Invention Grant
- Patent Title: Playing control files for personal video recorders
- Patent Title (中): 播放个人录像机的控制文件
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Application No.: US13450905Application Date: 2012-04-19
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Publication No.: US08689351B1Publication Date: 2014-04-01
- Inventor: Scott C. Harris
- Applicant: Scott C. Harris
- Applicant Address: US CA Rancho Santa Fe
- Assignee: Harris Technology, LLC
- Current Assignee: Harris Technology, LLC
- Current Assignee Address: US CA Rancho Santa Fe
- Agency: Law Office of Scott C. Harris, Inc.
- Main IPC: G06F21/00
- IPC: G06F21/00

Abstract:
The certificate with specified conditions under which copyrighted material can be played. Copyrighted material, such as videos are stored in a storage unit. They are stored along with a policy that indicates when the information can be played. The information can, for example be encrypted one stored, and the decryption key is available only when characteristics of the policy are met. When those characteristics are not met, the information can not be retrieved at all or only can be retrieved in some very limited format.
Information query