KR940020318A - 디스크 구동 장치 - Google Patents
디스크 구동 장치 Download PDFInfo
- Publication number
- KR940020318A KR940020318A KR1019940002397A KR19940002397A KR940020318A KR 940020318 A KR940020318 A KR 940020318A KR 1019940002397 A KR1019940002397 A KR 1019940002397A KR 19940002397 A KR19940002397 A KR 19940002397A KR 940020318 A KR940020318 A KR 940020318A
- Authority
- KR
- South Korea
- Prior art keywords
- phase difference
- signal
- servo pattern
- detecting
- disc
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
-
- 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
- G11B20/10—Digital recording or reproducing
- G11B20/10009—Improvement or modification of read or write signals
- G11B20/10037—A/D conversion, D/A conversion, sampling, slicing and digital quantisation or adjusting parameters thereof
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
- G11B11/10—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
- G11B11/105—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing
- G11B11/10502—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing characterised by the transducing operation to be executed
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
- G11B11/10—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
- G11B11/105—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing
- G11B11/10595—Control of operating function
-
- 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
- G11B20/10—Digital recording or reproducing
- G11B20/14—Digital recording or reproducing using self-clocking codes
- G11B20/1403—Digital recording or reproducing using self-clocking codes characterised by the use of two levels
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
- G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
- G11B27/19—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
- G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
- G11B27/19—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier
- G11B27/28—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording
- G11B27/30—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on the same track as the main recording
- G11B27/3027—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on the same track as the main recording used signal is digitally coded
-
- 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
- G11B20/10—Digital recording or reproducing
- G11B20/12—Formatting, e.g. arrangement of data block or words on the record carriers
- G11B20/1217—Formatting, e.g. arrangement of data block or words on the record carriers on discs
- G11B20/1258—Formatting, e.g. arrangement of data block or words on the record carriers on discs where blocks are arranged within multiple radial zones, e.g. Zone Bit Recording or Constant Density Recording discs, MCAV discs, MCLV discs
-
- 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
- G11B20/10—Digital recording or reproducing
- G11B20/12—Formatting, e.g. arrangement of data block or words on the record carriers
- G11B2020/1264—Formatting, e.g. arrangement of data block or words on the record carriers wherein the formatting concerns a specific kind of data
- G11B2020/1265—Control data, system data or management information, i.e. data used to access or process user data
- G11B2020/1281—Servo information
- G11B2020/1282—Servo information in embedded servo fields
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B2220/00—Record carriers by type
- G11B2220/20—Disc-shaped record carriers
- G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
- G11B2220/2525—Magneto-optical [MO] discs
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
- Optical Recording Or Reproduction (AREA)
Abstract
본 발명은 소정의 서보 패턴이 소정의 간격으로 미리 기록되는 광 디스크, 광 자기디스크 등의 원반형 기록 매체로부터 각각 서보 패턴을 검출하여, 그 검출 정보에 기초하여 채널 클럭을 형성하는 원반형 기록 매체의 기록 재생 장치이다.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제5도는 본 발명의 광 디스크 장치의 실시예를 도시하는 블록도, 제6도는 본 실시예의 채널 클럭 형성의 동작을 설명하기 위한 타임챠트. 제7도는 본 실시예의 광 디스크 장치의 록 범위를 도시하는 도면.
Claims (3)
- 소정의 간격으로 미리 결정된 서보 패턴이 기록된 샘플 포맷의 디스크형 기록 매체를 구동하는 디스크 구동 장치에 있어서, 상기한 서보 패턴을 재생하고 아날로그 재생 신호를 출력하는 판독 수단과, 채널 클럭 신호에 응답하여 상기 아날로그 재생 신호를 디지트화하는 아날로그-디지탈 변환 수단과, 상기 디지털 재생 신호를 형성하는 다수의 디지털 데이터에 기초하여 미리 결정된 처리에 의해 제1위상차 신호를 발생하는 제1위상차 발생 수단과, 상기 복수의 디지털 데이터에 의한 패턴과 상기한 서보 패턴과의 일치를 검출하는 서보 패턴 검출 수단과, 상기 서보 패턴 검출 수단에 의해 상기한 복수의 디지털 데이터에 의한 패턴과 상기한 서보 패턴과의 일치가 검출되어서부터 다시 상기한 복수의 디지털 데이터에 의한 패턴과 상기한 서보 패턴이 일치할 때까지의 시간을 검출하는 재서보 패턴 검출 수단과, 소정의 위상차를 표시하는 제2의 위상차 신호를 생성하는 제2의 위상차 생성 수단과, 상기 제1의 위상차 신호와 상기한 제2의 위상차 신호를 선택적으로 출력하는 선택 수단과, 상기 재서보 패턴 검출 수단에서 검출된 시간이 소정의 범위내인 때에 상기 제1의 위상차 신호를 출력하도록 상기 선택 수단을 제어하고 상기 시간이 소정의 범위밖인 때에 상기 제2의 위상차 신호를 출력하도록 상기 선택 수단을 제어하는 제어수단과, 상기 선택 수단에서 공급되는 상기 제1 또는 제2의 위상 오차 신호에 대응해서 위상이 보정되어 상기 채널 클럭 신호를 생성하는 채널 클럭 생성 수단을 포함하는 것을 특징으로 하는 디스크 구동 장치.
