KR910003582A - 트래킹 오차검출장치 - Google Patents

트래킹 오차검출장치 Download PDF

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Publication number
KR910003582A
KR910003582A KR1019900011051A KR900011051A KR910003582A KR 910003582 A KR910003582 A KR 910003582A KR 1019900011051 A KR1019900011051 A KR 1019900011051A KR 900011051 A KR900011051 A KR 900011051A KR 910003582 A KR910003582 A KR 910003582A
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KR
South Korea
Prior art keywords
circuit
tracking error
error detection
digital
detection device
Prior art date
Application number
KR1019900011051A
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English (en)
Other versions
KR930011691B1 (ko
Inventor
마사후미 시모다시로
테쯔야 미즈시마
히로시 오카모토
소이치로 후지오카
Original Assignee
다니이 아끼오
마쯔시다덴기산교 가부시기가이샤
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
Priority claimed from JP1189702A external-priority patent/JPH0354715A/ja
Priority claimed from JP1243784A external-priority patent/JPH03105756A/ja
Application filed by 다니이 아끼오, 마쯔시다덴기산교 가부시기가이샤 filed Critical 다니이 아끼오
Publication of KR910003582A publication Critical patent/KR910003582A/ko
Application granted granted Critical
Publication of KR930011691B1 publication Critical patent/KR930011691B1/ko

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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
    • G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
    • G11B5/58—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B5/584—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for track following on tapes
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
    • G11B15/18—Driving; Starting; Stopping; Arrangements for control or regulation thereof
    • G11B15/46—Controlling, regulating, or indicating speed
    • G11B15/467—Controlling, regulating, or indicating speed in arrangements for recording or reproducing wherein both record carriers and heads are driven
    • 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
    • G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
    • G11B5/58—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B5/584—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for track following on tapes
    • G11B5/588—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for track following on tapes by controlling the position of the rotating heads
    • 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
    • G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
    • G11B5/58—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B5/596—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for track following on disks
    • G11B5/59605—Circuits
    • 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
    • G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
    • G11B5/488—Disposition of heads
    • G11B5/4893—Disposition of heads relative to moving tape

Landscapes

  • Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)

Abstract

내용 없음.

Description

트래킹 오차검출장치
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명의 제1구성의 일실시예의 디지틀 자기녹화장치를 위한 트래킹오차 검출장치의 요부블록도,
제2도는 본 발명의 자기테이프상의 기록패턴도,
제3도는 본 발명의 PLL회로의 구성을 도시한 요부블록도.

Claims (9)

  1. 디지틀신호를 기록재생하는 디지틀자기기록 장치의 트래킹 오차검출 장치로서, 동일 베이스상의 N개(N은 1이상의 정수)의 방위각을 가진 멀티자기헤드와, 상기 자기헤드로부터 출력된 디지틀신호로부터 재생클록을 발생하는 PLL회로와, 상기 PLL회로로부터 출력된 재생클록으로부터 트래킹오차를 검출하는 회로를 구비한 것을 특징으로 하는 트래킹 오차검출장치.
  2. 디지틀신호를 기록재생하는 디지틀자기기록장치의 트래킹 오차검출장치로서 동일베이스상의 서로 반대방위각을 가진 멀티구성된 2개의 멀티자기헤드와, 상기 2개의 멀티자기헤드로 부터 출력된 2채널의 디지틀신호로부터 재생 클록을 발생하는 2개의 PLL회로와, 상기 2개의 PLL회로로부터 출력된 2개의 재생클록의 위상을 비교하는 위상비교회로를 구비한 것을 특징으로 하는 트래킹 오차검출장치.
  3. 디지틀신호를 기록재생하는 디지틀 자기기록장치의 트래킹 오차검출 장치로서, 서로 반대방위각을 가진 멀티구성된 2개의 멀티자기헤드와, 상기 2개의 멀티자기헤드로 부터 출력된 2채널의 디지틀신호로부터 재생클록을 발생하는 2개의 PLL회로와, 상기 2개의 PLL회로로부터 출력된 2개의 재생클록을 분주하는 2개의 분주회로와, 2개의 분주회로로 부터 출력된 출력신호의 위상을 비교하는 위상비교회로를 구비한 것을 특징으로 하는 트래킹 오차검출장치.
  4. 제3항에 있어서, 2개의 멀티자기헤드에 의해 2개의 디지틀신호를 기록하고, 또한 2개의 디지틀신호는 각각 시간축기준을 표시하는 동기패턴을 가지고, 2개의 멀티자기헤드로부터 기록되는 제1채널과 제2채널에서 일정한 위상관계가 되도록 동기패턴을 부가하여 기록하는 디지틀자기 기록장치의 트래킹오차 검출장치로서, 2개의 멀티 자기헤드의 재생동기패턴의 시간축 위치에 따라서 2개의 출력신호의 위상을 각각 결정하도록 구성한 것을 특징으로 하는 트래킹 오차검출장치.
  5. 디지틀신호를 기록재생하는 디지틀 자기녹화장치의 트래킹오차검출장치로서, 방위각을 가진 자기헤드와, 상기 자기헤드에서 기록재생된 디지틀신호로부터 재생클록을 발생하는 PLL회로와, 상기 재생클록을 분주하는 분주회로와, 상기 분주회로로 부터의 출력신호의 주기를 계측하는 주기계측회로를 구비한 것을 특징으로 하는 트래킹오차검출장치.
  6. 제5항에 있어서, 상기 주기계측회로로서 카운터와, 상기 카운터를 동작시키기 위한 프리이 발진의 클록을 발생하는 클록발생회로를 구비한 것을 특징으로 하는 트래킹 오차검출장치.
  7. 제5항에 있어서, 상기 주기계측회로에 의해 계측한 주기와, 정상적인 트래킹시의 주기와의 차를 누게하는 적분회로를 구비한 것을 특징으로 하는 트래킹 오차검출장치.
  8. 디지틀신호틀 기록재생하는 디지틀자기녹화장치의 트래킹오차검출장치로서, 동일 베이스상의 서로 반대의 방위각을 가진 멀티 구성된 자기헤드(1)와 자기헤드(2)와, 상기 멀티자기헤드의 한쪽의 자기헤드(1)에서 기록 재생된 디지틀영상신호로 부터 재생클록을 발생하는 PLL회로와, 상기 재생클록을 분주하는 분주회로와, 상기 분주회로로 부터의 출력신호의 주기를 계측하는 주기계측회로를 구비한 것을 특징으로 하는 트래킹오차 검출장치.
  9. 제8항에 있어서, 상기 주기계측회로로서 카운터와, 상기 자기헤드(1)과는 별도의 자기 헤드(2)에서 기록재생된 디지틀신호로 부터 재생클록을 발생하는 PLL회로와, 상기 재생클록을 체배하고, 카운터용 클록을 발생하는 체배회로를 구비한 것을 특징으로 하는 트래킹 오차검출장치.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019900011051A 1989-07-21 1990-07-20 트래킹 오차 검출장치 KR930011691B1 (ko)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP189702 1989-07-21
JP1189702A JPH0354715A (ja) 1989-07-21 1989-07-21 トラッキング誤差検出装置及びディジタル磁気録画装置
JP1-189702 1989-07-21
JP243784 1989-09-20
JP1243784A JPH03105756A (ja) 1989-09-20 1989-09-20 トラッキング誤差検出装置
JP1-243784 1989-09-20

