KR940001127A - Digital magnetic recording and playback device using QPR modulation - Google Patents
Digital magnetic recording and playback device using QPR modulation Download PDFInfo
- 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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- recording
- qpr
- magnetic recording
- digital magnetic
- signal
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- Signal Processing For Digital Recording And Reproducing (AREA)
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
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)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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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 |
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KR1019920010611A KR940001127A (en) | 1992-06-18 | 1992-06-18 | Digital magnetic recording and playback device using QPR modulation |
Publications (1)
Publication Number | Publication Date |
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KR940001127A true KR940001127A (en) | 1994-01-10 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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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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KR (1) | KR940001127A (en) |
Cited By (1)
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 |
-
1992
- 1992-06-18 KR KR1019920010611A patent/KR940001127A/en not_active Application Discontinuation
Cited By (1)
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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