KR940001127A - Digital magnetic recording and playback device using QPR modulation - Google Patents

Digital magnetic recording and playback device using QPR modulation Download PDF

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Publication number
KR940001127A
KR940001127A KR1019920010611A KR920010611A KR940001127A KR 940001127 A KR940001127 A KR 940001127A KR 1019920010611 A KR1019920010611 A KR 1019920010611A KR 920010611 A KR920010611 A KR 920010611A KR 940001127 A KR940001127 A KR 940001127A
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KR
South Korea
Prior art keywords
recording
qpr
magnetic recording
digital magnetic
signal
Prior art date
Application number
KR1019920010611A
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Korean (ko)
Inventor
박시훈
Original Assignee
강진구
삼성전자 주식회사
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.)
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Publication date
Application filed by 강진구, 삼성전자 주식회사 filed Critical 강진구
Priority to KR1019920010611A priority Critical patent/KR940001127A/en
Publication of KR940001127A publication Critical patent/KR940001127A/en

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Abstract

디지탈 자기기록재생장치에 있어서 고밀도기록을 위한 QPR변조방식의 기록재생장치가 개시 된다. 부분응답 여파기를 사용하여 L레벨의 신호를 (2L-1)레벨의 신호로 변환하여 변조시킴으로서 주파수대역 이용효율이 증대 하고 부호간 간섭이 감소하므로 우수한 성능의 채널코딩을 실현할 수 있다.In a digital magnetic recording and reproducing apparatus, a recording and reproducing apparatus of a QPR modulation method for high density recording is disclosed. By converting the L-level signal into a (2L-1) level signal using a partial response filter and modulating the signal, the frequency band utilization efficiency is increased and inter-code interference is reduced.

Description

QPR 변조방식을 사용한 디지탈 자기기록재생장치Digital magnetic recording and playback device using QPR modulation

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

제1도는 본 발명의 디지탈 자기기록재생장치의 구성도를 보이는 도면이다,1 is a diagram showing the configuration of the digital magnetic recording and reproducing apparatus of the present invention.

제2A-2C도는 제1도의 부분응답기를 보이는 도면이다,2A-2C show the partial response machine of FIG.

제3A-3B도는 QAR방식과 본 발명의 QPR방식의 신호점을 보이는 도면이다.3A-3B show signal points of the QAR method and the QPR method of the present invention.

Claims (2)

2원부호의 데이타를 자기테이프에 기록 및 재생하는 디지탈 자기기록재생장치에 있어서. 상기 2원부호의 데이타를 변조하는 QPR변조기; 상기 QPR변조기로부터의 출력을 상기 자기테이프에 기록하는 신호기록부; 상기 자기테이프에 기록된 신호를 재생하는 신호재생부; 상기 신호재생부로부터의 출렬을 복조하는 QPR복조기를 구비하는 QPR변조방식의 디지탈 자기기록재생장치.A digital magnetic recording and reproducing apparatus for recording and reproducing binary coded data on magnetic tape. A QPR modulator for modulating the binary code data; A signal recording section for recording the output from the QPR modulator on the magnetic tape; A signal reproducing unit for reproducing a signal recorded on the magnetic tape; And a QPR demodulator for demodulating output from the signal reproducing section. 제1항에 있어서, 상기 QPR변조기는 제1종 부분응답여파기를 포함하는 것을 특징으로 하는 QPR변조방식의 디지탈 자기기록재생장치.The digital magnetic recording and reproducing apparatus according to claim 1, wherein the QPR modulator includes a first type partial response filter. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019920010611A 1992-06-18 1992-06-18 Digital magnetic recording and playback device using QPR modulation KR940001127A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019920010611A KR940001127A (en) 1992-06-18 1992-06-18 Digital magnetic recording and playback device using QPR modulation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019920010611A KR940001127A (en) 1992-06-18 1992-06-18 Digital magnetic recording and playback device using QPR modulation

Publications (1)

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KR940001127A true KR940001127A (en) 1994-01-10

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KR1019920010611A KR940001127A (en) 1992-06-18 1992-06-18 Digital magnetic recording and playback device using QPR modulation

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100691608B1 (en) * 2005-02-21 2007-03-12 (주)나노하이브리드 A base forming drug - layerd silicate hybrid containing basic polymer and its synthesis method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100691608B1 (en) * 2005-02-21 2007-03-12 (주)나노하이브리드 A base forming drug - layerd silicate hybrid containing basic polymer and its synthesis method

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