Invention Application
- Patent Title: A METHOD AND APPARATUS FOR STORING COPY PROTECTION INFORMATION SEPARATELY FROM PROTECTED CONTENT
-
Application No.: PCT/US2005/036970Application Date: 2005-10-14
-
Publication No.: WO2006044622A3Publication Date: 2006-04-27
- Inventor: RYAN, John, O. , QUAN, Ronald , SALTER, James, H.
- Applicant: MACROVISION CORPORATION , RYAN, John, O. , QUAN, Ronald , SALTER, James, H.
- Applicant Address: 2830 De La Cruz Blvd., Santa Clara, CA 95050 US
- Assignee: MACROVISION CORPORATION,RYAN, John, O.,QUAN, Ronald,SALTER, James, H.
- Current Assignee: MACROVISION CORPORATION,RYAN, John, O.,QUAN, Ronald,SALTER, James, H.
- Current Assignee Address: 2830 De La Cruz Blvd., Santa Clara, CA 95050 US
- Agency: SALTER, James, H.
- Priority: US10/968,487 20041019
- Main IPC: G06F17/30
- IPC: G06F17/30 ; G06K9/00 ; H03M1/68
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.
Information query