Cryptography – Video cryptography – Video electric signal modification
Reexamination Certificate
2011-05-03
2011-05-03
Brown, Christopher J (Department: 2439)
Cryptography
Video cryptography
Video electric signal modification
C345S204000
Reexamination Certificate
active
07936876
ABSTRACT:
In accordance with the teachings the present invention, a system and method for transporting video data through a dual-link HD-SDI connection is provided. In a particular embodiment of the present invention, the method includes coupling a digital video projector and a playback server with a dual-link HD-SDI connection, the dual-link HD-SDI connection having four 10-bit subchannels; dividing 12-bit, 4:4:4, RGB video data into four 9-bit sections; mapping each 9-bit section of video data into nine least significant bits of a respective one of the four 10-bit subchannels; setting a most significant bit of each 10-bit subchannel to be a compliment of a next most significant bit of the 10-bit subchannel; and transporting the sections of video data from the playback server to the digital video projector through the dual-link HD-SDI connection.
REFERENCES:
patent: 2006/0210065 (2006-09-01), Ito et al.
Review Specification entitled: “Link Encryption for 1.5 Gb/s Serial Digital Interface”, SMPTE Standard for D-Cinema, © 2002- 2005, The Society of Motion Picture and Television Engineers, Mar. 15, 2005 (34 pages).
U.S. Appl. No. 11/221,247 entitled “System and Method for Bit Stream Compatible Local Link Encryption”, filed Sep. 6, 2005, Applicants are Bradley W. Walker, Matthew J. Fritz and Reiner M. Doetskies.
U.S. Appl. No. 11/221,086 entitled “System and Method for Transporting an Ancillary Data Packet in the Active Area of a Video Stream”, filed Sep. 6, 2005; Applicants are Bradley W. Walker and Matthew J. Fritz.
U.S. Appl. No. 11/220,246 entitled “System and Method for Detecting AES Random Number Generator Synchronization Errors”, filed Sep. 6, 2005; Applicants are Reiner M. Doetzkies, Bradley W. Walker and Matthew J. Fritz.
Brady III Wade James
Brill Charles A.
Brown Christopher J
Telecky , Jr. Frederick J.
Texas Instruments Incorporated
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