Pulse or digital communications – Bandwidth reduction or expansion – Television or motion video signal
Reexamination Certificate
2004-11-15
2011-12-27
Czekaj, David (Department: 2483)
Pulse or digital communications
Bandwidth reduction or expansion
Television or motion video signal
C375S240120, C375S240130, C375S240230, C375S240250
Reexamination Certificate
active
08085844
ABSTRACT:
Techniques and tools for signaling reference frame distances are described. For example, a video encoder signals a code for a reference frame distance for a current field-coded interlaced video frame. The code indicates a count of frames (e.g., bi-directionally predicted frames) between the current frame and a preceding reference frame. The code may be a variable length code signaled in the frame header for the current frame. The encoder may selectively signal the use of a default value for reference frame distances rather than signal a reference frame distance per frame. A video decoder performs corresponding parsing and decoding.
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Joint Video
Holcomb Thomas W.
Lin Chih-Lung
Mukerjee Kunal
Czekaj David
Klarquist & Sparkman, LLP
Microsoft Corporation
Werner David N
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