Image processing system for recording or reproducing an image signal sequence which has been encoded by employing two predictive coding methods and combining the results of those methods

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United States of America Patent

PATENT NO 4931879
SERIAL NO

07189249

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Abstract

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In an image recording system for use in recording a sequence of coded signals on a recording medium, such as a CD-ROM in response to a sequence of image signals divisible into a succession of frames each of which is subdivided into a plurality of splits, the image signals are selectively subjected to interframe coding and intraframe coding in a coder to be coded into first and second error signals, respectively, under control of a coding control circuit. The intraframe coding may be carried out about a selected split at every frame, at every preselected period, or at predetermined positions of each scene. The second and the first error signals are rearranged into the coded signals by delaying the second error signal relative to the first error signal. Such a second error signal serves to reproduce an initial image on reproducing the coded signals and enables a reverse reproduction, a quick search, a high speed reproduction, and the like in a reproducing system.

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Patent Owner(s)

Patent OwnerAddress
NEC CORPORATION 33-1 SHIBA 5-CHOME MINATO-KU TOKYO JAPANNot Provided
NEC HOME ELECTRONICS LTD 5-24 MIYAHARA 3-CHOME YODOGAWA-KU OSAKA-SHI OSAKA JAPANNot Provided

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Koga, Toshio Tokyo, JP 35 921
Kunihiro, Hideto Osaka, JP 7 262
Ohki, Junichi Tokyo, JP 23 519
Ohta, Mutsumi Tokyo, JP 21 988

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