DK0818777T3 - Fremgangsmåde ved optisk søgning og indretning til udøvelse af fremgangsmåden - Google Patents
Fremgangsmåde ved optisk søgning og indretning til udøvelse af fremgangsmådenInfo
- Publication number
- DK0818777T3 DK0818777T3 DK97116982T DK97116982T DK0818777T3 DK 0818777 T3 DK0818777 T3 DK 0818777T3 DK 97116982 T DK97116982 T DK 97116982T DK 97116982 T DK97116982 T DK 97116982T DK 0818777 T3 DK0818777 T3 DK 0818777T3
- Authority
- DK
- Denmark
- Prior art keywords
- track
- signal
- tracking error
- error signal
- true
- 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
- G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
-
- 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)
- Optical Recording Or Reproduction (AREA)
- Moving Of Head For Track Selection And Changing (AREA)
- Die Bonding (AREA)
- Optical Couplings Of Light Guides (AREA)
- Manufacture, Treatment Of Glass Fibers (AREA)
- Optical Communication System (AREA)
- Analysing Materials By The Use Of Radiation (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
- Vehicle Body Suspensions (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
- Platform Screen Doors And Railroad Systems (AREA)
- Mechanical Light Control Or Optical Switches (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/418,723 US5719836A (en) | 1995-04-07 | 1995-04-07 | Optical seeking method and apparatus generating track count signal from tracking error signal and data signal |
Publications (1)
Publication Number | Publication Date |
---|---|
DK0818777T3 true DK0818777T3 (da) | 2001-11-19 |
Family
ID=23659323
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DK97116982T DK0818777T3 (da) | 1995-04-07 | 1996-03-19 | Fremgangsmåde ved optisk søgning og indretning til udøvelse af fremgangsmåden |
Country Status (22)
Country | Link |
---|---|
US (4) | US5719836A (da) |
EP (3) | EP0821351B1 (da) |
JP (2) | JPH08287479A (da) |
KR (4) | KR100278942B1 (da) |
CN (3) | CN1099101C (da) |
AT (3) | ATE207649T1 (da) |
AU (1) | AU721640B2 (da) |
BR (1) | BR9600863A (da) |
CA (1) | CA2170345C (da) |
DE (3) | DE69624611T2 (da) |
DK (1) | DK0818777T3 (da) |
ES (2) | ES2184835T3 (da) |
HK (1) | HK1017763A1 (da) |
ID (1) | ID21816A (da) |
IL (1) | IL117741A (da) |
MX (1) | MXPA96000993A (da) |
MY (3) | MY121897A (da) |
NO (1) | NO960994L (da) |
PT (1) | PT818777E (da) |
RU (1) | RU2201624C2 (da) |
SG (4) | SG79978A1 (da) |
TW (1) | TW318241B (da) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5719836A (en) * | 1995-04-07 | 1998-02-17 | Discovision Associates | Optical seeking method and apparatus generating track count signal from tracking error signal and data signal |
KR0135787B1 (ko) | 1995-05-13 | 1998-05-15 | 김광호 | 씨디-롬 드라이브에서의 디스크 캘리브레인션 방법 |
US5914922A (en) * | 1997-12-12 | 1999-06-22 | Cirrus Logic, Inc. | Generating a quadrature seek signal from a discrete-time tracking error signal and a discrete-time RF data signal in an optical storage device |
TWI230931B (en) * | 2003-12-17 | 2005-04-11 | Mediatek Inc | Method and apparatus for tracking optical disk device |
Family Cites Families (28)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4375091A (en) * | 1978-06-30 | 1983-02-22 | Discovision Associates | Method and apparatus for information retrieval from an optically readable storage medium |
USRE32574E (en) * | 1978-06-30 | 1988-01-05 | Discovision Associates | Method and apparatus for information retrieval from an optically readable storage medium |
US4232201A (en) * | 1978-11-24 | 1980-11-04 | Mca Discovision, Inc. | Dithered center tracking system |
BR7900180A (pt) * | 1979-01-11 | 1980-09-02 | Mca Disco Vision | Aparelho e processo para leitura de informacoes registradas em uma pista de informacoes sobre uma superficie de um disco |
US4484319A (en) * | 1980-09-19 | 1984-11-20 | Matsushita Electric Industrial Co., Ltd. | Apparatus for locating a track on disc-like optical information carriers |
US4414655A (en) * | 1981-03-31 | 1983-11-08 | Discovision Associates | Scanning beam control system |
US4406000A (en) * | 1981-03-31 | 1983-09-20 | Discovision Associates | Tracking system for optical record medium |
US4701898A (en) * | 1981-12-21 | 1987-10-20 | Discovision Associates | Method and apparatus for locating a selected track on a record disc |
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 |
US4751692A (en) * | 1982-04-15 | 1988-06-14 | Discovision Associates | Method and apparatus for recovering information from a videodisc |
US4727532A (en) * | 1982-04-15 | 1988-02-23 | Discovision Associates | Method and apparatus for recovering information from a videodisc |
US4706133A (en) * | 1982-04-15 | 1987-11-10 | Discovision Associates | Method and apparatus for recovering information from a videodisc |
US4536863A (en) * | 1982-04-15 | 1985-08-20 | Discovision Associates | Method and apparatus for recovering information from a videodisc |
