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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.:

US 8984658 B1

PDFFull Text
Expired
Date of Patent:
Mar. 17, 2015

Filed:

Jul. 19, 2012

Copyright protection data processing system and reproduction device

Applicants:

Takahiro Yamaguchi, Hyogo, JP;

Masaya Yamamoto, Osaka, JP;

Sanzo Ugawa, Osaka, JP;

Toshihisa Nakano, Osaka, JP;

Kaoru Murase, Nara, JP;

Inventors:

Takahiro Yamaguchi, Hyogo, JP;

Masaya Yamamoto, Osaka, JP;

Sanzo Ugawa, Osaka, JP;

Toshihisa Nakano, Osaka, JP;

Kaoru Murase, Nara, JP;

Assignee:

Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;

Attorney:

Wenderoth, Lind & Ponack, L.L.P.

Primary Examiner:

David Garcia Cervetti

Int. Cl.
CPC ...
H04L 29/06 (2006.01); G11B 23/03 (2006.01); G06F 21/10 (2013.01); G11B 19/12 (2006.01); G11B 20/00 (2006.01); G11B 23/28 (2006.01); G11B 23/30 (2006.01); H04N 5/913 (2006.01); H04N 5/85 (2006.01);
U.S. Cl.
CPC ...
G11B 23/0305 (2013.01); G06F 21/10 (2013.01); G11B 19/122 (2013.01); G11B 20/00086 (2013.01); G11B 23/283 (2013.01); G11B 23/30 (2013.01); H04N 5/913 (2013.01); H04N 5/85 (2013.01); H04N 2005/91342 (2013.01);
Abstract

A content protection data processing system and a playback device determine whether to permit playback of a content recorded in a recording medium, based on a type of the recording medium and a signature type of a signature attached to a program. Additionally, the content protection data processing system and the playback device switch a procedure relating to a digital signature for each signature type of the digital signature, which enables both the protection of the copyright of the content and the efficient manufacturing of commercial ROM media.

Find Patent Forward Citations

Yamaguchi, Takahiro. (2015). Copyright protection data processing system and reproduction device (U.S. Patent No. 8984658). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8984658

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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