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:
Mar. 09, 2010

Filed:

Jan. 24, 2007
Applicants:

Ryuichi Okamoto, Osaka, JP;

Akio Higashi, Osaka, JP;

Satoshi Niwano, Osaka, JP;

Hiroki Murakami, Osaka, JP;

Inventors:

Ryuichi Okamoto, Osaka, JP;

Akio Higashi, Osaka, JP;

Satoshi Niwano, Osaka, JP;

Hiroki Murakami, Osaka, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 9/08 (2006.01);
U.S. Cl.
CPC ...
Abstract

To reduce a frequency of recording communication management information for communication disconnection countermeasure. A digital content distribution system includes a license server () that issues a license, and a user terminal () that controls use of content based on the issued license. The license server () judges, according to the license to be issued, whether or not the communication management information for the communication disconnection countermeasure needs to be recorded, and notifies the user terminal of a result of the judgment. This enables the user terminal () to reduce the frequency of recording the communication management information.


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