DE3273918D1 - Opto-electronic apparatus for writing and/or reading recording tracks by means of a radiation beam - Google Patents
Opto-electronic apparatus for writing and/or reading recording tracks by means of a radiation beamInfo
- Publication number
- DE3273918D1 DE3273918D1 DE8282200838T DE3273918T DE3273918D1 DE 3273918 D1 DE3273918 D1 DE 3273918D1 DE 8282200838 T DE8282200838 T DE 8282200838T DE 3273918 T DE3273918 T DE 3273918T DE 3273918 D1 DE3273918 D1 DE 3273918D1
- Authority
- DE
- Germany
- Prior art keywords
- accordance
- objective
- freedom
- objective holder
- frame
- 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
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C32/00—Bearings not otherwise provided for
- F16C32/04—Bearings not otherwise provided for using magnetic or electric supporting means
- F16C32/0406—Magnetic bearings
- F16C32/044—Active magnetic bearings
- F16C32/0444—Details of devices to control the actuation of the electromagnets
-
- 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
- G11B7/0857—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
- G11B7/09—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
- G11B7/0908—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 focusing only
- G11B7/0914—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 focusing only by non-optical methods, e.g. capacitive
-
- 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
- G11B7/0925—Electromechanical actuators for lens positioning
- G11B7/093—Electromechanical actuators for lens positioning for focusing and tracking
-
- 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
- G11B7/0943—Methods and circuits for performing mathematical operations on individual detector segment outputs
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2370/00—Apparatus relating to physics, e.g. instruments
- F16C2370/12—Hard disk drives or the like
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C32/00—Bearings not otherwise provided for
- F16C32/04—Bearings not otherwise provided for using magnetic or electric supporting means
- F16C32/0406—Magnetic bearings
- F16C32/044—Active magnetic bearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C32/00—Bearings not otherwise provided for
- F16C32/04—Bearings not otherwise provided for using magnetic or electric supporting means
- F16C32/0406—Magnetic bearings
- F16C32/044—Active magnetic bearings
- F16C32/0472—Active magnetic bearings for linear movement
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL8103305A NL8103305A (nl) | 1981-07-10 | 1981-07-10 | Opto-elektronische inrichting voor het met een stralingsbundel inschrijven en/of uitlezen van registratiesporen. |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3273918D1 true DE3273918D1 (en) | 1986-11-27 |
Family
ID=19837774
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE8585201110T Expired - Lifetime DE3280200D1 (de) | 1981-07-10 | 1982-07-06 | Optoelektronisches geraet zur aufzeichnung oder wiedergabe von informationsspuren mittels eines strahlenbuendels. |
DE8282200838T Expired DE3273918D1 (en) | 1981-07-10 | 1982-07-06 | Opto-electronic apparatus for writing and/or reading recording tracks by means of a radiation beam |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE8585201110T Expired - Lifetime DE3280200D1 (de) | 1981-07-10 | 1982-07-06 | Optoelektronisches geraet zur aufzeichnung oder wiedergabe von informationsspuren mittels eines strahlenbuendels. |
Country Status (13)
Country | Link |
---|---|
US (1) | US4561081A (de) |
EP (2) | EP0186218B1 (de) |
JP (1) | JPH0680533B2 (de) |
KR (1) | KR880002696B1 (de) |
AT (2) | ATE23072T1 (de) |
AU (1) | AU8568982A (de) |
CA (1) | CA1188797A (de) |
DD (1) | DD206598A5 (de) |
DE (2) | DE3280200D1 (de) |
ES (1) | ES513804A0 (de) |
HK (2) | HK39287A (de) |
NL (1) | NL8103305A (de) |
SG (1) | SG20587G (de) |
Families Citing this family (46)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
USRE32285E (en) * | 1982-02-26 | 1986-11-11 | Atasi Corporation | Linear actuator for a memory storage apparatus |
US4743987A (en) * | 1982-02-26 | 1988-05-10 | Atasi Corporation | Linear actuator for a memory storage apparatus |
US4414594A (en) * | 1982-02-26 | 1983-11-08 | Atasi Corporation | Linear actuator for a memory storage apparatus |
FR2522861B1 (fr) * | 1982-03-02 | 1988-01-08 | Thomson Csf | Tete optique d'ecriture-lecture d'un disque optique et dispositif optique associe a une telle tete |
