Apparatus for controlling a sum of varying information amount of

Motion video signal processing for recording or reproducing – Local trick play processing – With randomly accessible medium

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386101, 386104, 360 32, 360 48, H04N 592, H04N 5928

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active

058899219

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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The translation of JP 4-104683, Apr. 7, 1992.

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