Digital video/audio recording and reproducing apparatus

Details Digital video/audio recording and reproducing apparatus Digital video/audio recording and reproducing apparatus

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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