DE3234288C2 (de) * | 1982-09-16 | 1984-07-26 | Philips Patentverwaltung Gmbh, 2000 Hamburg | Optische Vorrichtung zur Lenkung bzw. Ausrichtung eines Strahlenbündels |
JPS59154677A (ja) * | 1983-02-22 | 1984-09-03 | Matsushita Electric Ind Co Ltd | トラツキング制御装置 |
DE3324861C2 (de) * | 1983-07-09 | 1986-02-13 | Deutsche Thomson-Brandt Gmbh, 7730 Villingen-Schwenningen | Lesevorrichtung zum optischen Abtasten von auf einem bewegten plattenförmigen Träger aufgezeichneten Informationen |
AU575332B2 (en) * | 1983-07-29 | 1988-07-28 | Sony Corporation | Optical disk pick-up |
US4643522A (en) * | 1983-08-03 | 1987-02-17 | Sony Corporation | Optical pickup having a driving unit for moving objective lens |
EP0135750B1 (de) * | 1983-08-26 | 1988-06-22 | Hitachi, Ltd. | Aufzeichnungs- und Wiedergabegerät für optische Informationen |
JPS6085446A (ja) * | 1983-10-17 | 1985-05-14 | Asahi Optical Co Ltd | 光学的情報記録再生装置の対物レンズ駆動装置 |
NL8303563A (nl) * | 1983-10-17 | 1985-05-17 | Philips Nv | Inrichting voor het weergeven van digitale informatie via een overdrachtsmedium. |
JPS60239943A (ja) * | 1984-05-15 | 1985-11-28 | Matsushita Electric Ind Co Ltd | 光学ヘツド |
NL8403034A (nl) * | 1984-10-05 | 1986-05-01 | Philips Nv | Opto-elektronisch fokusfout-detektiestelsel. |
NL8501665A (nl) * | 1985-06-10 | 1987-01-02 | Philips Nv | Optische aftasteenheid met positie- en standdetektiestelsel voor een elektromagnetisch gelagerd objektief. |
DE3687840D1 (de) * | 1985-08-14 | 1993-04-01 | Philips Patentverwaltung | Optische abtasteinheit. |
DE3640660A1 (de) * | 1985-11-28 | 1987-06-04 | Toshiba Kk | Vorrichtung zur bestimmung der stellung eines objektivs |
JPS62132242A (ja) * | 1985-12-04 | 1987-06-15 | Hitachi Ltd | 光デイスク装置 |
DE3543568A1 (de) * | 1985-12-10 | 1987-06-11 | Thomson Brandt Gmbh | Verfahren fuer das spursuchen bei einem rotierenden plattenfoermigen informationstraeger und schaltungsanordnung zur durchfuehrung des verfahrens |
JPH0750526B2 (ja) * | 1986-03-15 | 1995-05-31 | ソニー株式会社 | デイスクプレ−ヤの光学ヘツド装置 |
US4763314A (en) * | 1986-08-13 | 1988-08-09 | Optimem | Linear actuator for an optical disk storage apparatus |
US4819220A (en) * | 1986-09-12 | 1989-04-04 | Olympus Optical Co., Ltd. | Optical information recording and reproducing apparatus |
US4799210A (en) * | 1986-11-05 | 1989-01-17 | Unisys Corporation | Fiber optic read/write head for an optical disk memory system |
JP2635608B2 (ja) * | 1987-08-29 | 1997-07-30 | 株式会社東芝 | 光学的情報記憶媒体検査装置 |
JPH01201831A (ja) * | 1988-02-05 | 1989-08-14 | Olympus Optical Co Ltd | 光学的情報記録再生装置 |
FR2640828A1 (fr) * | 1988-07-21 | 1990-06-22 | Seiko Epson Corp | Actionneur electromagnetique |
US5090002A (en) * | 1989-03-07 | 1992-02-18 | International Business Machines Corporation | Positioning systems employing velocity and position control loops with position control loop having an extended range |
US5265079A (en) | 1991-02-15 | 1993-11-23 | Applied Magnetics Corporation | Seek actuator for optical recording |
US6141300A (en) * | 1989-06-20 | 2000-10-31 | Discovision Associates | Optical actuator including lens assembly with optical axis having symmetric suspensory forces acting thereon and optical disc system including same |
US5070489A (en) * | 1989-08-01 | 1991-12-03 | Eastman Kodak Company | Driving circuit for double solenoid focus actuator |
DE4028703A1 (de) * | 1990-09-10 | 1992-03-12 | Thomson Brandt Gmbh | Verfahren zum messen oder regeln des radial- und tangentialwinkels eines lichtstrahls |
US5412640A (en) * | 1990-09-10 | 1995-05-02 | Deutsche Thomson-Brandt Gmbh | Method for measuring and regulating the radial and tangential angles of a light beam |
US5216562A (en) * | 1990-09-25 | 1993-06-01 | International Business Machines Corporation | Multi-beam optical recording system and method |
US6236625B1 (en) | 1991-02-15 | 2001-05-22 | Discovision Associates | Optical disc system having current monitoring circuit with controller for laser driver and method for operating same |
US5729511A (en) | 1991-02-15 | 1998-03-17 | Discovision Associates | Optical disc system having servo motor and servo error detection assembly operated relative to monitored quad sum signal |
US5677899A (en) * | 1991-02-15 | 1997-10-14 | Discovision Associates | Method for moving carriage assembly from initial position to target position relative to storage medium |
