Motion video signal processing for recording or reproducing – Local trick play processing – With randomly accessible medium
Patent
1994-05-11
1996-11-12
Britton, Howard W.
Motion video signal processing for recording or reproducing
Local trick play processing
With randomly accessible medium
348423, 386116, H04N 5945
Patent
active
055745687
ABSTRACT:
In a recording apparatus for video signals, adjacent pixels in input image signals are collected as blocks and subjected to orthogonal transformation. Then, the dc component, control data, ac components, end-of-block signal and the like in a block after orthogonal transformation are coded and the codewords are arranged in prescribed record areas. One or a plurality of record areas forms a correction area, and error correction coding is performed and recorded on the data in a correction area. When record data are reproduced and recorded again, errors are detected in the unit of the error correction area. The dc component and the like in a record area wherein an error which cannot be corrected exists are replaced by a codeword which is not used ordinarily, and a codeword for the first ac component is replaced by an end-of-block codeword.
REFERENCES:
patent: 5247363 (1993-09-01), Sun
patent: 5267036 (1993-11-01), Habraken
patent: 5272528 (1993-12-01), Juri
patent: 5282049 (1994-01-01), Hatakenaka
patent: 5450506 (1995-09-01), Gillard
W. Chen and C. H. Smith, "Adaptive Coding of Monochrome and Color Images", IEEE Transactions on Communications, vol. COM-25, No. 11, pp. 1285-1292 (1977).
The Journal of the Institute of Television Engineers of Japan, vol. 45, No. 7, pp. 813-819 (1991).
Juri Tatsuro
Yamauchi Eiji
Britton Howard W.
Matsushita Electric - Industrial Co., Ltd.
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