KR940004600A - Recording demodulation device for digital magnetic tape recording and playback device - Google Patents

Recording demodulation device for digital magnetic tape recording and playback device Download PDF

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Publication number
KR940004600A
KR940004600A KR1019920015786A KR920015786A KR940004600A KR 940004600 A KR940004600 A KR 940004600A KR 1019920015786 A KR1019920015786 A KR 1019920015786A KR 920015786 A KR920015786 A KR 920015786A KR 940004600 A KR940004600 A KR 940004600A
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KR
South Korea
Prior art keywords
psk
data
recording
differential
signal
Prior art date
Application number
KR1019920015786A
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Korean (ko)
Inventor
박시훈
Original Assignee
윤종용
삼성전자 주식회사
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Publication date
Application filed by 윤종용, 삼성전자 주식회사 filed Critical 윤종용
Priority to KR1019920015786A priority Critical patent/KR940004600A/en
Priority to JP5215438A priority patent/JPH06208762A/en
Publication of KR940004600A publication Critical patent/KR940004600A/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

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Error Detection And Correction (AREA)

Abstract

디지탈 자기기록재생장치에 있어서, 고밀도기록을 위한 TCM-PSK 변조방식의 기록변복조장치가 개시된다.In a digital magnetic recording and reproducing apparatus, a recording modulation and demodulation apparatus of a TCM-PSK modulation method for high density recording is disclosed.

디지탈데이타를 차동화시키는 차동전처리기, 차동전처리된 데이타를 콘볼루션 부호화하는 콘볼루션 부호화기, 콘볼루션 부호화기로부터의 콘볼루션 부호화된 데이타를 PSK변조하는 PSK변조기, PSK변조기로부터의 PSK변조된 테이타를 상기 자기테이프에 적합한 자화신호로 형성하는 신호기록부, 자기테이프에 기록된 자화신호를 독취하여 상기 PSK변조된 데이타를 재생하는 신호재생부, 신호재생부로부터의 PSK변조된 데이타를 PSK 복조하여 TCM 변조된 테이타를 출력하는 PSK복조기, PSK복조기로부터의 콘볼루션 부호화된 데이타를 VITERBI복조하는 VITERBI복조기, VITERBI복조기로부터의 출력을 차동후처리하여 원래의 디지탈 데이타를 출력하는 차동후처리기를 구비한다.A differential preprocessor for differential digital data, a convolution encoder for convolutional encoding of differential preprocessed data, a PSK modulator for PSK modulation of convolutional coded data from a convolution encoder, and a PSK modulated data from a PSK modulator A signal recording unit for forming a magnetization signal suitable for a tape, a signal reproducing unit for reproducing the PSK modulated data by reading a magnetization signal recorded on a magnetic tape, and a PSK demodulated data for PSK modulated data from the signal reproducing unit for TCM modulated data. A PSK demodulator for outputting a signal, a VITERBI demodulator for VITERBI demodulation of convolution coded data from a PSK demodulator, and a differential postprocessor for differentially post-processing an output from a VITERBI demodulator and outputting original digital data.

Description

디자탈 자기테이프 기록재생장치의 기록변복조정장치Recording change adjusting device of digital magnetic tape recording and reproducing apparatus

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

제1도는 본 발명의 기록변복조장치의블럭도이다,1 is a block diagram of the recording and demodulation device according to the present invention.

제2도는 제1도에 의한 기록변복조장치의 기록계를 보이는 상세한 블럭도이다,FIG. 2 is a detailed block diagram showing the recording system of the recording and demodulation device according to FIG.

제3도는 제2도의 구성에 의한 8-PSK 변조신호의 위상도이다,3 is a phase diagram of an 8-PSK modulated signal according to the configuration of FIG.

제4도는 제1도에 의한 기록변복조장치의 재생계를 보이는 상세한 블럭도이다.4 is a detailed block diagram showing a reproduction system of the recording and demodulation device according to FIG.

