ES2184835T3 - Metodo y aparato de busqueda optica de pista. - Google Patents
Metodo y aparato de busqueda optica de pista.Info
- Publication number
- ES2184835T3 ES2184835T3 ES96301865T ES96301865T ES2184835T3 ES 2184835 T3 ES2184835 T3 ES 2184835T3 ES 96301865 T ES96301865 T ES 96301865T ES 96301865 T ES96301865 T ES 96301865T ES 2184835 T3 ES2184835 T3 ES 2184835T3
- Authority
- ES
- Spain
- Prior art keywords
- track
- signal
- tracking error
- error signal
- true
- 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 - Lifetime
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)
- Vehicle Body Suspensions (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
- Analysing Materials By The Use Of Radiation (AREA)
- Platform Screen Doors And Railroad Systems (AREA)
- Mechanical Light Control Or Optical Switches (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
Abstract
SE EXPONE UN METODO PARA MOVER UNA CABEZA OPTICA DESDE UNA BANDA INICIAL (10) A UNA BANDA OBJETIVO (11) EN UN MEDIO DE ALMACENAMIENTO (1). EL NUMERO TOTAL DE BANDAS (3) A CRUZAR SE DETERMINA, Y LA CABEZA OPTICA SE MUEVE HACIA LA BANDA OBJETIVO (11). UN NIVEL DE REFLECTIVIDAD DE LUZ DEL MEDIO DE ALMACENAMIENTO (1) SE MIDE, Y SE DERIVA UNA SEÑAL DE ERROR DE BANDA MEDIANTE DICHO NIVEL DE REFLECTIVIDAD. ESTA SEÑAL DE ERROR DE BANDA POSEE INDICADORES TANTO VERDADEROS COMO FALSOS DE CRUCES DE BANDA. SE DERIVA UNA SEÑAL INDICADORA DE DATOS POR MEDIO DEL NIVEL DE REFLECTIVIDAD, CON PUNTOS INDICADORES CORRESPONDIENTES A LOS INDICADORES FALSOS DE LOS CRUCES DE BANDA. SE INCREMENTA UN NUMERO DE RECUENTO DE BANDAS PARA CADA INDICADOR VERDADERO DE UN CRUCE DE BANDA, Y SE PARA LA CABEZA OPTICA CUANDO DICHO NUMERO DE RECUENTO DE BANDAS IGUALA EL NUMERO TOTAL DE BANDAS (3) A CRUZAR. SE EXPONE OTRO METODO EN EL QUE UNA SEÑAL DE RECUENTO DE BANDA SE GENERA A PARTIR DE LA SEÑAL DE ERROR DE BANDA Y LA SEÑAL INDICADORA DE DATOS. LA SEÑAL DE RECUENTO DE BANDAS INDICA LOS CRUCES DE BANDA CORRESPONDIENTES A LOS INDICADORES VERDADEROS DE CRUCES DE BANDA EN LA SEÑAL DE ERROR DE RASTREO.
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 |
---|---|
ES2184835T3 true ES2184835T3 (es) | 2003-04-16 |
Family
ID=23659323
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES96301865T Expired - Lifetime ES2184835T3 (es) | 1995-04-07 | 1996-03-19 | Metodo y aparato de busqueda optica de pista. |
ES97116982T Expired - Lifetime ES2166035T3 (es) | 1995-04-07 | 1996-03-19 | Metodo y aparato de busqueda optica. |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES97116982T Expired - Lifetime ES2166035T3 (es) | 1995-04-07 | 1996-03-19 | Metodo y aparato de busqueda optica. |
Country Status (22)
Country | Link |
---|---|
US (4) | US5719836A (es) |
EP (3) | EP0818777B1 (es) |
JP (2) | JPH08287479A (es) |
KR (4) | KR100278942B1 (es) |
CN (3) | CN1099101C (es) |
AT (3) | ATE227462T1 (es) |
AU (1) | AU721640B2 (es) |
BR (1) | BR9600863A (es) |
CA (1) | CA2170345C (es) |
DE (3) | DE69624611T2 (es) |
DK (1) | DK0818777T3 (es) |
ES (2) | ES2184835T3 (es) |
HK (1) | HK1017763A1 (es) |
ID (1) | ID21816A (es) |
IL (1) | IL117741A (es) |
MX (1) | MXPA96000993A (es) |
MY (3) | MY135235A (es) |
NO (1) | NO960994L (es) |
PT (1) | PT818777E (es) |
RU (1) | RU2201624C2 (es) |
SG (4) | SG42350A1 (es) |
TW (1) | TW318241B (es) |
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 |
---|---|---|---|---|
USRE32574E (en) * | 1978-06-30 | 1988-01-05 | Discovision Associates | Method and apparatus for information retrieval from an optically readable storage medium |
US4375091A (en) * | 1978-06-30 | 1983-02-22 | 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 |
US4406000A (en) * | 1981-03-31 | 1983-09-20 | Discovision Associates | Tracking system for optical record medium |
US4414655A (en) * | 1981-03-31 | 1983-11-08 | Discovision Associates | Scanning beam control system |
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 |
US4701898A (en) * | 1981-12-21 | 1987-10-20 | Discovision Associates | Method and apparatus for locating a selected track on a record disc |
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 |
US4751692A (en) * | 1982-04-15 | 1988-06-14 | 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 |
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 |
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 SG1996006107A patent/SG42350A1/en unknown
- 1996-02-27 SG SG1998001352A patent/SG74634A1/en unknown
- 1996-02-27 SG SG9801351A patent/SG79978A1/en unknown
- 1996-02-27 SG SG1998001349A patent/SG74633A1/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 MYPI98002768A patent/MY135235A/en unknown
- 1996-03-18 MY MYPI96000983A patent/MY121897A/en unknown
- 1996-03-18 MY MYPI98002766A patent/MY122163A/en unknown
- 1996-03-19 DE DE69624611T patent/DE69624611T2/de not_active Expired - Lifetime
- 1996-03-19 EP EP97116982A patent/EP0818777B1/en not_active Expired - Lifetime
- 1996-03-19 EP EP97116974A patent/EP0821351B1/en not_active Expired - Lifetime
- 1996-03-19 AT AT97116974T patent/ATE227462T1/de not_active IP Right Cessation
- 1996-03-19 ES ES96301865T patent/ES2184835T3/es not_active Expired - Lifetime
- 1996-03-19 PT PT97116982T patent/PT818777E/pt unknown
- 1996-03-19 DK DK97116982T patent/DK0818777T3/da active
- 1996-03-19 AT AT96301865T patent/ATE227461T1/de not_active IP Right Cessation
- 1996-03-19 EP EP96301865A patent/EP0736864B1/en not_active Expired - Lifetime
- 1996-03-19 AT AT97116982T patent/ATE207649T1/de not_active IP Right Cessation
- 1996-03-19 DE DE69624694T patent/DE69624694T2/de not_active Expired - Lifetime
- 1996-03-19 ES ES97116982T patent/ES2166035T3/es not_active Expired - Lifetime
- 1996-03-19 DE DE69616301T patent/DE69616301T2/de not_active Expired - Lifetime
- 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 KR1019980020936A patent/KR100278938B1/ko not_active IP Right Cessation
- 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
- 1998-06-22 CN CN98115020A patent/CN1114200C/zh not_active Expired - Fee Related
- 1998-06-22 CN CN98115025A patent/CN1214502A/zh active Pending
-
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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