HK125093A - Optical information carrier,optical device for generating tracking signals and optical device for generating error signals for focussing - Google Patents
Optical information carrier,optical device for generating tracking signals and optical device for generating error signals for focussingInfo
- Publication number
- HK125093A HK125093A HK1250/93A HK125093A HK125093A HK 125093 A HK125093 A HK 125093A HK 1250/93 A HK1250/93 A HK 1250/93A HK 125093 A HK125093 A HK 125093A HK 125093 A HK125093 A HK 125093A
- Authority
- HK
- Hong Kong
- Prior art keywords
- optical device
- generating
- signals
- optical
- focussing
- Prior art date
Links
Classifications
-
- 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
- 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
- G11B7/007—Arrangement of the information on the record carrier, e.g. form of tracks, actual track shape, e.g. wobbled, or cross-section, e.g. v-shaped; Sequential information structures, e.g. sectoring or header formats within a track
- G11B7/00745—Sectoring or header formats within a track
-
- 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
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8204221A FR2523349A1 (fr) | 1982-03-12 | 1982-03-12 | Procede et dispositif optique de generation de signaux d'asservissements de la position d'une tache d'exploration des pistes d'un support d'information |
Publications (1)
Publication Number | Publication Date |
---|---|
HK125093A true HK125093A (en) | 1993-11-19 |
Family
ID=9271939
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
HK1250/93A HK125093A (en) | 1982-03-12 | 1993-11-11 | Optical information carrier,optical device for generating tracking signals and optical device for generating error signals for focussing |
Country Status (8)
Country | Link |
---|---|
US (1) | US4562564A (de) |
EP (1) | EP0089274B1 (de) |
JP (2) | JPH06103537B2 (de) |
CA (1) | CA1202415A (de) |
DE (1) | DE3380648D1 (de) |
FR (1) | FR2523349A1 (de) |
HK (1) | HK125093A (de) |
SG (1) | SG34792G (de) |
Families Citing this family (47)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2523347B1 (fr) * | 1982-03-12 | 1988-11-04 | Thomson Csf | Support d'information mobile pregrave et dispositif optique de suivi de piste mettant en oeuvre un tel support |
FR2613865B1 (fr) * | 1982-03-12 | 1995-09-01 | Thomson Csf | Support d'information mobile pregrave et dispositif optique de suivi de piste mettant en oeuvre un tel support |
FR2528605B1 (fr) * | 1982-06-15 | 1987-11-20 | Thomson Csf | Procede et dispositif optique de focalisation d'un faisceau d'energie lumineuse sur un plan de reference d'un support d'information ainsi que ce support |
US4530079A (en) * | 1983-03-23 | 1985-07-16 | Xerox Corporation | Track following system for optical disc drive |
NL8303564A (nl) * | 1983-10-17 | 1985-05-17 | Philips Nv | Inrichting voor het weergeven van informatie van een optisch uitleesbare registratiedrager. |
JPH0690804B2 (ja) * | 1984-01-20 | 1994-11-14 | 株式会社日立製作所 | 光学的情報記録再生装置 |
FR2567673B1 (fr) * | 1984-07-10 | 1986-11-07 | Thomson Alcatel Gigadisc | Support d'information inscriptible optiquement selon une piste definie par des motifs de pregravure et dispositif optique de suivi de piste mettant en oeuvre un tel support |
NL8500153A (nl) * | 1985-01-22 | 1986-08-18 | Philips Nv | Registratiedragerlichaam voorzien van een reliefstruktuur van optisch detekteerbare servospoorgedeelten en sektoradressen en inrichting voor het aanbrengen van deze struktuur. |
JPS61170934A (ja) * | 1985-01-25 | 1986-08-01 | Hitachi Ltd | 光デイスク記録装置 |
US4748609A (en) * | 1985-03-29 | 1988-05-31 | Hitachi, Ltd. | Method and apparatus for composite tracking servo system with track offset correction and rotary optical disc having at least one correction mark for correcting track offset |