Claims (3)

디지탈 데이타를 변조하여 테이프에 기록하거나 테이프에 기록된 디지탈 데이타를 독취하고 이로부터 원래의 디지탈 데이타를 복조하는 디지탈자기테이프 기록재생장치에 있어서, 상기 디지탈데이타를 콘볼루션 부호화하는 콘볼루션 부호화기(20)와; 상기 콘볼루션 부호화기(20)로부터의 콘볼루션 부호화된 데이타를 PSK변조하는 PSK변조기(30)와; 상기 PSK변조기로부터의 PSK변조된 데이타를 상기 자기테이프에 적합한 자화신호로 형성하는 신호기록부(40)와: 상기 자기테이프에 기록된 자화신호를 독취하여 상기 PSK변조된 데이타를 재생하는 신호재생부(50)와: 상기 신호재생부로부터의 PSK변조된 데이타를 PSK복조하여 TCM변조된 데이타를 출력하 는 PSK복조기(60)와; 상기 PSK복조기로부터 콘볼루션 부호화된 데이타를 VITERBI복조하여 원래의 디지탈 데이타를 출력하는 VITERBI복조기(70)를 구비하는 것을 특징으로 하는 기록변복조장치.A digital magnetic tape recording and reproducing apparatus which modulates digital data to record on a tape or reads digital data recorded on a tape, and demodulates original digital data therefrom, wherein the convolutional encoder 20 convolutionally encodes the digital data. Wow; A PSK modulator (30) for PSK modulating the convolution coded data from the convolutional encoder (20); A signal recording section 40 for forming the PSK modulated data from the PSK modulator into a magnetization signal suitable for the magnetic tape; a signal reproducing section for reading the magnetization signal recorded on the magnetic tape and reproducing the PSK modulated data. 50) and PSK demodulator 60 for PSK demodulating the PSK modulated data from the signal reproducing unit and outputting the TCM modulated data; And a VITERBI demodulator (70) for outputting original digital data by VITERBI demodulation of convolutionally coded data from said PSK demodulator. 제1항에 있어서, 상기 콘볼루션 부호화기 (20)는 웅거보크(Ungerboke)의 TCM(Trellis Coded Modulation) 변조방식에 의해 변조를 행하는 것을 특징으로 하는 디지탈 자기테이프 기록재생장치의 기록변조장치.2. The recording modulation apparatus of a digital magnetic tape recording and reproducing apparatus according to claim 1, wherein said convolutional encoder (20) modulates by Ungerboke's Trellis Coded Modulation (TCM) modulation method. 제1항에 있어서. 디지탈 데이타를 차동전처리하여 상기 콘볼루션 부호화기(20)에 공급하는 차동전처리기(10)와 상기 바이터비 복호화기(70)에서의 출력을 차동후처리하여 출력하는 차동후처리기(20)를 더 구비하는 것을 특징으로하는 디지탈 자기테이프 기륵재생장치의 기록변복조장치.The method of claim 1. It further includes a differential preprocessor 10 for differential preprocessing digital data and supplying the convolutional encoder 20 and a differential postprocessor 20 for differential post-processing and outputting the output from the bitterby decoder 70. And a recording / demodulation demodulation device for digital magnetic tape recording and reproducing apparatus. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019920015786A 1992-08-31 1992-08-31 Recording demodulation device for digital magnetic tape recording and playback device KR940004600A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
KR1019920015786A KR940004600A (en) 1992-08-31 1992-08-31 Recording demodulation device for digital magnetic tape recording and playback device
JP5215438A JPH06208762A (en) 1992-08-31 1993-08-31 Modulation and demodulation device of digital magnetic recording/playback apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019920015786A KR940004600A (en) 1992-08-31 1992-08-31 Recording demodulation device for digital magnetic tape recording and playback device

Publications (1)

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KR940004600A true KR940004600A (en) 1994-03-15

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KR1019920015786A KR940004600A (en) 1992-08-31 1992-08-31 Recording demodulation device for digital magnetic tape recording and playback device

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JP (1) JPH06208762A (en)
KR (1) KR940004600A (en)

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JPH06208762A (en) 1994-07-26

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