KR880010392A - 디스크 장치 - Google Patents
디스크 장치 Download PDFInfo
- Publication number
- KR880010392A KR880010392A KR1019880000917A KR880000917A KR880010392A KR 880010392 A KR880010392 A KR 880010392A KR 1019880000917 A KR1019880000917 A KR 1019880000917A KR 880000917 A KR880000917 A KR 880000917A KR 880010392 A KR880010392 A KR 880010392A
- Authority
- KR
- South Korea
- Prior art keywords
- timer circuit
- detection pulse
- head means
- traverse
- traverse detection
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B21/00—Head arrangements not specific to the method of recording or reproducing
- G11B21/02—Driving or moving of heads
- G11B21/08—Track changing or selecting during transducing operation
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B21/00—Head arrangements not specific to the method of recording or reproducing
- G11B21/02—Driving or moving of heads
- G11B21/08—Track changing or selecting during transducing operation
- G11B21/081—Access to indexed tracks or parts of continuous track
- G11B21/083—Access to indexed tracks or parts of continuous track on discs
-
- 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
- G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
- G11B7/085—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam into, or out of, its operative position or across tracks, otherwise than during the transducing operation, e.g. for adjustment or preliminary positioning or track change or selection
- G11B7/08505—Methods for track change, selection or preliminary positioning by moving the head
- G11B7/08541—Methods for track change, selection or preliminary positioning by moving the head involving track counting to determine position
Landscapes
- Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
- Moving Of Head For Track Selection And Changing (AREA)
- Selective Calling Equipment (AREA)
- Vehicle Body Suspensions (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
Abstract
내용 없음
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명에 의한 디스크 장치의 일실시예를 도시하는 개략계통도,
제2도는 제1도의 트래버스 검출회로(5)의 상세한 구성을 도시하는 블록도,
제3도는 고속용 트래버스 검출회로의 동작 설명에 제공하는 신호 파형도.
Claims (1)
- 헤드수단이 디시크위의 기록 트랙을 트래버스할 때에, 상기 헤드수단의 출력신호에 의거하여 트래버스 검출 펄스신를 형성하여, 이 트래버스 검출 펄스신호의 펄스수를 카운트하므로서 트래버스 트랙수를 검출하도록 된 디스크 장치에 있어서, 상기 헤드수단의 출력 신호에 포함되는 데이터 신호 성분에 의거하여 트리거되는 타이머 회로를 가지고, 상기 타이머 회로의 설정시간을, 상기 데이터 신호 성분의 주기 가운데 가장 긴 주기 보다 약간 긴 값으로 설정하여, 상기 타이머 회로의 출력을 상기 트래버스 검출 펄스신호로서 얻어지는 것을 특징으로 하는 디스크 장치.※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP23165 | 1987-02-02 | ||
JP62023165A JP2508477B2 (ja) | 1987-02-02 | 1987-02-02 | デイスク装置 |
JP23465 | 1987-02-02 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR880010392A true KR880010392A (ko) | 1988-10-08 |
KR0131767B1 KR0131767B1 (ko) | 1998-04-18 |
Family
ID=12103005
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019880000917A KR0131767B1 (ko) | 1987-02-02 | 1988-02-02 | 디스크장치와 액세스 제어 장치 |
Country Status (6)
Country | Link |
---|---|
US (1) | US4868819A (ko) |
EP (1) | EP0277793B1 (ko) |
JP (1) | JP2508477B2 (ko) |
KR (1) | KR0131767B1 (ko) |
