Motion video signal processing for recording or reproducing – Local trick play processing – With randomly accessible medium
Patent
1994-12-15
1996-12-17
Chin, Tommy P.
Motion video signal processing for recording or reproducing
Local trick play processing
With randomly accessible medium
348390, 386111, 386112, H04N 576
Patent
active
055859330
ABSTRACT:
A recording and/or reproducing apparatus for recording and/or reproducing image signals compressed according to different compressing methods. This recording and/or reproducing apparatus includes a compressing circuit for compressing first image data according to a first image data compressing method, a selecting circuit supplied with the first image data thus compressed and encoded by the compressing circuit and second image data compressed and encoded according to a second image data compressing method and selecting any one of the first and second compressed image data, and a first error correction encoding circuit for error correction encoding the selected compressed image data. The recording and/or reproducing apparatus further includes a recording and/or reproducing circuit for recording and/or reproducing the error correction encoded data on and/or from a recording medium, a first error correction decoding circuit for error correction decoding the compressed image data reproduced by the recording and/or reproducing circuit, an image data expanding circuit for expanding the compressed image data that has been error-corrected by the error correction decoding circuit, and an output circuit for outputting the first image data expanded by the image data expanding circuit. The second image data has a bit rate not greater than that of the first image data.
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"A Trend of Television System of the Next Generation in Western Countries", The Institute of Television Engineers of Japan, vol. 46, No. 3, pp. 276-283 (1992).
Arai Takao
Ichige Kenji
Okamoto Hiroo
Oku Masuo
Chin Tommy P.
Hitachi , Ltd.
Truong Khoi
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