KR950004235A - Digital recording and reproducing method and apparatus - Google Patents

Digital recording and reproducing method and apparatus Download PDF

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Publication number
KR950004235A
KR950004235A KR1019930013468A KR930013468A KR950004235A KR 950004235 A KR950004235 A KR 950004235A KR 1019930013468 A KR1019930013468 A KR 1019930013468A KR 930013468 A KR930013468 A KR 930013468A KR 950004235 A KR950004235 A KR 950004235A
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KR
South Korea
Prior art keywords
data
error correction
code
encoding
decoding
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KR1019930013468A
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Korean (ko)
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KR0155736B1 (en
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김태응
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김광호
삼성전자 주식회사
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Priority to KR1019930013468A priority Critical patent/KR0155736B1/en
Publication of KR950004235A publication Critical patent/KR950004235A/en
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    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing

Abstract

본 발명은 디지탈 기록재생장치방법 및 장치에 관한 것으로, 특히 2차원 에러정정코드 중 외부호 패리티 데이타를 코딩하는 디지탈 기록재생방법 및 장치에 관한 것이다.The present invention relates to a digital recording and reproducing apparatus method and apparatus, and more particularly, to a digital recording and reproducing method and apparatus for coding external code parity data in a two-dimensional error correction code.

이를 위하여 에러정정을 위한 에러정정코드 블럭을 형성하기 위하여 복수개(정수 N)의 데이타 블럭을 구성하고 데이타 블럭의 압축 데이타를 한 싱크블럭마다 지그재그로 읽어들여 정수 N개의 데이타 블럭의 외부호 패리티 데이타영역에 외부호 패리티 데이타를 순차적으로 분산코딩한다.To this end, in order to form an error correction code block for error correction, a plurality of (integer N) data blocks are formed, and compressed data of the data blocks are read in zigzag per sync block, and the outer code parity data area of the integer N data blocks The outer code parity data is sequentially distributed coded into the.

따라서 하나의 단위블럭으로 코딩하는 것보다 외부호 에러정정 처리효율을 높일 수 있는 효과가 있다.Therefore, there is an effect that the processing efficiency of the outer code error correction can be improved rather than coding into one unit block.

Description

디지탈 기록재생방법 및 장치Digital recording and reproducing method and apparatus

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

제1도는 본 발명을 설명하기 위한 에러정정코드의 블럭구성도, 제3도는 본 발명의 일 실시예에 따른 외부호 패리티 데이타 코딩방식을 도시한 도면, 제4도는 본 발명에 따른 디지탈 기록재생장치의 블럭도, 제5도는 제4도의 RS부호수단의 상세 블럭도.1 is a block diagram of an error correction code for explaining the present invention, FIG. 3 is a diagram showing an external code parity data coding scheme according to an embodiment of the present invention, and FIG. 4 is a digital recording / playback apparatus according to the present invention. Fig. 5 is a detailed block diagram of the RS coding means of Fig. 4;

Claims (2)

