KR930017005A

KR930017005A - Digital signal recording method

Info

Publication number: KR930017005A
Application number: KR1019920000721A
Authority: KR
Inventors: 하데끼 오오타카; 아끼후미 이데; 아끼라 이께다니; 마사카즈 니시노; 토쯔로 쥬티; 치요꼬 미쯔미
Original assignee: 다니이 아끼오; 마쯔시다덴기산교 가부시기가이샤
Priority date: 1992-01-20
Filing date: 1992-01-20
Publication date: 1993-08-30

Abstract

비데오신호의 고능률 부호화형식을 기록테이프의 동기블록에 기록하는데 있어서, 화상을 재생하는 결정적인 역할을 하지않는 비데오신호의 유효하지 않은 데이터를, 유효한 데이터와 분리된 한개이상의 동기블록에 기록한다. 따라서 유효한 데이터를 전송하는 유효동기블록을 고속재생모우드에서 특히 재생할때에, 화상을 재생할 수 있다.In recording a high efficiency coding format of a video signal in a sync block of a recording tape, invalid data of a video signal that does not play a decisive role in reproducing an image is recorded in one or more sync blocks separated from the valid data. Therefore, the image can be reproduced, particularly when the effective synchronization block for transmitting valid data is reproduced in the high speed reproduction mode.

Description

Digital signal recording method

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 본 발명의 제1실시예에 관한 디지틀신호기록방법에 의하여 지정되는 일련의 데이터 및 동기블록열을 나타내는 설명도, 제2도는 직교변환신호의 AC성분을 엔코우닝하는 순서를 나타내는 설명도. 제3도는 정상재생모우드로 작동시 판독헤드의 추적을 나타내는 설명도, 제4도는 고속재생모우드로 작동시 동기블록열을 횡단하는 판독헤드의 추적을 나타내는 설명도, 제5도는 본 발명의 제2실시예에 관한 디지틀 신호기록방법에 의하여 지정되는 일련의 데이터 및 동기블록열을 나타내는 설명도.1 is an explanatory diagram showing a series of data and a sync block string designated by a digital signal recording method according to the first embodiment of the present invention, and FIG. 2 is an explanatory diagram showing a procedure of encoding an AC component of an orthogonal transform signal. . FIG. 3 is an explanatory diagram showing tracking of the readhead when operating in the normal playback mode, and FIG. 4 is an explanatory diagram showing tracking of the readhead traversing the sync block string when operating in the high speed playback mode, and FIG. 5 is a second diagram of the present invention. An explanatory diagram showing a series of data and sync block strings designated by a digital signal recording method according to the embodiment.

Claims

Dividing an input video signal into m blocks, and recording m-block high efficiency coded data into n sync blocks in which all invalid parts of the m block data are allocated to the n sync block area. How to record a signal.

2. The method of claim 1, wherein high efficiency encoding of data is performed by an orthogonal transformation technique.

3. The method of claim 1 or 2, wherein the invalid data is the same as the high frequency portion of the m block data divided from the input video signal.

4. The method according to claim 1, 2 or 3, wherein invalid data is allocated k times in n sync blocks at the time of recording.

4. The method of claim 1, 2 or 3, wherein invalid data is allocated to each area of the n sync block.

A process of dividing the input video signal into m blocks, and additionally, candidate candidate information necessary for decoding the m-block data and the low-frequency components of the m-block data to n sync blocks each allocated i times from the front end of the sync block. A digital signal recording method comprising a step of recording high efficiency encoded data of a block.

7. The method of claim 6, wherein high efficiency encoding of data is performed by an orthogonal transformation technique.

※ Note: The disclosure is based on the initial application.