Motion vector search apparatus

Details Motion vector search apparatus Motion vector search apparatus

2007-06-13

2011-11-22

Chai, Longbit (Department: 2431)

Pulse or digital communications

Bandwidth reduction or expansion

Television or motion video signal

C375S240120, C375S240130, C375S240140, C375S240150, C382S232000

Reexamination Certificate

active

08064523

ABSTRACT:
A motion vector search apparatus has two internal memories for storing one macroblock of current image data each and N internal memories for storing M macroblocks of reference image data each, where M and N are integers greater than one. Selectors feed data from one of the current image memories and N−1 of the reference image memories to a processor that carries out a block matching calculation, on the basis of which a detector finds a motion vector for the selected macroblock of current image data. During the search, data for one new current image macroblock and M new reference image macroblocks are read into the non-selected memories, so that as soon as the motion vector is found, the search for the next motion vector can begin.

REFERENCES:
patent: 7792193 (2010-09-01), Tanizawa et al.
patent: 2003/0174775 (2003-09-01), Nagaya et al.
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patent: 2004-356673 (2004-12-01), None
Nakayama et al., “Tei shohi denryoku MPEG-4 bideo kodekkku koa” (A low-power MPEG-4 video codec core), Fujitsu, 55[6] (Nov. 2004), pp. 528-533.

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