화면의 이미지 데이타를 비트 레이트(Bit Rate)감소를 위해 압축부호화하고, 압축된 데이타를 싱크코드와 식별코드를 삽입하여 에러정정을 위한 에러정정코드 블럭을 형성하여, 기록매체인 자기테이프의 복수의 트랙에 기록하고, 자기 테이프로부터 기록된 데이타를 재생하는 디지탈 기록재생방법에 있어서, 상기 에러정정을 위한 에러정정코드 블럭을 형성하기 위하여 복수개(정수 N)의 데이타 블럭을 구성하고 상기 데이타 블럭의 압축 데이타를 한 싱크블럭마다 지그재그로 읽어들여 상기 정수 N개의 데이타 블럭의 외부호 패리티 데이타영역에 외부호 패리티 데이타를 순차적으로 분산코딩함을 특징으로 하는 디지탈 기록재생방법.Compression and encoding of image data on the screen for bit rate reduction, and inserting a sync code and an identification code into the compressed data to form an error correction code block for error correction, thereby generating a plurality of magnetic tapes as recording media. A digital recording and reproducing method for recording data on a track and reproducing data recorded from a magnetic tape, comprising forming a plurality of (integer N) data blocks to form an error correction code block for correcting the error and compressing the data block. A digital recording and reproducing method according to claim 1, wherein data is read in a zigzag pattern for each sync block, and the outer code parity data is sequentially distributedly coded in an outer code parity data area of the integer N data blocks. 화면의 이미지 데이타를 인코드하여 자기 테이프에 기록하기 위한 인코더 (90)와 상기 자기 테이프로부터 기록 데이타를 픽업하고 디코드하여 원래의 이미지 데이타를 복원하는 디코더(100)를 구비한 디지탈 기록재생장치에 있어서, 상기 인코더(90)는, 입력되는 이미지 데이타를 디지탈로 변환하고, 원하는 포맷파일로 전송하는 전처리수단(10); 데이타를 압축부호화하기 위한 데이타 압축부호수단(20); 상기 압축부호화된 데이타를 읽어들여 외부호 패리티 데이타를 복수의 데이타 블럭에 분산코딩하고 싱크코드와 식별코드를 부가한 다음, 내부호 패리티 데이타를 부가하는 에러정정 부호수단(30); 상기 데이타를 채널로 전송하기 위하여 상기 데이타를 변조하는 채널 변조수단(40)을 구비하며, 상기 디코더(100)는, 상기 자기 테이프로부터 픽업된 데이타를 채널 디코딩하는 채널 복호수단(50); 채널 복호된 데이타를 2차원 리드-솔로몬(Reed-Solomon)디코딩을 통하여 에러정정하기 위한 에러정정 복호수단(60); 상기 에러정정하고 압축부호화된 데이타를 신장 복호화하여 이미지 데이타를 복원하는 데이타 신장복호수단(70); 상기 전처리수단(10)의 역기능을 수행하기 위한 역전처리수단(80)을 구비한 것을 특징으로 하는 디지탈 기록재생장치.A digital recording and reproducing apparatus comprising an encoder (90) for encoding image data of a screen and recording on a magnetic tape, and a decoder (100) for picking up and decoding recorded data from the magnetic tape to restore original image data. The encoder (90) comprises: preprocessing means (10) for converting input image data into digital and transmitting the desired format file; Data compression encoding means (20) for compressing and encoding data; Error correction encoding means (30) for reading the compressed coded data to distribute and code outer code parity data into a plurality of data blocks, add a sync code and an identification code, and add internal code parity data; Channel modulation means (40) for modulating the data to transmit the data over a channel, the decoder (100) comprising: channel decoding means (50) for channel decoding data picked up from the magnetic tape; Error correction decoding means (60) for error correction of the channel decoded data through two-dimensional Reed-Solomon decoding; Data decompression / decoding means (70) for decompressing the error corrected and decoded data to restore image data; And a reverse preprocessing means (80) for performing the reverse function of the preprocessing means (10). ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019930013468A 1993-07-16 1993-07-16 Digital recording/reproducing method and apparatus KR0155736B1 (en)

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KR1019930013468A KR0155736B1 (en) 1993-07-16 1993-07-16 Digital recording/reproducing method and apparatus

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KR1019930013468A KR0155736B1 (en) 1993-07-16 1993-07-16 Digital recording/reproducing method and apparatus

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KR950004235A true KR950004235A (en) 1995-02-17
KR0155736B1 KR0155736B1 (en) 1998-12-15

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100482939B1 (en) * 2000-12-12 2005-04-15 가부시끼가이샤 도시바 Data processing method using error-correcting code and an apparatus using the same method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100482939B1 (en) * 2000-12-12 2005-04-15 가부시끼가이샤 도시바 Data processing method using error-correcting code and an apparatus using the same method

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