Patent ID: 6097877
Filing Date: 2000-08-01
Classification: G11B,H04N

Abstract:
A digital recording and reproducing apparatus for recording and reproducing a HDTV high-resolution digital image signal, comprising:means for recording said high resolution signal and a SDTV low resolution signal for a normal playback speed in a normal playback mode, said low resolution signal formed by converting at least a part of an encoding scheme of said high resolution signal; andmeans for setting a plurality of predetermined special playback speeds in a plurality of special playback modes which are higher than said normal playback speed, at multiples of said normal playback speed so that factors of said plurality of plural special playback speeds have at least a common multiple of l.c.m.,for setting a multiple of a plurality of recording tracks for one frame period equal to l.c.m. or a multiple thereof, so that a recording track pattern will have the periodicity of said multiple of said plurality of recording tracks for one frame period at any of said predetermined special playback speeds, thereby facilitating simple processing of a plurality of special plural signals, andfor recording said high-resolution signal, said low-resolution signal, and at least one of said plurality of special playback signals, each signal having identical content but differing resolution in a thus created recording area, wherein said high-resolution and low-resolution signals are reproduced in said normal playback mode at said normal playback speed, said low-resolution signal further reproduced in at least one of said plurality of special playback modes at at least one of said plurality of special playback speeds.