Pulse or digital communications – Bandwidth reduction or expansion – Television or motion video signal
Reexamination Certificate
2011-08-30
2011-08-30
Dastouri, Mehrdad (Department: 2486)
Pulse or digital communications
Bandwidth reduction or expansion
Television or motion video signal
C375S240130, C375S240290
Reexamination Certificate
active
08009734
ABSTRACT:
A method for implementing B-frame prediction in video compression comprising the steps of (A) setting a prediction flag (i) “off” if B-frames are used for block prediction and (ii) “on” if B-frames are not used for block prediction, (B) if the prediction flag is off, generating an output video signal in response to an input video signal by performing an inverse quantization step and an inverse transform step in accordance with a predefined coding specification and (C) if the prediction flag is on, bypassing the inverse quantization step and the inverse transform step.
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patent: 6160503 (2000-12-01), Andrews et al.
patent: 2004/0218668 (2004-11-01), Hannuksela et al.
International Telecommunication Union (ITU), Annex J of Video coding for low bit rate communication, Feb. 1998, ITU, H.263, 81-84.
Joint Video Team of ISO/IEC MPEG and ITU-T VCEG, Working Draft No. 2 Revision 2, Mar. 15, 2002, pp. 28-33, 60-62 and 95-96.
Cote Guy
Gallant Michael D.
Novotny Pavel
Winger Lowell L.
Dastouri Mehrdad
Hallenbeck-Huber Jeremaiah C
LSI Corporation
Maiorana PC Christopher P.
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