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. 03, 2008
Filed:
Aug. 29, 2000
Masayuki Hatanaka, Kawasaki, JP;
Jun Kamada, Kawasaki, JP;
Takahisa Hatakeyama, Kawasaki, JP;
Takayuki Hasebe, Kawasaki, JP;
Seigou Kotani, Kawasaki, JP;
Tadaaki Tonegawa, Kodaira, JP;
Takeaki Anazawa, Tokyo, JP;
Toshiaki Hioki, Ogaki, JP;
Miwa Kanamori, Ogaki, JP;
Yoshihiro Hori, Gifu, JP;
Masayuki Hatanaka, Kawasaki, JP;
Jun Kamada, Kawasaki, JP;
Takahisa Hatakeyama, Kawasaki, JP;
Takayuki Hasebe, Kawasaki, JP;
Seigou Kotani, Kawasaki, JP;
Tadaaki Tonegawa, Kodaira, JP;
Takeaki Anazawa, Tokyo, JP;
Toshiaki Hioki, Ogaki, JP;
Miwa Kanamori, Ogaki, JP;
Yoshihiro Hori, Gifu, JP;
Abstract
A memory card includes a user ID hold unit holding user ID data provided to identify the user of the memory card, a first protection information memory unit holding first protection information restricting access to memory card, and a second protection information memory unit holding second protection information restricting access for each content data. Memory card refers to the user ID data to identify the user of the reproduction apparatus of interest and prohibits any unauthorized user from changing first and second protection information.