Television – Bandwidth reduction system – Data rate reduction
Patent
1996-12-11
2000-02-22
Chin, Tommy P.
Television
Bandwidth reduction system
Data rate reduction
348699, H04N 712
Patent
active
060286385
ABSTRACT:
A half-pixel processing apparatus of a macroblock for motion compensation of a moving image in which NxN pixel data selected for the motion compensation of the moving image is divided into a predetermined unit and half-pixel processed. The half-pixel processing apparatus includes a first unit which sums successive pixel data constituting the N kinds of pixel data and pixel data horizontally adjacent to the successive pixel data constituting the N kinds of pixel data according to a horizontal half-pixel processing signal which is input from an external source. A pipeline unit sequentially stores and outputs the data applied from the first unit. A second unit sums the pixel data output from the pipeline unit and pixel data vertically adjacent to the pixel data output from the pipeline unit according to a vertical half-pixel processing signal which is input from an external source. A data processor half-pixel processes the data applied from the second unit and has the data pass through according to the horizontal half-pixel processing signal and the vertical half-pixel processing signal. Flip-flops divide the data applied from the data processor according to a clock pulse and store the divided data. Multiple-xers select and output data necessary for motion compensation among the data output from the flip-flops.
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IBM Technical Disclosure Bulletin, vol. 39, No. 12, pp. 161-166.
Chin Tommy P.
Philippe Gims
Samsung Electronics Co,. Ltd.
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