Motion video signal processing for recording or reproducing – Local trick play processing – With randomly accessible medium
Patent
1995-05-02
1996-12-24
Tran, Thai Q.
Motion video signal processing for recording or reproducing
Local trick play processing
With randomly accessible medium
348403, 348420, 371 371, H04N 979
Patent
active
055878032
ABSTRACT:
Fast speed playback is performed with a reduced error-correcting capability as compared with that for normal speed playback. Information of K symbols is encoded with a first error-correcting code C1 and appended with (N-K) check symbols. After that, m symbols out of the check symbols are punctured, and the information of K symbols is divided into a block of K.sub.1 symbols and a block of K.sub.2 symbols, the block of K.sub.1 symbols being further encoded with a second error-correcting code Cm and appended with m.sub.1 check symbols for error correction. For efficient error-correction coding of auxiliary data which is usually not used but which becomes necessary on occasions, the presence or absence of auxiliary data is written in ID information, and the number of error-correcting check symbols is changed accordingly.
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Inoue Sadayuki
Inoue Tohru
Okuma Ikuo
Onishi Ken
Mitsubishi Denki & Kabushiki Kaisha
Tran Thai Q.
Truong Khoi
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