Inverse quantizer supporting multiple decoding processes

Details Inverse quantizer supporting multiple decoding processes Inverse quantizer supporting multiple decoding processes

2011-04-05

2011-04-05

Rao, Andy S (Department: 2482)

Pulse or digital communications

Bandwidth reduction or expansion

Television or motion video signal

C375S240020, C375S240250, C375S240260

Reexamination Certificate

active

07920624

ABSTRACT:
The present invention provides an apparatus for performing inverse quantization for multiple decoding standards, where the functional operations that comprise the inverse quantizer are modularly implemented and can be selectably performed. Each operation can be represented via a table entry in an associated memory area, with the functional operation being performed via reference to that table entry. Functional operations can be bypassed as needed if inverse quantization does not need to be performed on a set of data. Certain other processing operations can be performed between steps as needed to accommodate different coding standards. Macroblock data can be read from and written back to a common storage area, or a direct path is provided for writing the data directly to a subsequent inverse transform device.

REFERENCES:
patent: 5610657 (1997-03-01), Zhang
patent: 5708511 (1998-01-01), Gandhi et al.
patent: 5809270 (1998-09-01), Robbins et al.
patent: 5815206 (1998-09-01), Malladi et al.
patent: 6052415 (2000-04-01), Carr et al.
patent: 6538656 (2003-03-01), Cheung et al.
patent: 6542541 (2003-04-01), Luna et al.
patent: 6842124 (2005-01-01), Penna
patent: 2001/0046260 (2001-11-01), Molloy
patent: 0663762 (1995-07-01), None
Lee et al: “Data Flow Processor for Multi-Standard Video Codec”, Custom Integrated Circuits Conference, 1994, Proceedings of the IEEE 1994 San Diego, CA, USA, May 1-4, 1994, pp. 103-106, XP010129914, ISBN: 0-7803-1886-2.
U.S. Appl. No. 09/437,208 entitled “Graphics Display System”, filed Nov. 9, 1999, Inventor: Alexander G. MacInnis et al.
U.S. Appl. No. 09/641,374 entitled “Video, Audio and Graphics Decode, Composite and Display System”, filed Aug. 18, 2000, Inventor: Alexander G. MacInnis et al.
U.S. Appl. No. 09/641,936 entitled “Video and Graphics System With an MPEG Video Decoder for Concurrent Multi-Row Decoding”, filed Aug. 18, 2000, Inventor: Ramanujan K. Valmiki et al.
U.S. Appl. No. 09/643,223 entitled “Video and Graphics System With MPEG Specific Data Transfer Commands”, filed Aug. 18, 2000, Inventor: Ramanujan K. Valmiki et al.
U.S. Appl. No. 09/640,670 entitled “Video and Graphics System With Video Scaling”, filed Aug. 18, 2000, Inventor: Alexander G. MacInnis et al.
U.S. Appl. No. 09/641,930 entitled “Video and Graphics System With a Video Transport Processor”, filed Aug. 18, 2000, Inventor: Ramanujan K. Valmiki et al.
U.S. Appl. No. 09/641,935 entitled “Video and Graphics System With Parallel Processing of Graphics Windows”, filed Aug. 18, 2000, Inventor: Alexander G. MacInnis et al.
U.S. Appl. No. 09/642,510 entitled “Video and Graphics System With a Single-Port RAM”, filed Aug. 18, 2000, Inventor: Xiaodong Xie.
U.S. Appl. No. 09/642,458 entitled “Video and Graphics System With an Integrated System Bridge Controller”, Inventor: Alexander G. MacInnis et al.

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