- 제1항에 있어서, 상기한 제2의 위상차 생성 수단은 정의 위상차를 나타내는 정의 위상차 신호를 출력하는 정위상차 생성기와 부의 위상차를 나타내는 부의 위상차 신호를 출력하는 부위상차 생성기로 구성이 되는 것을 특징으로 하는 디스크 구동 장치.
- 제1항에 있어서, 상기한 재생 수단이 재생하고 있는 상기한 디스크형 기록 매체의 반경 방향의 위치를 검출하는 위치 검출 수단과, 상기한 위치 검출 수단의 검출 결고에 의해서 상기한 제1의 위상차 신호를 다른 이득으로 증폭하는 이득 보정 수단을 또한 포함하며, 상기 이득 보정 수단은 상기한 재생 수단이 재생되어 있는 위치가 상기한 디스크형 기록 매체의 반경 방향의 위치에 의해 상기 이득을 전환하는 것을 특징으로 하는 디스크 구동 장치.※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2454293A JPH06236628A (ja) | 1993-02-12 | 1993-02-12 | 円盤状記録媒体のチャンネルクロック形成装置及び円盤状記録媒体の再生装置及び円盤状記録媒体の記録再生装置 |
JP93-24542 | 1993-02-12 | ||
JP3097693A JPH06243586A (ja) | 1993-02-19 | 1993-02-19 | 円盤状記録媒体のチャンネルクロック形成装置及び円盤状記録媒体の再生装置及び円盤状記録媒体の記録再生装置 |
JP93-30976 | 1993-02-19 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR940020318A true KR940020318A (ko) | 1994-09-15 |
KR100287493B1 KR100287493B1 (ko) | 2001-04-16 |
Family
ID=26362085
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019940002397A KR100287493B1 (ko) | 1993-02-12 | 1994-02-08 | 디스크구동장치 |
Country Status (3)
Country | Link |
---|---|
US (1) | US5436770A (ko) |
EP (1) | EP0611155B1 (ko) |
KR (1) | KR100287493B1 (ko) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100238262B1 (ko) * | 1994-12-31 | 2000-01-15 | 윤종용 | 광디스크시스템에 있어서 디지탈 서보 제어회로 |
Families Citing this family (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3240762B2 (ja) * | 1993-07-26 | 2001-12-25 | ソニー株式会社 | 光記録媒体の再生方法及び再生装置 |
JPH0745002A (ja) * | 1993-07-27 | 1995-02-14 | Sony Corp | 再生装置及び記録再生装置 |
US5654948A (en) * | 1993-09-07 | 1997-08-05 | Sony Corporation | Disc apparatus for recording/reproducing with zone constant angular velocity |
US5602690A (en) * | 1994-01-20 | 1997-02-11 | Sony Corporation | Clock signal generating device and clock signal generating method |
JPH07264057A (ja) * | 1994-03-18 | 1995-10-13 | Hitachi Ltd | 位相同期回路および記録再生装置 |
US5761172A (en) * | 1994-03-25 | 1998-06-02 | Hitachi, Ltd. | Method of optical reproduction using pulsed light |
KR960706167A (ko) | 1994-08-25 | 1996-11-08 | 이데이 노부유키 | 광디스크 및 광디스크 구동 장치(Optical disc and optical disc driving device) |
WO1996006432A1 (fr) * | 1994-08-25 | 1996-02-29 | Sony Corporation | Disque optique |
EP0806040A1 (en) * | 1994-12-09 | 1997-11-12 | Seagate Technology, Inc. | Apparatus and method for controlling the frequency at which data is written in a disk drive system |
WO1996030907A1 (fr) * | 1995-03-30 | 1996-10-03 | Yoshikatsu Niwa | Dispositif et procede destines a commander un support d'enregistrement du type disque et support d'enregistrement du type disque |
JPH08315515A (ja) * | 1995-05-18 | 1996-11-29 | Sony Corp | データ記録/再生装置および方法、並びにデータ記録媒体 |
