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.

Date of Patent:
May. 25, 2010

Filed:

Jul. 15, 2002
Applicants:

Tohru Nakahara, Osaka, JP;

Masanori Nakanishi, Osaka, JP;

Yasushi Uesaka, Sanda, JP;

Kouji Miura, Matsubara, JP;

Akio Higashi, Takatsuki, JP;

Takaaki Namba, Nagoya, JP;

Inventors:

Tohru Nakahara, Osaka, JP;

Masanori Nakanishi, Osaka, JP;

Yasushi Uesaka, Sanda, JP;

Kouji Miura, Matsubara, JP;

Akio Higashi, Takatsuki, JP;

Takaaki Namba, Nagoya, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 21/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A content usage device includes (i) a license management unit that holds license information and (ii) a content output unit that uses a content in compliance with license information and outputs the content in at least one manner of a sound, video and data. The license management unit, upon receiving a request of license information from the content output unit, requests a license management unit of another content usage device to transfer the license information and acquires the license information, and passes the acquired license information to the content output unit. The content output unit uses a content in compliance with the license information passed from the license management unit.


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