Motion video signal processing for recording or reproducing – Local trick play processing – With randomly accessible medium
Patent
1995-06-06
1999-03-02
Tran, Thai
Motion video signal processing for recording or reproducing
Local trick play processing
With randomly accessible medium
386 99, 386101, 386112, 360 32, 360 48, 360 64, H04N 576, H04N 592, G11B 500, G11B 509
Patent
active
058781838
ABSTRACT:
A digital video/audio recording and reproducing apparatus comprising a video signal high-efficiency encoder having a variable reduction rate, an audio signal high-efficiency encoder having a variable reduction rate, and a controller for controlling the reduction rates in both of the high-efficiency encoders. The reduction rates in both of the high-efficiency encoders are controlled in such a manner that the sum of the information amount of the video signal and that of the audio signal, after high-efficiency encoding, is maintained constant. When recording multi-channel audio signals, the reduction rates in both of the high-efficiency encoders are controlled according to the number of audio signal channels to be recorded. The high frequency components of the high-efficiency encoded video and audio signals are recorded at the end portions of recording tracks on a magnetic tape, while the low frequency components thereof are recorded in the central portion of the recording tracks.
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Hongo Kimitoshi
Onishi Ken
Ono Yukari
Sugiyama Kazuhiro
Mitsubishi Denki & Kabushiki Kaisha
Tran Thai
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