JPH09237421A (ja) * | 1996-03-01 | 1997-09-09 | Sony Corp | 記録再生装置および方法 |
WO1997033281A1 (fr) * | 1996-03-08 | 1997-09-12 | Sony Corporation | Dispositif d'actionnement de disque et procede d'enregistrement et de reproduction |
JP3867335B2 (ja) * | 1996-05-10 | 2007-01-10 | ソニー株式会社 | 記録媒体、インストール動作管理方法 |
US5809006A (en) * | 1996-05-31 | 1998-09-15 | Cagent Technologies, Inc. | Optical disk with copy protection, and apparatus and method for recording and reproducing same |
KR100208380B1 (ko) * | 1996-10-09 | 1999-07-15 | 윤종용 | 하드디스크드라이브에서 그레이코드 디코딩 보상회로 및 그 보상방법 |
JP3481422B2 (ja) | 1997-05-23 | 2003-12-22 | シャープ株式会社 | ディジタル記録再生装置 |
US6084738A (en) * | 1997-08-15 | 2000-07-04 | Seagate Technology, Inc. | Writing servo information to a disc drive at a constant density |
JPH11126186A (ja) | 1997-10-22 | 1999-05-11 | Sony Corp | コンピュータシステム、及び記録媒体 |
JP3906535B2 (ja) | 1997-11-07 | 2007-04-18 | ソニー株式会社 | ダウンロードシステム、及び記録媒体 |
JP4081858B2 (ja) | 1998-06-04 | 2008-04-30 | ソニー株式会社 | コンピュータシステム、コンピュータ端末装置、及び記録媒体 |
JP3968875B2 (ja) | 1998-06-24 | 2007-08-29 | ソニー株式会社 | ダウンロード装置、及び記録媒体 |
JP2004158121A (ja) * | 2002-11-06 | 2004-06-03 | Hitachi Global Storage Technologies Netherlands Bv | データ記憶装置、その補正機構及びデータ読み出し制御方法 |
US8503125B2 (en) * | 2011-05-27 | 2013-08-06 | HGST Netherlands B.V. | Channel-source laser-pulsing system architecture for thermal-assisted recording |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0721943B2 (ja) * | 1984-06-30 | 1995-03-08 | 株式会社東芝 | デ−タ復調方式 |
GB2187366B (en) * | 1986-02-27 | 1989-11-08 | Sony Corp | Synchronizing signal decoding |
JP2669532B2 (ja) * | 1988-05-20 | 1997-10-29 | 株式会社日立製作所 | 光ディスク装置 |
JP2668991B2 (ja) * | 1988-10-06 | 1997-10-27 | ソニー株式会社 | サーボ回路 |
JP2795479B2 (ja) * | 1989-09-07 | 1998-09-10 | 株式会社日立製作所 | 記録データ再生装置およびウィンド形成回路 |
JP2821629B2 (ja) * | 1989-11-15 | 1998-11-05 | ソニー株式会社 | 光ディスクのクロック検出方法 |
JP2998161B2 (ja) * | 1990-01-17 | 2000-01-11 | 富士通株式会社 | 記録媒体の同期信号読取方法及び装置 |
DE69231731T2 (de) * | 1991-06-17 | 2001-06-28 | Sony Corp., Tokio/Tokyo | Plattenaufzeichnungsverfahren |
-
1994
- 1994-02-08 KR KR1019940002397A patent/KR100287493B1/ko not_active IP Right Cessation
- 1994-02-10 EP EP94300969A patent/EP0611155B1/en not_active Expired - Lifetime
- 1994-02-10 US US08/195,855 patent/US5436770A/en not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100238262B1 (ko) * | 1994-12-31 | 2000-01-15 | 윤종용 | 광디스크시스템에 있어서 디지탈 서보 제어회로 |
Also Published As
Publication number | Publication date |
---|---|
US5436770A (en) | 1995-07-25 |
KR100287493B1 (ko) | 2001-04-16 |
EP0611155A3 (en) | 1995-04-19 |
EP0611155B1 (en) | 1999-05-12 |
EP0611155A2 (en) | 1994-08-17 |
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