Optical disk apparatus for the reproduction of compressed data

Details Optical disk apparatus for the reproduction of compressed data Optical disk apparatus for the reproduction of compressed data

1994-03-29

1998-07-28

Tran, Thai

Motion video signal processing for recording or reproducing

Local trick play processing

With randomly accessible medium

383106, 383111, H04N 5783

Patent

active

057872252

ABSTRACT:
An optical disk apparatus includes: a signal processor for reading video data and audio data from an optical disk and for generating a video data signal and an audio data signal in accordance with the read-out video data and audio data; a video decoder for receiving the video data signal from the signal processor and for generating a reproduced video signal based on the received video data signal; and a controller for generating a high-speed reproduction control signal for switching from a normal reproduction to a high-speed reproduction, wherein the video decoder includes: video data decoder for decoding the video data signal; and a circuit for, when the high-speed reproduction control signal is received from the controller, outputting signals only corresponding to intra-coded video data and forward predictive coded video data among the decoded video data signals as the reproduced video signals, and for, otherwise, outputting the decoded video data signals as the reproduced video signals.

REFERENCES:
patent: 5140437 (1992-08-01), Yonemitsu et al.
patent: 5305113 (1994-04-01), Iwamura et al.
patent: 5371602 (1994-12-01), Tsuboi et al.
patent: 5377051 (1994-12-01), Lane et al.

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