AT (1) | ATE95333T1 (ko) |
DE (1) | DE3884416T2 (ko) |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS648563A (en) * | 1987-06-30 | 1989-01-12 | Toshiba Corp | Track counter |
JP2689545B2 (ja) * | 1988-12-08 | 1997-12-10 | ソニー株式会社 | アクセス速度検出装置 |
US5243586A (en) * | 1989-04-07 | 1993-09-07 | Nikon Corporation | Apparatus for retrieving a track on a recording medium by a light beam |
NL9000131A (nl) * | 1990-01-19 | 1991-08-16 | Philips Nv | Lees- en/of schrijfinrichting. |
JPH03235367A (ja) * | 1990-02-13 | 1991-10-21 | Mitsubishi Electric Corp | 半導体集積回路装置 |
JP2594374B2 (ja) * | 1990-05-29 | 1997-03-26 | 松下電送株式会社 | トラックカウント方法 |
JPH0778884B2 (ja) * | 1990-09-27 | 1995-08-23 | インターナシヨナル・ビジネス・マシーンズ・コーポレーシヨン | 光学ディスク駆動装置及び光学ディスクのトラック数のカウント方法 |
JP2710704B2 (ja) * | 1991-07-08 | 1998-02-10 | シャープ株式会社 | 光記録媒体駆動装置 |
JP2633417B2 (ja) * | 1991-08-02 | 1997-07-23 | シャープ株式会社 | 光記録媒体駆動装置 |
JPH05205416A (ja) * | 1991-10-18 | 1993-08-13 | Internatl Business Mach Corp <Ibm> | 媒体欠陥によるトラッキング・エラー信号異常のマスキング装置および方法 |
EP0760509B1 (en) * | 1995-03-17 | 2002-05-29 | Sony Corporation | Disk apparatus and disk access method |
US6806088B2 (en) * | 2001-04-09 | 2004-10-19 | Matsushita Electric Industrial Co., Ltd. | Method and apparatus for improving the performance of microanalytic and microsynthetic procedures |
TWI277951B (en) * | 2001-06-15 | 2007-04-01 | Lite On It Corp | Method of dynamically adjusting the rotational speed for disk drive according to the amount of data transmission |
TWI244073B (en) * | 2001-06-28 | 2005-11-21 | Via Tech Inc | Bandwidth control circuit for track-crossing signal of CD-ROM driver and related method |
US7403459B2 (en) * | 2002-01-22 | 2008-07-22 | Lite-On It Corp. | Rotational speed control method for a disk player |
JP2005317112A (ja) * | 2004-04-28 | 2005-11-10 | Sony Corp | 光ディスク装置 |
TWI259443B (en) | 2005-03-11 | 2006-08-01 | Lite On It Corp | Dynamic speed control method for storage device |
JP4576316B2 (ja) | 2005-10-20 | 2010-11-04 | 株式会社日立製作所 | サーボ制御信号生成装置、光ディスク装置及びサーボ制御信号生成方法 |
JP2010192105A (ja) * | 2010-04-19 | 2010-09-02 | Hitachi Ltd | サーボ制御信号生成装置、光ディスク装置及びサーボ制御信号生成方法 |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4096534A (en) * | 1977-04-12 | 1978-06-20 | International Business Machines Corporation | Track accessing circuitry for a disk file with switchable filter |
JPS57189217A (en) * | 1981-05-18 | 1982-11-20 | Nec Corp | Positioning controller |
US4464689A (en) * | 1981-06-04 | 1984-08-07 | Education & Informations Systems, Inc. | Random access read/write unit |
KR880000999B1 (ko) * | 1981-11-25 | 1988-06-10 | 미쓰다 가쓰시게 | 광학적 정보 기억장치 |
US4774699A (en) * | 1981-12-21 | 1988-09-27 | Discovision Associates | Method and apparatus for positioning a read head to a selected track on a record disc |
US4479194A (en) * | 1982-08-10 | 1984-10-23 | Computer Election Systems | System and method for reading marks on a document |
JPS59231777A (ja) * | 1983-06-13 | 1984-12-26 | Matsushita Electric Ind Co Ltd | トラツク間検出装置 |
JPH0766636B2 (ja) * | 1983-12-02 | 1995-07-19 | 松下電器産業株式会社 | 情報トラツクの検索装置 |
