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:
Jun. 01, 2004
Filed:
Mar. 29, 2000
Takayuki Sugahara, Kanagawa-ken, JP;
Atsumi Hirata, Kanagawa-ken, JP;
Victor Company of Japan, Limited, Yokohama, JP;
Abstract
When enciphered contents information is transferred from media A to media B, enciphered key information and ID(A) of the media A are recorded as a control number of data link ID in a memory of a media control unit. The control number is attached to the enciphered contents information and duplicated to the media B with the enciphered key information. The enciphered key information read from the media B and the enciphered key information read from the media B are compared with each other. When they coincide, a differential ID (A−B) value which is a differential value between media A ID and media B ID is outputted to the media B. After the output, the enciphered key information and ID(A) recorded in the memory are deleted.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile