Invention Grant
US08139768B2 Encrypting content in a tuner device and analyzing content protection policy
有权
在调谐器设备中加密内容并分析内容保护策略
- Patent Title: Encrypting content in a tuner device and analyzing content protection policy
- Patent Title (中): 在调谐器设备中加密内容并分析内容保护策略
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Application No.: US11275626Application Date: 2006-01-19
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Publication No.: US08139768B2Publication Date: 2012-03-20
- Inventor: Thaddeus C. Pritchett , Kenneth Reneris , Bernhard G. Kotzenberg , David J. Cheng
- Applicant: Thaddeus C. Pritchett , Kenneth Reneris , Bernhard G. Kotzenberg , David J. Cheng
- Applicant Address: US WA Redmond
- Assignee: Microsoft Corporation
- Current Assignee: Microsoft Corporation
- Current Assignee Address: US WA Redmond
- Agency: Lee & Hayes, PLLC
- Main IPC: H04L29/06
- IPC: H04L29/06

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.
Public/Granted literature
- US20070192810A1 Encrypting Content In A Tuner Device And Analyzing Content Protection Policy Public/Granted day:2007-08-16
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