Publications (2)

Publication Number Publication Date
KR910003582A true KR910003582A (ko) 1991-02-27
KR930011691B1 KR930011691B1 (ko) 1993-12-18

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019900011051A KR930011691B1 (ko) 1989-07-21 1990-07-20 트래킹 오차 검출장치

Country Status (4)

Country Link
US (1) US5313346A (ko)
EP (1) EP0409548B1 (ko)
KR (1) KR930011691B1 (ko)
DE (1) DE69020057T2 (ko)

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US5212603A (en) * 1988-08-26 1993-05-18 Canon Kabushiki Kaisha Tracking control means for a multi-channel reproducing apparatus
US5289323A (en) * 1992-02-14 1994-02-22 Datatape Incorporated Autotracking for a helical scan magnetic tape recorder
TW241361B (ko) * 1993-05-07 1995-02-21 Philips Electronics Nv
US5751890A (en) * 1994-11-11 1998-05-12 Mitsubishi Denki Kabushiki Kaisha Magnetic type recording and reproducing apparatus
JPH08147611A (ja) * 1994-11-25 1996-06-07 Hitachi Ltd 磁気記録再生方法および磁気記録再生装置
US5757575A (en) * 1996-10-31 1998-05-26 Ampex Corporation Track-curvature detection using clock phase shift in azimuth recording
JPH10215175A (ja) * 1996-11-29 1998-08-11 Sony Corp Ｐｌｌ回路及び信号再生装置
US20050068864A1 (en) * 1999-07-08 2005-03-31 Samsung Electronics Co., Ltd. Method and apparatus for tracking error detection in optical disk driver
US6697209B2 (en) 2000-11-09 2004-02-24 Exabyte Corporation Phase based time domain tracking for helical scan tape drive
US6778361B2 (en) 2000-12-07 2004-08-17 Exabyte Corporation Non-symmetric helical scanner architecture for high track density
US7106535B2 (en) * 2001-09-12 2006-09-12 Exabyte Corporation Method and apparatus for maintaining consistent track pitch in helical scan recorder
US6985323B2 (en) * 2001-09-12 2006-01-10 Exabyte Corporation Alternating-azimuth angle helical track format using grouped same-azimuth angle heads
US20040153894A1 (en) * 2003-01-21 2004-08-05 Zarlink Semiconductor Inc. Method of measuring the accuracy of a clock signal
DE102004038275A1 (de) * 2004-08-06 2006-03-16 Dr. Johannes Heidenhain Gmbh Verfahren zur sicheren Positionsüberwachung
US8041310B2 (en) * 2007-10-01 2011-10-18 Telefonaktiebolaget Lm Ericsson (Publ) Apparatus and methods for frequency control in a multi-output frequency synthesizer

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AT346089B (de) * 1976-07-30 1978-10-25 Philips Nv Wiedergabegeraet
US4209810A (en) * 1977-06-16 1980-06-24 Burroughs Corporation Di-gap, variable-frequency recording technique and associated system
JPS56159858A (en) * 1980-05-10 1981-12-09 Sony Corp Tracking control unit in magnetic recording and reproducing device
JPS5930216A (ja) * 1982-08-14 1984-02-17 Victor Co Of Japan Ltd デジタル信号の磁気記録再生装置
DE3435649A1 (de) * 1984-09-28 1986-04-10 Deutsche Thomson-Brandt Gmbh, 7730 Villingen-Schwenningen Spurnachgesteuertes magnetbandgeraet mit querspuraufzeichnung
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JP2584006B2 (ja) * 1988-10-17 1997-02-19 株式会社日立製作所 磁気記録再生装置

Also Published As

Publication number Publication date
DE69020057D1 (de) 1995-07-20
EP0409548B1 (en) 1995-06-14
DE69020057T2 (de) 1996-02-01
US5313346A (en) 1994-05-17
KR930011691B1 (ko) 1993-12-18
EP0409548A3 (en) 1992-12-09
EP0409548A2 (en) 1991-01-23

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