Invention Grant
US07784103B2 Method and apparatus for storing copy protection information separately from protected content
有权
将复制保护信息与受保护内容分开存储的方法和装置
- Patent Title: Method and apparatus for storing copy protection information separately from protected content
- Patent Title (中): 将复制保护信息与受保护内容分开存储的方法和装置
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Application No.: US10968487Application Date: 2004-10-19
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Publication No.: US07784103B2Publication Date: 2010-08-24
- Inventor: John O. Ryan , Ronald Quan , James H. Salter
- Applicant: John O. Ryan , Ronald Quan , James H. Salter
- Applicant Address: US CA Santa Clara
- Assignee: Rovi Solutions Corporation
- Current Assignee: Rovi Solutions Corporation
- Current Assignee Address: US CA Santa Clara
- Agent James H. Salter; Andy T. Pho
- Main IPC: G06F7/04
- IPC: G06F7/04

Abstract:
A copy protection system and method enabling storage of copy protection information separately from protected content is disclosed. One embodiment includes a mechanism for playing a recording medium, the recording medium having stored thereon a digital content file and a copy protection information file, the mechanism producing a digital content signal from the digital content file and a copy protection signal from the copy protection file; a digital to analog converter operatively connected to the mechanism for converting the digital content signal to an analog signal; a copy protection detector connected to the mechanism for detecting a copy protection trigger present in the digital content signal; and a signal modifier connected to the copy protection detector for modifying the analog signal to include the copy protection signal in response to detection of the copy protection trigger.
Public/Granted literature
- US20060085863A1 Method and apparatus for storing copy protection information separately from protected content Public/Granted day:2006-04-20
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