Pulse or digital communications – Bandwidth reduction or expansion
Reexamination Certificate
2005-11-29
2005-11-29
Le, Vu (Department: 2613)
Pulse or digital communications
Bandwidth reduction or expansion
Reexamination Certificate
active
06970504
ABSTRACT:
An MPEG decoder in a high definition television receiver decodes and decompresses MPEG coded data to produce decompressed image pixel blocks, and includes a motion compensation network coupled to a frame memory to produce finally decoded pixel data for display. The decompressed MPEG data is recompressed by plural parallel recompressors prior to storage in frame memory. Each recompressor receives a datastream of interleaved pixel data, and predicts and compresses interleaved pixel values during each clock cycle, respectively. One of the recompressors is de-energized in a reduced data processing mode when pixel data is subsampled prior to recompression. Subsampled data is re-ordered prior to recompression. Multiple parallel decompressors coupled to the frame memory provide pixel data to the motion processing network. A control unit insures an uninterrupted interleaved data flow to the decompressors by repeating last valid data when source data is interrupted.
REFERENCES:
patent: 5471206 (1995-11-01), Allen et al.
patent: 5583500 (1996-12-01), Allen et al.
patent: 5675424 (1997-10-01), Park
patent: 5995135 (1999-11-01), Limberg
patent: 0 687 111 (1995-02-01), None
patent: 0 688 135 (1995-12-01), None
patent: 0688135 (1995-12-01), None
patent: 0710026 (1996-05-01), None
patent: 2307616 (1997-05-01), None
patent: 2014745 (1991-04-01), None
patent: 94044524 (1996-10-01), None
K. Challapali et al “Grand Alliance MPEG-2-Based Video Decoder with Parallel Processing Architecture” International Journal of Imaging Systems and Technology, vol. 5, No. 4, Jan. 1, 1994, pp. 263-267.
Kranawetter Greg Alan
Schultz Mark Alan
Kiel Paul P.
Le Vu
Senfi Behrooz
Shedd Robert D.
Thomson Licensing
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