KR930010856A - Pickup signal correction device of digital magnetic recording and playback device - Google Patents

Pickup signal correction device of digital magnetic recording and playback device Download PDF

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Publication number
KR930010856A
KR930010856A KR1019910020051A KR910020051A KR930010856A KR 930010856 A KR930010856 A KR 930010856A KR 1019910020051 A KR1019910020051 A KR 1019910020051A KR 910020051 A KR910020051 A KR 910020051A KR 930010856 A KR930010856 A KR 930010856A
Authority
KR
South Korea
Prior art keywords
signal
level
pickup
envelope
magnetic recording
Prior art date
Application number
KR1019910020051A
Other languages
Korean (ko)
Other versions
KR940004480B1 (en
Inventor
윤종경
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.)
Filing date
Publication date
Application filed by 강진구, 삼성전자 주식회사 filed Critical 강진구
Priority to KR1019910020051A priority Critical patent/KR940004480B1/en
Priority to JP4287830A priority patent/JP2852165B2/en
Priority to US07/972,810 priority patent/US5436771A/en
Priority to EP92310326A priority patent/EP0542540B1/en
Priority to DE69228173T priority patent/DE69228173T2/en
Publication of KR930010856A publication Critical patent/KR930010856A/en
Application granted granted Critical
Publication of KR940004480B1 publication Critical patent/KR940004480B1/en

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Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/02—Recording, reproducing, or erasing methods; Read, write or erase circuits therefor

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  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Digital Magnetic Recording (AREA)

Abstract

내용 없음No content

Description

디지탈 자기기록 재생장치의 픽업신호 보정장치Pickup signal correction device of digital magnetic recording and playback device

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

제1도는 미분방식을 이용한 디지탈 자기기록 재생장치의 블럭도.1 is a block diagram of a digital magnetic recording and reproducing apparatus using a differential method.

제2a-g도는 제1도에 있어서의 각부의 파형을 보이는 도면.2A-G show waveforms of respective parts in FIG. 1;

제3a,b도는 9배속 재생시의 헤드궤적 및 RF ENVELOPE 파형을 보이는 도면.3A and 3B show a head trajectory and an RF ENVELOPE waveform at 9 times speed reproduction.

제4도는 본 발명의 일 실시예를 보이는 도면.4 is a view showing an embodiment of the present invention.

제5a-c도는 제4도에서의 각부의 파형을 보이는 도면.Figures 5a-c show the waveforms of the parts in Figure 4;

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

1, 21 : 테이프 2, 22 : 헤드1, 21 tape 2, 22 head

3, 23 : 증폭기 4, 24 : 등화기3, 23 amplifier 4, 24 equalizer

5, 25 : 저역여파기 6, 26 : 미분기5, 25: low filter 6, 26: differential

7, 27 : 제로크로스검출기 8, 28, 35 : 비교기7, 27: zero cross detector 8, 28, 35: comparator

9 : 제1기준입력단자 10, 30 : 논리합연산기9: first reference input terminal 10, 30: logical operator

11, 31 : 플립플롭 12, 32 : 출력단자11, 31: flip-flop 12, 32: output terminal

33 : ENVELOPE 검출기 34 : AGC33: ENVELOPE detector 34: AGC

36 : 제2기준입력단자 37 : 드롭아웃판정신호 출력단자36: second reference input terminal 37: dropout determination signal output terminal

Claims (4)

기록매체에 기록된 디지탈 정보를 전기신호로 변환하는 픽업수단과 상기 픽업수단에서의 픽업된 신호를 레벨변환하는 수단과 ; 상기의 레벨변환된 신호에서 원래의 정보를 재생하는 데이타복원 수단을 구비하는 디지탈 자기기록 재생장치에 있어서, 픽업된 신호의 RF ENVELOPE의 레벨을 검출하는 수단과 ; 상기 ENVELOPE 레벨 을 제어하는 수단을 더 구비하는 것을 특징으로 하는 디지탈 자기기록 재생장치의 픽업신호 보정장치.Pickup means for converting digital information recorded on the recording medium into an electrical signal, and means for level converting the signal picked up by the pickup means; A digital magnetic recording and reproducing apparatus comprising data restoring means for reproducing original information from said level-converted signal, comprising: means for detecting the level of RF ENVELOPE of the picked-up signal; And a means for controlling the level of the ENVELOPE. 제1항에 있어서, 상기 ENVELOPE 레벨 제어수단은 인에이블 단자를 더 구비하는 것을 특징으로 하는 디지탈 자기기록 재생장치의 픽업신호 보정장치.2. The pickup signal correcting apparatus of claim 1, wherein the ENVELOPE level control means further comprises an enable terminal. 제2항에 있어서, 상기 ENVELOPE 레벨에서의 출력과 드롭아웃판정을 위한 기준신호를 비교하는 수단을더 구비하는 것을 특징으로 하는 디지탈 자기기록 재생장치의 픽업신호 보정장치.3. The pickup signal correction apparatus of claim 2, further comprising means for comparing the output signal at the ENVELOPE level with a reference signal for dropout determination. 제1항에 있어서, 상기 ENVELOPE 레벨 검출수단에서의 출력과 드롭아웃 판정을 위한 기준신호를 비교하는 수단을 더 구비하는 것을 특징으로 하는 디지탈 자기기록 재생장치의 픽업신호 보정장치.2. The pickup signal correcting apparatus according to claim 1, further comprising means for comparing an output from said ENVELOPE level detection means with a reference signal for dropout determination. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019910020051A 1991-11-12 1991-11-12 Pick-up correction device for digital recording apparatus KR940004480B1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
KR1019910020051A KR940004480B1 (en) 1991-11-12 1991-11-12 Pick-up correction device for digital recording apparatus
JP4287830A JP2852165B2 (en) 1991-11-12 1992-10-26 Pickup signal correction device for digital magnetic recording / reproducing device
US07/972,810 US5436771A (en) 1991-11-12 1992-11-06 Apparatus for correcting a pick-up signal of a digital magnetic recording and reproducing apparatus
EP92310326A EP0542540B1 (en) 1991-11-12 1992-11-12 Playback equalising circuit for a digital magnetic reproducing apparatus
DE69228173T DE69228173T2 (en) 1991-11-12 1992-11-12 Equalizer circuit on the playback side of a digital magnetic playback device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019910020051A KR940004480B1 (en) 1991-11-12 1991-11-12 Pick-up correction device for digital recording apparatus

Publications (2)

Publication Number Publication Date
KR930010856A true KR930010856A (en) 1993-06-23
KR940004480B1 KR940004480B1 (en) 1994-05-25

Family

ID=19322664

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019910020051A KR940004480B1 (en) 1991-11-12 1991-11-12 Pick-up correction device for digital recording apparatus

Country Status (1)

Country Link
KR (1) KR940004480B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100755028B1 (en) * 2005-11-14 2007-09-06 주식회사리젠코리아 Electro-penetrative typed device for dehydrating sludge

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100755028B1 (en) * 2005-11-14 2007-09-06 주식회사리젠코리아 Electro-penetrative typed device for dehydrating sludge

Also Published As

Publication number Publication date
KR940004480B1 (en) 1994-05-25

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