Triple-buffering method for overlapped motion compensation...

Details Triple-buffering method for overlapped motion compensation... Triple-buffering method for overlapped motion compensation...

2007-08-28

2007-08-28

An, Shawn S. (Department: 2621)

Pulse or digital communications

Bandwidth reduction or expansion

Television or motion video signal

C375S240250, C375S240160, C375S240260, C375S240120, C375S240230, C348S699000, C382S233000, C382S235000, C382S238000, C345S537000, C345S539000

Reexamination Certificate

active

10294647

ABSTRACT:
A method of improving performance within video decoders subject to the execution of overlapped motion compensation. The method utilizes a triple-buffering approach to achieve rapid data transfers and to eliminate transfer and decoding delays. Each of the three buffers is sequentially utilized for (i) receipt of decoded macroblock data, (ii) insertion of additional decoded macroblock data from a subsequent decoding stage, and finally (iii) the transfer of the collected macroblock data to a transfer buffer. The method is applicable to a number of multiprocessing decoders, and is especially well suited for MPEG-4 and H.263 multiprocessing decoders.

REFERENCES:
patent: 6542541 (2003-04-01), Luna et al.
patent: 6781589 (2004-08-01), Macy et al.

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