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:
Jul. 19, 2011

Filed:

Jul. 14, 2005
Applicants:

Natsume Matsuzaki, Osaka, JP;

Masaya Miyazaki, Osaka, JP;

Yuichi Futa, Osaka, JP;

Toshihisa Nakano, Osaka, JP;

Hiroki Yamauchi, Osaka, JP;

Soichiro Fujioka, Osaka, JP;

Yuko Tsusaka, Osaka, JP;

Inventors:

Natsume Matsuzaki, Osaka, JP;

Masaya Miyazaki, Osaka, JP;

Yuichi Futa, Osaka, JP;

Toshihisa Nakano, Osaka, JP;

Hiroki Yamauchi, Osaka, JP;

Soichiro Fujioka, Osaka, JP;

Yuko Tsusaka, Osaka, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 9/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

When a PC transmits a content request to a device registration apparatus in which a permitted number of devices have already been registered, an expiration time management unit judges whether any registration information registered in a registration list management unit has an exceeded registration expiration time. If registration information with an exceeded registration expiration time is registered in the registration list management unit, the registration list management unit deletes this registration information, and newly registers registration information of the PC.


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