Invention Grant
US08677152B2 Method and apparatus for encrypting media programs for later purchase and viewing
有权
用于加密媒体节目以供以后购买和查看的方法和装置
- Patent Title: Method and apparatus for encrypting media programs for later purchase and viewing
- Patent Title (中): 用于加密媒体节目以供以后购买和查看的方法和装置
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Application No.: US12172901Application Date: 2008-07-14
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Publication No.: US08677152B2Publication Date: 2014-03-18
- Inventor: Raynold M. Kahn , Gregory J. Gagnon , David D. Ha , Peter M. Klauss , Christopher P. Curren , Ronald P. Cocchi , Thomas H. James
- Applicant: Raynold M. Kahn , Gregory J. Gagnon , David D. Ha , Peter M. Klauss , Christopher P. Curren , Ronald P. Cocchi , Thomas H. James
- Applicant Address: US CA El Segundo
- Assignee: The DIRECTV Group, Inc.
- Current Assignee: The DIRECTV Group, Inc.
- Current Assignee Address: US CA El Segundo
- Main IPC: H04L9/28
- IPC: H04L9/28 ; H04L9/14

Abstract:
A system and method for storing and retrieving program material for subsequent replay is disclosed. The method includes accepting a receiver ID associated with a receiver key stored in a memory of the receiver, determining a pairing key for encrypting communications between the conditional access module and the receiver, encrypting the pairing key with the receiver key, and transmitting a message comprising the encrypted pairing key to the receiver. The apparatus comprises a receiver for receiving a data stream transmitting a media program encrypted according to a media encryption key and an encrypted media encryption key and a conditional access module, communicatively coupleable with the receiver.
Public/Granted literature
- US20080279386A1 METHOD AND APPARATUS FOR ENCRYPTING MEDIA PROGRAMS FOR LATER PURCHASE AND VIEWING Public/Granted day:2008-11-13
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