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. 24, 2005
Filed:
Aug. 02, 2002
Manabu Sasamoto, Yokohama, JP;
Takaharu Noguchi, Yokohama, JP;
Makoto Aikawa, Yokohama, JP;
Shigeru Hirahata, Ooiso-machi, JP;
Manabu Sasamoto, Yokohama, JP;
Takaharu Noguchi, Yokohama, JP;
Makoto Aikawa, Yokohama, JP;
Shigeru Hirahata, Ooiso-machi, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A digital information recording apparatus to record digital information to protect copyright of digital information that includes at least first digital information and first copy control information. The digital information recording apparatus records the digital information based upon the first copy control information, which denotes one of: a copy inhibition prohibiting copying of said first digital information; a limited copy permission authorizing a predetermined number of times of copying of said first digital information; and an unlimited copy permission authorizing unlimited copying of said first digital information.