KR920020464A - Error detection device of digital magnetic recorder / player - Google Patents

Error detection device of digital magnetic recorder / player Download PDF

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Publication number
KR920020464A
KR920020464A KR1019910005538A KR910005538A KR920020464A KR 920020464 A KR920020464 A KR 920020464A KR 1019910005538 A KR1019910005538 A KR 1019910005538A KR 910005538 A KR910005538 A KR 910005538A KR 920020464 A KR920020464 A KR 920020464A
Authority
KR
South Korea
Prior art keywords
unit
error
synchronization signal
level
equalizer
Prior art date
Application number
KR1019910005538A
Other languages
Korean (ko)
Other versions
KR0152771B1 (en
Inventor
박종엽
Original Assignee
이헌조
주식회사 금성사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 이헌조, 주식회사 금성사 filed Critical 이헌조
Priority to KR1019910005538A priority Critical patent/KR0152771B1/en
Publication of KR920020464A publication Critical patent/KR920020464A/en
Application granted granted Critical
Publication of KR0152771B1 publication Critical patent/KR0152771B1/en

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Classifications

    • 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
    • G11B20/18—Error detection or correction; Testing, e.g. of drop-outs

Abstract

내용 없음No content

Description

디지탈 자기기록/재생기의 에러검출장치Error detection device of digital magnetic recorder / player

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

제3도는 본 고안에 따른 에러검출장치의 블록구성도,3 is a block diagram of an error detection apparatus according to the present invention,

제4도의 (가) 내지 (마)는 본 고안에 다른 설명도.(A) to (E) of Figure 4 is another explanatory diagram in the present invention.

Claims (1)

자기테이프(1)에서 재생헤드(b)를 통하여 재생된 전기적신호가 증폭 및 등화되는 재생증폭부(6) 및 등화기(7)와, 상기 등화기(7)의 출력신호를 디지탈 신호로 복원하는 복조부(8)및 클럭을 복원하는 위상동기 루프회로(9)와, 복조된 디지탈 데이타에 발생한 에러를 정정하여 재생 데이타로 출력하는 에러정정복호화부(10)로 구성된 디지탈 자기기록/재생기에 있어서, 상기 등화기(7)의 출력신호에서 비트단위의 레벨을 검출하는 비트레벨판별부(11)와, 비트단위레벨에서 같은 극성사시에 반대극성이 존재해야 하는 극성의 반복특성에 의해 에러위치를 검출하는 에러위치 검출부(12)와, 복조된 디지탈 데이타 신호에서 동기신호를 검출함과 아울러 동기신호다음 데이타에서 기호단위로 카운트 하는 동기신호검출 및 카운터부(13)와, 상기 에러위치검출부(12) 및 상기 동기신호검출 및 카운터부(13)의 출력을 비교하여 기호별로 에러플래그를 발생시켜서 에러정정을 하는 에러플래그발생부(14)를 포함하여 구성된 것을 특징으로 하는 디지탈 자기기록/재생기의 에러검출장치.Regeneration amplifier 6 and equalizer 7 in which the electric signals reproduced from the magnetic tape 1 through the reproduction head b are amplified and equalized, and the output signals of the equalizer 7 are restored to digital signals. And a phase correction loop circuit 9 for restoring a clock, and an error correction decoder 10 for correcting an error occurring in the demodulated digital data and outputting the reproduced data. The error position is determined by the bit level discrimination unit 11 for detecting the level of the bit unit in the output signal of the equalizer 7 and the repetition characteristic of the polarity in which the opposite polarity must exist at the same polarity level at the bit unit level. An error position detection unit 12 for detecting a signal, a synchronization signal detection and counter unit 13 for detecting a synchronization signal from the demodulated digital data signal, and counting a symbol unit from the data following the synchronization signal; 12) and An error detection device for a digital magnetic recorder / player characterized in that it comprises an error flag generation unit (14) for error correction by generating an error flag for each symbol by comparing the synchronization signal detection and the output of the counter unit (13). . ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019910005538A 1991-04-06 1991-04-06 Error detecting device for digital magnetic recording/reproducing player KR0152771B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019910005538A KR0152771B1 (en) 1991-04-06 1991-04-06 Error detecting device for digital magnetic recording/reproducing player

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019910005538A KR0152771B1 (en) 1991-04-06 1991-04-06 Error detecting device for digital magnetic recording/reproducing player

Publications (2)

Publication Number Publication Date
KR920020464A true KR920020464A (en) 1992-11-21
KR0152771B1 KR0152771B1 (en) 1998-10-15

Family

ID=19312984

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019910005538A KR0152771B1 (en) 1991-04-06 1991-04-06 Error detecting device for digital magnetic recording/reproducing player

Country Status (1)

Country Link
KR (1) KR0152771B1 (en)

Also Published As

Publication number Publication date
KR0152771B1 (en) 1998-10-15

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