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:
Mar. 06, 2007
Filed:
Mar. 20, 2001
Applicants:
Isamu Terasaka, Tokyo, JP;
Hiroshi Yamamoto, Tokyo, JP;
Toshimitsu Ohdaira, Tokyo, JP;
Inventors:
Assignee:
Sony Computer Entertainment Inc., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 9/32 (2006.01); H04N 7/167 (2006.01);
U.S. Cl.
CPC ...
Abstract
Digital sound data is encrypted and recorded in a recording medium. Informationrequired for decoding the encrypted digital sound datais recorded in a programfor controlling the reproduction of sound data separately from the digital sound data. This can prevent PCM sound data recorded in the recording medium as a part of a content, from being reproduced separately from the content.