FR2581784B1 (fr) * | 1985-05-10 | 1994-03-25 | Thomson Alcatel Gigadisc | Support d'information a pregravure et son dispositif de lecture optique |
US5012460A (en) * | 1985-05-31 | 1991-04-30 | Information Storage, Inc. | RAM head positioning and tracking system |
US4949331A (en) * | 1985-06-19 | 1990-08-14 | Hitachi, Ltd. | Apparatus and record carrier for optical disc memory with correction pattern and master disc cutting apparatus |
FR2584223B1 (fr) * | 1985-06-28 | 1994-06-17 | Thomson Alcatel Gigadisc | Memoire optique a suivi de piste echantillonne pour support d'information pregrave. |
CA1257391A (en) * | 1985-07-30 | 1989-07-11 | Kurt W. Getreuer | Optical disk tracking and seeking systems and specific track formats (servo areas) |
US4879708A (en) * | 1985-07-30 | 1989-11-07 | Laser Magnetic Storage International Company | Optical disk tracking and seeking systems specific track formats using wobbled pits |
US4779253A (en) * | 1985-07-30 | 1988-10-18 | Laser Magnetic Storage International Company | Sampled servo for an optical disk drive |
US4959823A (en) * | 1985-07-30 | 1990-09-25 | Laser Magnetic Storage International Company | Tracking and seeking system for use with an optical record carrier having a wobbled track format |
US4879707A (en) * | 1985-07-30 | 1989-11-07 | Laser Magnetic Storage International Company | Optical disk tracking and seeking systems specific track formats using discontinuities |
JPH06101125B2 (ja) * | 1986-05-21 | 1994-12-12 | キヤノン株式会社 | 光学的情報記録再生装置 |
JPH0782656B2 (ja) * | 1986-07-11 | 1995-09-06 | 株式会社日立製作所 | 光デイスク装置 |
DE3789808T2 (de) * | 1986-08-25 | 1994-08-18 | Sony Corp | Plattenanordnung und plattenähnliches speichermedium. |
JPH0679378B2 (ja) * | 1986-12-15 | 1994-10-05 | ソニー株式会社 | 光学式記録再生装置のトラツキングサ−ボ回路 |
JP2550051B2 (ja) * | 1987-02-25 | 1996-10-30 | 株式会社日立製作所 | 光カード,光カードの記録再生方法,及び,光カード記録再生装置 |
KR910008503B1 (ko) * | 1987-03-13 | 1991-10-18 | 미쯔비시덴끼 가부시끼가이샤 | 광 디스크 |
JP2619381B2 (ja) * | 1987-03-20 | 1997-06-11 | 株式会社日立製作所 | 光学的情報再生装置 |
JPH0719385B2 (ja) * | 1987-04-24 | 1995-03-06 | 株式会社日立製作所 | 光学的記録再生装置 |
JPS63313331A (ja) * | 1987-06-17 | 1988-12-21 | Pioneer Electronic Corp | 光ディスク |
US5166921A (en) * | 1987-06-17 | 1992-11-24 | Pioneer Electronic Corporation | Optical disk carrying tracking information in multiple formats and apparatus for analyzing same |
JP2735220B2 (ja) * | 1987-12-02 | 1998-04-02 | 株式会社日立製作所 | 非点収差を有する光束を用いた焦点ずれ検出方法及び光ディスク装置 |
JPH073692B2 (ja) * | 1987-12-02 | 1995-01-18 | 株式会社日立製作所 | 光ディスク装置におけるトラッキング制御回路 |
NL8702904A (nl) * | 1987-12-03 | 1989-07-03 | Philips Nv | Werkwijze en inrichting voor het optekenen van informatie op een registratiedrager, alsmede een inrichting voor het lezen van de opgetekende informatie. |
JP2776822B2 (ja) * | 1988-03-10 | 1998-07-16 | 株式会社日立製作所 | 光ディスクの記録再生方法及びその装置 |
DE3852281T2 (de) * | 1987-12-18 | 1995-07-20 | Hitachi Ltd | Verfahren und Gerät zur Datenaufnahme/Wiedergabe. |
US5031166A (en) * | 1988-01-25 | 1991-07-09 | Laser Magnetic Storage International Company | Optical disk tracking and seeking systems and specific track formats using discontinuities and circuitry therefor |
JP2796302B2 (ja) * | 1988-04-13 | 1998-09-10 | 株式会社日立製作所 | 光ディスクの記録または再生方法及び光ディスク装置、及び情報配置方法 |
US5031167A (en) * | 1988-05-26 | 1991-07-09 | Matsushita Electric Industrial Co., Ltd. | Focus error detection system for an optical recording/reproducing system |
JPH02130727A (ja) * | 1988-11-10 | 1990-05-18 | Sony Corp | ディスク状記録媒体 |
US5272686A (en) * | 1988-11-14 | 1993-12-21 | Ricoh Company, Ltd. | Servo signal generator for optical disk driving apparatus |
JP2612329B2 (ja) * | 1988-12-27 | 1997-05-21 | シャープ株式会社 | 光メモリ素子並びに光メモリ再生装置 |
US5218589A (en) * | 1989-04-24 | 1993-06-08 | Ricoh Company, Ltd. | Defect detecting method |
