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:
May. 03, 2005
Filed:
Dec. 01, 2000
Takayuki Sugahara, Yokosuka, JP;
Toshio Kuroiwa, Yokohama, JP;
Wataru Inoha, Yokosuka, JP;
Kenjiro Ueda, Yokosuka, JP;
Seiji Higurashi, Tokyo, JP;
Takayuki Sugahara, Yokosuka, JP;
Toshio Kuroiwa, Yokohama, JP;
Wataru Inoha, Yokosuka, JP;
Kenjiro Ueda, Yokosuka, JP;
Seiji Higurashi, Tokyo, JP;
Victor Company of Japan, Ltd., Yokohama, JP;
Abstract
A signal representative of a key is generated from authenticator-value information and key base information. The authenticator-value information represents a specified authenticator value. The key base information contains identification information which is set to reproduce the specified authenticator value according to a predetermined degeneration function. Contents information is encrypted into encryption-resultant contents information in response to the key signal. The key base information and the encryption-resultant contents information are transmitted or recorded.