Apparatus and method for providing plural pictures while searching a recording medium whereon a compressed picture signal is recorded

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United States of America Patent

PATENT NO 5504585
SERIAL NO

08125685

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A method and apparatus for reproducing pictures from a recording medium in search mode wherein each picture is recorded in the recording medium in the form of a coded signal. The coded signal is coded in either an intra-picture coding mode or an inter-picture coding mode. The coded signal of a picture coded in the intra-picture coding mode is an I-picture; the coded signal of a picture coded in the inter-picture coding mode with only forward prediction is a P-picture; and the coded signal of a picture coded in the inter-picture coding mode with bidirectional prediction is a B-picture. The pictures are reproduced from a read position on the recording medium. To provide an increased number of pictures in search mode, the read position is changed to a first read position, and an I-picture is immediately reproduced from the recording medium at the first read position. Then, at least one B-picture or one P-picture is immediately reproduced from the recording medium following the I-picture. Finally, the I-picture and the at least one B-picture or P-picture is decoded to provide an output signal for display.

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Patent Owner(s)

Patent OwnerAddress
SONY CORPORATIONTOKYO 108-0075

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Fujinami, Yasushi Kanagawa, JP 169 3928
Veltman, Markus H Tokyo, JP 9 1231

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