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. 20, 2012
Filed:
Jan. 19, 2006
Thaddeus C. Pritchett, Edmonds, WA (US);
Kenneth Reneris, Remond, WA (US);
Bernhard G. Kotzenberg, Bellevue, WA (US);
David J. Cheng, Cupertino, CA (US);
Thaddeus C. Pritchett, Edmonds, WA (US);
Kenneth Reneris, Remond, WA (US);
Bernhard G. Kotzenberg, Bellevue, WA (US);
David J. Cheng, Cupertino, CA (US);
Microsoft Corporation, Redmond, WA (US);
Abstract
A tuning device uses a counter mode encryption cipher to encrypt counters associated with media content in order to protect the media content when it is sent to requesting device or controller. The encrypted counters are decrypted in order to consume the media content. The controller may send particular direction to the tuning device as to how the media content, encrypted counters, and other associated data are sent to the controller.