Pulse or digital communications – Bandwidth reduction or expansion – Television or motion video signal
Reexamination Certificate
2004-10-06
2010-11-23
Diep, Nhon T (Department: 2621)
Pulse or digital communications
Bandwidth reduction or expansion
Television or motion video signal
Reexamination Certificate
active
07839933
ABSTRACT:
A video codec provides for adaptive vertical macroblock alignment of mixed interlaced and progressive video sequences. With adaptive vertical macroblock alignment, a video codec enforces a macroblock alignment height restriction on per picture basis, rather than requiring that all frames in a sequence adhere to a uniform height restriction. The video codec can then apply less padding to progressive and like type pictures that have smaller macroblock alignment increments, than to interlaced type pictures with larger alignment increments, which can save significant compression overhead.
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Holcomb Thomas W.
Hsu Pohsiang
Lin Chih-Lung
Srinivasan Sridhar
Diep Nhon T
Klarquist & Sparkman, LLP
Microsoft Corporation
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