Patent ID: 6134382
Filing Date: 2000-10-17
Classification: H04N

Abstract:
A digital video signal record and playback device for recording and playing back on a recording medium in units of several frames digital video signal coded in units of several frames in which an I picture for an intra-frame coding, a P picture for a motion compensation prediction in a forward direction, and a B picture for the motion compensation prediction by using as reference pictures the I picture and the P picture located before and after in time, said device comprising:means for dividing one frame portion of video data into n areas (n>1) with respect to at least an I picture for intra-frame coding at the time of recording;means for recording a central area by giving recording priority on the recording medium to the central area with respect to the I picture frame which is divided into the n areas, while at the same time recording position information representative of the recording position on the recording medium of divided 1 through n areas;means for reading at least the I picture from the recording medium at the time of special playback;a buffer memory for storing data of the I picture which is read; andinterpolating means for interpolating an area which cannot be read using data of a preceding screen when an entire I picture area cannot be read.