JP2724996B2 (ja) * | 1983-12-20 | 1998-03-09 | パイオニア株式会社 | 相対位置検出装置 |
NL8402095A (nl) * | 1984-07-02 | 1986-02-03 | Philips Nv | Inrichting voor het weergeven van informatie van een registratiedrager. |
JPH0760564B2 (ja) * | 1985-12-20 | 1995-06-28 | ソニー株式会社 | デイスク再生装置 |
JPS62271270A (ja) * | 1986-05-20 | 1987-11-25 | Fujitsu Ltd | ヘツドアクセス制御装置 |
US4677507A (en) * | 1986-05-30 | 1987-06-30 | Magnetic Peripherals Inc. | Digital velocity control for a disk drive servo system |
-
1987
- 1987-02-02 JP JP62023165A patent/JP2508477B2/ja not_active Expired - Lifetime
-
1988
- 1988-01-28 US US07/149,513 patent/US4868819A/en not_active Expired - Lifetime
- 1988-02-01 DE DE88300826T patent/DE3884416T2/de not_active Expired - Lifetime
- 1988-02-01 EP EP88300826A patent/EP0277793B1/en not_active Expired - Lifetime
- 1988-02-01 AT AT88300826T patent/ATE95333T1/de not_active IP Right Cessation
- 1988-02-02 KR KR1019880000917A patent/KR0131767B1/ko not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
DE3884416D1 (de) | 1993-11-04 |
EP0277793A3 (en) | 1990-08-29 |
US4868819A (en) | 1989-09-19 |
JP2508477B2 (ja) | 1996-06-19 |
KR0131767B1 (ko) | 1998-04-18 |
ATE95333T1 (de) | 1993-10-15 |
DE3884416T2 (de) | 1994-02-03 |
EP0277793A2 (en) | 1988-08-10 |
EP0277793B1 (en) | 1993-09-29 |
JPS63191380A (ja) | 1988-08-08 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
KR880010392A (ko) | 디스크 장치 | |
KR830007000A (ko) | 디지탈신호 처리장치의 파형 정형회로 | |
KR880005607A (ko) | Vtr의 데이타 기록 장치 | |
KR880002128A (ko) | 자기기록 장치의 신호재생 회로 | |
KR910003594A (ko) | Muse 신호용 클램프회로를 구비한 비디오디스크플레이어 | |
ATE122172T1 (de) | Optisches aufzeichnungs- und wiedergabegerät. | |
KR880011756A (ko) | 트렉 카운트 장치 | |
DE59007779D1 (de) | Zählvorrichtung. | |
KR920018660A (ko) | 자기기록 재생장치의 재생유닛 | |
KR860002093A (ko) | 신호 기록 재생장치 | |
JPS62275304A (ja) | 磁気記録再生装置 | |
SU746701A1 (ru) | Устройство дл магнитной записи и контрольного воспроизведени цифровой информации | |
SU458032A1 (ru) | Устройство дл маркировки и поска информации на магнитной ленте | |
SU1427421A1 (ru) | Устройство дл разметки магнитной ленты | |
SU1631587A1 (ru) | Устройство дл воспроизведени цифровой информации с магнитного носител | |
KR910003631A (ko) | 기록 장치를 가진 헤드를 위치 결정하는 서보 시스템 | |
SU593234A1 (ru) | Устройство дл считывани информации с магнитного носител | |
SU371606A1 (ru) | БИБЛИОТ^::кл | |
SU622147A1 (ru) | Устройство дл записи и считывани информации | |
KR900701007A (ko) | 광 디스크 장치 그 클럭 신호 재생 방법 | |
SU464012A1 (ru) | Устройство дл магнитной записи и воспроизведени | |
KR910006961A (ko) | 레이져 디스크의 데이타 추출회로 | |
KR920006920A (ko) | 어드레스 정보 재생 장치 | |
KR890005702A (ko) | 제어트랙을 이용한 고속화면 탐색장치 | |
KR870004421A (ko) | 정보 기록 재생장치 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A201 | Request for examination | ||
E902 | Notification of reason for refusal | ||
E701 | Decision to grant or registration of patent right | ||
GRNT | Written decision to grant | ||
FPAY | Annual fee payment |
Payment date: 20111129 Year of fee payment: 15 |
|
EXPY | Expiration of term |