JP2589814B2 (ja) * | 1989-07-19 | 1997-03-12 | 松下電器産業株式会社 | クロック抽出装置およびトラッキング誤差信号採取装置 |
US5148422A (en) * | 1989-08-25 | 1992-09-15 | Sony Corporation | Optical recording medium having a data recording track with offset data storing regions |
FR2660461B1 (fr) * | 1990-04-03 | 1994-10-28 | Atg Sa | Support d'informations pregrave a marques deportees, procede de realisation des marques ainsi que procede d'elaboration d'un signal d'erreur de suivi radial et dispositif de lecture pour la mise en óoeuvre du procede. |
US5561655A (en) * | 1994-12-02 | 1996-10-01 | Eastman Kodak Company | Apparatus and method for differential tracking in a magneto-optic data storage system using mark edge detection |
FR2731808B1 (fr) * | 1995-03-14 | 1997-04-11 | Thomson Csf | Systeme de reglage de focalisation optique |
US9212673B2 (en) | 2011-09-30 | 2015-12-15 | Carefusion 207, Inc. | Maintaining a water level in a humidification component |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3673412A (en) * | 1970-03-02 | 1972-06-27 | Trw Inc | Radiant energy beam scanning method and apparatus |
US3919697A (en) * | 1974-06-26 | 1975-11-11 | Battelle Development Corp | Data record tracking using track identifying information in the gaps between recorded data groups |
DE2522405C2 (de) * | 1975-05-21 | 1982-04-15 | Philips Patentverwaltung Gmbh, 2000 Hamburg | Optisches Mehrkanal-Plattenspeichersystem zum Speichern von digitaler Information |
US4331976A (en) * | 1976-04-08 | 1982-05-25 | Victor Company Of Japan, Ltd. | High density recording system using side-by-side information and servo tracks |
NL187413C (nl) * | 1978-03-16 | 1991-09-16 | Philips Nv | Registratiedragerlichaam, ingeschreven registratiedrager, werkwijze voor het inschrijven van het registratiedragerlichaam en inrichting voor het uitvoeren van de werkwijze en voor het uitlezen van een ingeschreven registratiedrager. |
JPS5637A (en) * | 1979-06-11 | 1981-01-06 | Hitachi Ltd | Tracking system of optical disc memory |
NL8000123A (nl) * | 1980-01-09 | 1981-08-03 | Philips Nv | Inrichting voor het schrijven van digitale informatie in een schijfvormige optisch uitleesbare registratiedrager. |
US4443870A (en) * | 1981-10-15 | 1984-04-17 | Burroughs Corporation | Optical memory system providing track following |
US4402061A (en) * | 1981-10-15 | 1983-08-30 | Burroughs Corporation | Preformatted optical media for use in an optical memory system |
US4417330A (en) * | 1981-10-15 | 1983-11-22 | Burroughs Corporation | Optical memory system providing improved focusing control |
US4494226A (en) * | 1981-10-15 | 1985-01-15 | Burroughs Corporation | Three beam optical memory system |
-
1982
- 1982-03-12 FR FR8204221A patent/FR2523349A1/fr active Granted
-
1983
- 1983-03-07 EP EP83400466A patent/EP0089274B1/de not_active Expired
- 1983-03-07 DE DE8383400466T patent/DE3380648D1/de not_active Expired
- 1983-03-08 CA CA000423065A patent/CA1202415A/en not_active Expired
- 1983-03-09 US US06/473,539 patent/US4562564A/en not_active Expired - Lifetime
- 1983-03-11 JP JP58041360A patent/JPH06103537B2/ja not_active Expired - Lifetime
-
1991
- 1991-06-25 JP JP3250123A patent/JPH0528522A/ja active Pending
-
1992
- 1992-03-20 SG SG347/92A patent/SG34792G/en unknown
-
1993
- 1993-11-11 HK HK1250/93A patent/HK125093A/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
FR2523349A1 (fr) | 1983-09-16 |
EP0089274A1 (de) | 1983-09-21 |
JPH0528522A (ja) | 1993-02-05 |
CA1202415A (en) | 1986-03-25 |
FR2523349B1 (de) | 1984-04-20 |
SG34792G (en) | 1992-05-22 |
US4562564A (en) | 1985-12-31 |
DE3380648D1 (en) | 1989-11-02 |
EP0089274B1 (de) | 1989-09-27 |
JPS58185046A (ja) | 1983-10-28 |
JPH06103537B2 (ja) | 1994-12-14 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PE | Patent expired |