Motion video signal processing for recording or reproducing – Local trick play processing – With randomly accessible medium
Patent
1994-10-04
1996-12-24
Tran, Thai Q.
Motion video signal processing for recording or reproducing
Local trick play processing
With randomly accessible medium
371 21, 371 30, 371 48, 386113, H04N 576
Patent
active
055878075
ABSTRACT:
In an apparatus for processing input N-bit digital video data with an error correction parity, the input N-bit digital video data includes each one sample of higher-order-N-bit data and a plurality of samples of lower-order-(M-N)-bit data, wherein M>N. An error correction circuit corrects an error of input N-bit digital video data, outputs error-corrected N-bit digital video data, and generates an error detection signal representing an error which can not be corrected. Further, a data combining circuit converts the error-corrected N-bit digital video data into M-bit digital video data, and an error classifying circuit classifies the error detection signal into a first error detection signal representing an error of the each one sample of the higher-order-N-bit data and a second error detection signal representing an error of the plurality of samples of the lower-order-(M-N)-bit data. An error concealment circuit performs an error concealment process for the converted M-bit digital video data based on only the first error detection signal.
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Higashida Masaaki
Ootsuka Takeshi
Matsushita Electric - Industrial Co., Ltd.
Tran Thai Q.
Truong Khol
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