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:
Apr. 28, 2009
Filed:
Nov. 30, 2001
Applicants:
Takanori Saneto, Tokyo, JP;
Itaru Kawakami, Kanagawa, JP;
Yoshimichi Kitaya, Kanagawa, JP;
Inventors:
Assignee:
Sony Corporation, , JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 12/14 (2006.01); G06F 7/04 (2006.01); H04L 9/00 (2006.01); H04N 7/167 (2006.01); H04K 1/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
An information processing apparatus and method prevent the use of content by any unauthorized third parties and enable content to be used on any desired information processing apparatuses. An approval server receives data for identifying a content management program from a personal computer, generates a group key which is shared in a group, stores the data and the group key as related with each other, and transmits the group key to the personal computer.