vice versa.