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:
Aug. 23, 2011
Filed:
Jun. 20, 2008
Applicants:
Yoichiro Sako, Tokyo, JP;
Tatsuya Inokuchi, Kanagawa, JP;
Shunsuke Furukawa, Tokyo, JP;
Inventors:
Assignee:
Sony Corporation, , JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 11/30 (2006.01); G06F 7/04 (2006.01); H04L 9/00 (2006.01); H04K 1/00 (2006.01); H04L 9/08 (2006.01); H04J 13/00 (2011.01); G06F 12/14 (2006.01); G09C 1/00 (2006.01); G11B 20/10 (2006.01);
U.S. Cl.
CPC ...
Abstract
A data transmission method and apparatus for transmitting data, such as encrypted content data. A device that is to be a destination of transmission is authenticated. If the device has not been authenticated, encrypted data read out from a storage unit is decrypted to give decoded data which then is re-encrypted based on innate key data acquired from the device that is to be the destination of transmission to give re-encrypted data. The re-encrypted data is then transmitted to the device that is to be a destination of transmission.