Importance

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Abstract

An apparatus records and reproduces high efficiency coded video signal to and from a recording medium and includes an important data generating circuit for generating at least an important data from an input video signal, a data arranging circuit for arranging the important data so as to be recorded at predetermined positions, and a recording and reproduction control circuit for controlling recording and reproducing operations. The input video signal is separated into information common to each large block and information native to small blocks of the each large block. A coding mode of each of the small blocks thus separated is judged. The input video signal is divided into a plurality of packets, data for generating a common information from the input video signal is decoded, the common information thus generated is stored at a predetermined position of a packet, and each packet is sequentially recorded on a recording medium. Data for generating a common information from a predetermined position of each packet is read out when reproducing a recorded signal, the common information is generated from read-out data, and plural small blocks are collected using the common information thereby to compose a large block, so that high speed reproduction can be obtained when an intra-/inter-picture coded signal is recorded.

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First Claim