KR100188666B1 - 컴팩트 디스크 드라이브의 슬래드 서어보 제어 방법 - Google Patents
컴팩트 디스크 드라이브의 슬래드 서어보 제어 방법 Download PDFInfo
- Publication number
- KR100188666B1 KR100188666B1 KR1019960004896A KR19960004896A KR100188666B1 KR 100188666 B1 KR100188666 B1 KR 100188666B1 KR 1019960004896 A KR1019960004896 A KR 1019960004896A KR 19960004896 A KR19960004896 A KR 19960004896A KR 100188666 B1 KR100188666 B1 KR 100188666B1
- Authority
- KR
- South Korea
- Prior art keywords
- signal
- pickup
- slad
- disk drive
- servo
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Fee Related
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
- 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
- G11B7/0857—Arrangements for mechanically moving the whole head
- G11B7/08582—Sled-type positioners
-
- 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
- G11B7/08529—Methods and circuits to control the velocity of the head as it traverses the tracks
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- 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
- G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
- G11B7/0901—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam 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 only
-
- 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
- G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
- G11B7/0938—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following servo format, e.g. guide tracks, pilot signals
Landscapes
- Optical Recording Or Reproduction (AREA)
Abstract
Description
Claims (10)
- 픽업으로 부터의 트래킹 오차 신호(Tracking Error Signal)를 펄스 신호로 변환하는 제1단계; 상기 펄스 신호를 계수하는 제2단계; 상기 계수된 값에 따라 상기 픽업의 위치를 추정하는 제3단계; 상기 추정된 위치에 따라 소정의 속도 신호를 발생시키는 제4단계; 및 상기 속도 신호에 따라 슬래드 모터를 구동시키는 제5단계; 를 포함한 것을 그 특징으로 하는 컴팩트 디스크 드라이브의 슬래드 서어보 제어 방법.
- 제1항에 있어서, 상기 제2단계, 제3단계, 및 제4단계는, 상기 컴팩트 디스크 드라이브 내의 디지탈 신호 처리기(Digital Signal Processor)에서 수행되는 것을 그 특징으로 하는 컴팩트 디스크 드라이브의 슬래드 서어보 제어 방법.
- 제2항에 있어서, 상기 제3단계 및 제4단계는, 디코더(Decoder) 및 롬(Read Only Memory)에서 수행되는 것을 그 특징으로 하는 컴팩트 디스크 드라이브의 슬래드 서어보 제어 방법.
- 제3항에 있어서, 상기 롬에는, 소정의 속도 프로파일 데이터가 저장된 것을 그 특징으로 하는 컴팩트 디스크 드라이브의 슬래드 서어보 제어 방법.
- 제3항에 있어서, 상기 제5단계는, 상기 롬으로부터 출력되는 데이터를 아날로그 신호로 변환시킨 후, 이를 해당 슬래드 모터 구동부에 입력시키는 것을 그 특징으로 하는 컴팩트 디스크 드라이브의 슬래드서어보 제어 방법.
- 픽업으로부터의 RF 신호(Radio Frequency signal)로 부터 미러 신호(Mirror Signal)를 방생시키는 제1단계; 상기 미러 신호를 펄스 신호로 변환하는 제2단계; 상기 펄스 신호를 계수하는 제3단계; 상기 계수된 값에 따라 상기 픽업의 위치를 추정하는 제4단계; 상기 추정된 위치에 따라 소정의 속도 신호를 발생시키는 제5단계; 상기 속도 신호에 따라 슬래드 모터를 구동시키는 제6단계; 를 포함한 것을 그 특징으로 하는 컴팩트 디스크 드라이브의 슬래드 서어보 제어 방법.
- 제6항에 있어서, 상기 제3단계, 제4단계, 및 제5단계는, 상기 컴팩트 디스크 드라이브 내의 디지탈 신호 처리기(Digital Signal Processor)에서 수행되는 것을 그 특 징으로 하는 컴팩트 디스크 드라이브의 슬래드 서어보 제어 방법.
- 제7항에 있어서, 상기 제4단계 및 제5단계는, 디코더(Decoder) 및 롬(Read Only Memory)에서 수행되는 것을 그 특징으로 하는 컴팩트 디스크 드라이브의 슬래드 서어보 제어 방법.
- 제8항에 있어서, 상기 롬에는, 소정의 속도 프로파일 데이터가 저장된 것을 그 특징으로 하는 컴팩트 디스크 드라이브의 슬래드 서어보 제어 방법.
- 제8항에 있어서, 상기 제6단계는, 상기 롬으로부터 출력되는 데이터를 아날로그 신호로 변환시킨 후, 이를 해당 슬래드 모터 구동부에 입력시키는 것을 그 특징으로 하는 킴팩트 디스크 드라이브의 슬래드 서어보 제어 방법.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019960004896A KR100188666B1 (ko) | 1996-02-27 | 1996-02-27 | 컴팩트 디스크 드라이브의 슬래드 서어보 제어 방법 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019960004896A KR100188666B1 (ko) | 1996-02-27 | 1996-02-27 | 컴팩트 디스크 드라이브의 슬래드 서어보 제어 방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR970063168A KR970063168A (ko) | 1997-09-12 |
KR100188666B1 true KR100188666B1 (ko) | 1999-06-01 |
Family
ID=19451924
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019960004896A Expired - Fee Related KR100188666B1 (ko) | 1996-02-27 | 1996-02-27 | 컴팩트 디스크 드라이브의 슬래드 서어보 제어 방법 |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR100188666B1 (ko) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100546278B1 (ko) * | 1998-08-21 | 2006-04-28 | 삼성전자주식회사 | 광디스크시스템의트랙킹/슬레드속도제어방법및장치 |
-
1996
- 1996-02-27 KR KR1019960004896A patent/KR100188666B1/ko not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
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KR970063168A (ko) | 1997-09-12 |
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