US4845697A (en) * | 1982-04-15 | 1989-07-04 | Discovision Associates | Method of time limited searching for a track address on an optically read information disc |
US4627038A (en) * | 1984-07-05 | 1986-12-02 | Storage Technology Partners Ii | Optical disk storage unit having a servo system with different velocity inputs |
JPH01169741A (ja) * | 1987-12-24 | 1989-07-05 | Nec Corp | トラック極性検出装置 |
JPH0654543B2 (ja) * | 1988-07-22 | 1994-07-20 | シャープ株式会社 | 光ピックアップのトラックジャンプ装置 |
US5146440A (en) * | 1988-08-29 | 1992-09-08 | Matsushita Electric Industrial Co., Ltd. | Track search apparatus |
JPH069087B2 (ja) * | 1988-10-06 | 1994-02-02 | キヤノン株式会社 | 光学的情報記録再生装置 |
JP2663616B2 (ja) * | 1989-03-07 | 1997-10-15 | 松下電器産業株式会社 | トラック検索装置 |
JPH0373422A (ja) * | 1989-05-18 | 1991-03-28 | Nec Corp | 光ディスク装置の和信号処理回路 |
US5210731A (en) * | 1989-06-01 | 1993-05-11 | Kabushiki Kaisha Toshiba | Information processing apparatus with missing pulse detection and correction |
JP2797579B2 (ja) * | 1989-12-28 | 1998-09-17 | ソニー株式会社 | 目標トラック位置検索装置 |
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 |
JP2598166B2 (ja) * | 1990-12-19 | 1997-04-09 | シャープ株式会社 | 光ディスク媒体駆動装置 |
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 |
US5351222A (en) * | 1991-10-08 | 1994-09-27 | Fujitsu Limited | Disk storage apparatus including a single power supply hysteresis comparator having a symmetrical characteristic |
US5719836A (en) * | 1995-04-07 | 1998-02-17 | Discovision Associates | Optical seeking method and apparatus generating track count signal from tracking error signal and data signal |
-
1995
- 1995-04-07 US US08/418,723 patent/US5719836A/en not_active Expired - Lifetime
- 1995-06-07 US US08/473,867 patent/US5659526A/en not_active Expired - Lifetime
- 1995-06-07 US US08/474,608 patent/US5581526A/en not_active Expired - Lifetime
-
1996
- 1996-02-16 TW TW085101938A patent/TW318241B/zh not_active IP Right Cessation
- 1996-02-26 CA CA002170345A patent/CA2170345C/en not_active Expired - Fee Related
- 1996-02-27 SG SG9801351A patent/SG79978A1/en unknown
- 1996-02-27 SG SG1998001349A patent/SG74633A1/en unknown
- 1996-02-27 SG SG1998001352A patent/SG74634A1/en unknown
- 1996-02-27 SG SG1996006107A patent/SG42350A1/en unknown
- 1996-02-29 AU AU45787/96A patent/AU721640B2/en not_active Ceased
- 1996-02-29 BR BR9600863A patent/BR9600863A/pt not_active IP Right Cessation
- 1996-03-11 NO NO960994A patent/NO960994L/no not_active Application Discontinuation
- 1996-03-15 JP JP8097273A patent/JPH08287479A/ja active Pending
- 1996-03-15 MX MXPA96000993A patent/MXPA96000993A/es not_active IP Right Cessation
- 1996-03-18 MY MYPI96000983A patent/MY121897A/en unknown
- 1996-03-18 MY MYPI98002766A patent/MY122163A/en unknown
- 1996-03-18 MY MYPI98002768A patent/MY135235A/en unknown
- 1996-03-19 ES ES96301865T patent/ES2184835T3/es not_active Expired - Lifetime
- 1996-03-19 AT AT97116982T patent/ATE207649T1/de not_active IP Right Cessation
- 1996-03-19 DE DE69624611T patent/DE69624611T2/de not_active Expired - Lifetime
- 1996-03-19 DE DE69616301T patent/DE69616301T2/de not_active Expired - Lifetime
- 1996-03-19 DE DE69624694T patent/DE69624694T2/de not_active Expired - Lifetime
- 1996-03-19 AT AT97116974T patent/ATE227462T1/de not_active IP Right Cessation
- 1996-03-19 PT PT97116982T patent/PT818777E/pt unknown
- 1996-03-19 AT AT96301865T patent/ATE227461T1/de not_active IP Right Cessation
- 1996-03-19 ES ES97116982T patent/ES2166035T3/es not_active Expired - Lifetime
- 1996-03-19 EP EP97116974A patent/EP0821351B1/en not_active Expired - Lifetime
- 1996-03-19 EP EP97116982A patent/EP0818777B1/en not_active Expired - Lifetime
- 1996-03-19 EP EP96301865A patent/EP0736864B1/en not_active Expired - Lifetime
- 1996-03-19 DK DK97116982T patent/DK0818777T3/da active
- 1996-03-26 KR KR1019960008269A patent/KR100278942B1/ko not_active IP Right Cessation
- 1996-03-29 RU RU96106416/28A patent/RU2201624C2/ru not_active IP Right Cessation
- 1996-03-29 ID IDP990145D patent/ID21816A/id unknown
- 1996-03-29 CN CN96104152A patent/CN1099101C/zh not_active Expired - Fee Related
- 1996-03-31 IL IL11774196A patent/IL117741A/en not_active IP Right Cessation
-
1998
- 1998-02-13 US US09/023,357 patent/US6317393B1/en not_active Expired - Lifetime
- 1998-06-05 KR KR1019980020934A patent/KR100278940B1/ko not_active IP Right Cessation
- 1998-06-05 KR KR1019980020935A patent/KR100278939B1/ko not_active IP Right Cessation
- 1998-06-05 KR KR1019980020936A patent/KR100278938B1/ko not_active IP Right Cessation
- 1998-06-22 CN CN98115025A patent/CN1214502A/zh active Pending
- 1998-06-22 CN CN98115020A patent/CN1114200C/zh not_active Expired - Fee Related
-
1999
- 1999-07-06 HK HK99102872A patent/HK1017763A1/xx not_active IP Right Cessation
-
2002
- 2002-08-09 JP JP2002232304A patent/JP2003115118A/ja active Pending
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