发明授权
US07343083B2 Digital video signal record and playback device and method for selectively reproducing desired video information from an optical disk 有权
用于从光盘选择性地再现所需视频信息的数字视频信号记录和播放装置和方法

Digital video signal record and playback device and method for selectively reproducing desired video information from an optical disk
摘要:
A digital video signal record and playback device for recording on a recording medium a digital video signal coded by using a motion compensation prediction and an orthogonal transform and playing back data from the recording medium. In a data arrangement of a digital video signal, an I picture which can be independently represented in a picture is divided into n areas in the vertical direction, and the data is arranged from the front of one GOP in the unit of area by giving a priority to an area located at the center of the screen. A playback picture is outputted by playing back the I picture read from the recording medium in the unit of area unit. In the case where the whole I picture area cannot be read within a definite time, the area which cannot be read are interpolated by the use of the data of the preceding screen.
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