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. 04, 2003
Filed:
Oct. 08, 1999
Masaya Yamamoto, Katano, JP;
Tomoyuki Nonomura, Osaka, JP;
Masataka Minami, Burbank, CA (US);
Masayuki Kozuka, Arcadia, CA (US);
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
A data processing apparatus is provided with a data obtaining unit which receives a network signal sn on a network N and obtains distributed audio data Dau in which copyright information or the like is embedded, and a control unit which obtains information indicating a watermarking method which has been used when embedding the copyright information or the like in the audio data. The embedded information is extracted by an appropriate watermarking method according to the obtained information indicating the used watermarking method. The extracted information is again embedded in the distributed audio data Dau by using a predetermined watermarking method, and thus obtained audio data is recorded on a recording medium. Therefore, regardless of the watermarking method used for embedding the copyright information or the like in the distributed audio data Dau, the distributed audio data Dau can be appropriately reproduced by reproduction apparatuses as domestic electrical equipment, according to the embedded information.