Method and apparatus of retrieving voice coded data and moving i

Details Method and apparatus of retrieving voice coded data and moving i Method and apparatus of retrieving voice coded data and moving i

1997-05-23

2000-11-07

Garber, Wendy

Motion video signal processing for recording or reproducing

Local trick play processing

With randomly accessible medium

386 75, 37524003, H04N 591

Patent

active

061447994

ABSTRACT:
There is provided retrieving method and apparatus for performing automatic search for a necessary search point by analyzing coded data without decoding it. Voice/moving image compressed data recorded on a recording/reproducing device is sequentially read at a high speed, code quantities and coding process parameters of individual pictures in the moving image compressed data are detected to analyze a feature of each picture, voice coding process parameters are detected from voice compressed data to analyze a feature of each voice, deciding, on the basis of results of analysis of voice and picture, whether the retrieved data is a point to be searched, and when a search point is determined, the recording/reproducing device is controlled such that corresponding voice/moving image compressed data is read at a standard speed and the read-out data is decoded to perform automatic search for desired voice/moving image coded data.

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