Invention Grant
US08782438B2 Secure storage and replay of media programs using a hard-paired receiver and storage device
有权
使用硬配对的接收器和存储设备安全存储和重放媒体节目
- Patent Title: Secure storage and replay of media programs using a hard-paired receiver and storage device
- Patent Title (中): 使用硬配对的接收器和存储设备安全存储和重放媒体节目
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Application No.: US13402584Application Date: 2012-02-22
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Publication No.: US08782438B2Publication Date: 2014-07-15
- Inventor: Raynold M. Kahn , Gregory J. Gagnon , David D. Ha , Peter M. Klauss , Christopher P. Curren , Thomas H. James
- Applicant: Raynold M. Kahn , Gregory J. Gagnon , David D. Ha , Peter M. Klauss , Christopher P. Curren , 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: G06F12/14
- IPC: G06F12/14

Abstract:
A method and apparatus for storing and retrieving program material for subsequent replay is disclosed. The method comprises the steps of receiving a data stream comprising the program material encrypted according to a first (CW) encryption key, decrypting the program material; re-encrypting the program material according to a second encryption key, and storing the re-encrypted material in a media storage device. The program material is played back by retrieving the re-encrypted material from the media storage device and decrypting the re-encrypted program material. In one embodiment, the media storage device also stores the second encryption key which has been further encrypted by a key that is unique to the device used to receive the program material.
Public/Granted literature
- US20120155837A1 SECURE STORAGE AND REPLAY OF MEDIA PROGRAMS USING A HARD-PAIRED RECEIVER AND STORAGE DEVICE Public/Granted day:2012-06-21
Information query