US6069857A (en) * | 1991-02-15 | 2000-05-30 | Discovision Associates | Optical disc system having improved circuitry for performing blank sector check on readable disc |
US5220222A (en) * | 1991-12-23 | 1993-06-15 | Eastman Kodak Company | Magnetic bushings for an optical access actuator |
JPH087315A (ja) * | 1994-06-21 | 1996-01-12 | Sony Corp | 光学ピックアップ |
US6434087B1 (en) | 1995-01-25 | 2002-08-13 | Discovision Associates | Optical disc system and method for controlling bias coil and light source to process information on a storage medium |
US6091684A (en) * | 1995-01-25 | 2000-07-18 | Discovision Associates | Optical disc system and method for changing the rotational rate of an information storage medium |
US5740139A (en) * | 1996-08-09 | 1998-04-14 | Eastman Kodak Company | Magnetically suspended optical recording actuator |
NL1003890C2 (nl) * | 1996-08-27 | 1998-03-03 | Robi Omp Mastering Dev Gmbh | Inrichting voor het door middel van een laserstraal optekenen van informatie op een schijfvormig substraat. |
US6288383B1 (en) * | 1999-10-25 | 2001-09-11 | Rafael-Armament Development Authority Ltd. | Laser spot locating device and system |
JP2006262637A (ja) * | 2005-03-17 | 2006-09-28 | Toshiba Corp | 静電アクチュエータ及びそれを用いた撮像装置 |
US8953154B2 (en) * | 2012-07-26 | 2015-02-10 | Vivonics, Inc. | Orientation tracking system and method |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3517360A (en) * | 1966-07-14 | 1970-06-23 | Bell Aerospace Corp | Electromagnetic force motor having linear output characteristics |
US3865442A (en) * | 1970-12-22 | 1975-02-11 | Nasa | Magnetic bearing |
US3663075A (en) * | 1971-02-18 | 1972-05-16 | Gen Dynamics Corp | Self-centering permanent magnet bearing |
US4183060A (en) * | 1976-03-19 | 1980-01-08 | Rca Corporation | Capacitance distance sensor apparatus for video disc player/recorder |
US4100576A (en) * | 1976-04-28 | 1978-07-11 | Zenith Radio Corporation | Electromagnetic optical beam controller having an eddy current damper for arresting mechanical resonance |
NL176315C (nl) * | 1976-05-12 | 1985-03-18 | Philips Nv | Optische aftastinrichting. |
JPS52139312A (en) * | 1976-05-17 | 1977-11-21 | Sony Corp | Recording/reproducing device |
JPS5922441B2 (ja) * | 1977-02-18 | 1984-05-26 | 株式会社東芝 | 磁気浮上車の制御装置 |
JPS53108403A (en) * | 1977-03-04 | 1978-09-21 | Sony Corp | Mirror supporting device for video disc |
NL7703232A (nl) * | 1977-03-25 | 1978-09-27 | Philips Nv | Optische aftastinrichting. |
US4302830A (en) * | 1978-05-10 | 1981-11-24 | Olympus Optical Company Ltd. | Optical information reading-out apparatus |
FR2443734A1 (fr) * | 1978-12-08 | 1980-07-04 | Thomson Csf | Dispositif d'acces a une piste portee par un support enregistrable ou lisible optiquement et systeme optique comportant un tel dispositif |
JPS5680834A (en) * | 1979-11-30 | 1981-07-02 | Seiko Instr & Electronics Ltd | Optical information reader |
JPS56119944A (en) * | 1980-02-27 | 1981-09-19 | Sony Corp | Disc player |
NL8004969A (nl) * | 1980-09-02 | 1982-04-01 | Philips Nv | Inrichting voor optische scherpstelling. |
JPS57147143A (en) * | 1981-03-07 | 1982-09-10 | Olympus Optical Co Ltd | Objective lens driving device |
-
1981
- 1981-07-10 NL NL8103305A patent/NL8103305A/nl not_active Application Discontinuation
- 1981-10-21 US US06/313,701 patent/US4561081A/en not_active Expired - Lifetime
-
1982
- 1982-07-06 AT AT82200838T patent/ATE23072T1/de not_active IP Right Cessation
- 1982-07-06 AT AT85201110T patent/ATE54218T1/de not_active IP Right Cessation
- 1982-07-06 EP EP85201110A patent/EP0186218B1/de not_active Expired - Lifetime
- 1982-07-06 DE DE8585201110T patent/DE3280200D1/de not_active Expired - Lifetime
- 1982-07-06 EP EP82200838A patent/EP0070070B1/de not_active Expired
- 1982-07-06 DE DE8282200838T patent/DE3273918D1/de not_active Expired
- 1982-07-07 DD DD82241473A patent/DD206598A5/de unknown
- 1982-07-07 AU AU85689/82A patent/AU8568982A/en not_active Abandoned
- 1982-07-08 KR KR8203046A patent/KR880002696B1/ko active
- 1982-07-08 ES ES513804A patent/ES513804A0/es active Granted
- 1982-07-08 CA CA000406874A patent/CA1188797A/en not_active Expired
- 1982-07-10 JP JP57119202A patent/JPH0680533B2/ja not_active Expired - Lifetime
-
1987
- 1987-02-26 SG SG205/87A patent/SG20587G/en unknown
- 1987-05-21 HK HK392/87A patent/HK39287A/xx not_active IP Right Cessation
-
1994
- 1994-05-19 HK HK49394A patent/HK49394A/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
ATE23072T1 (de) | 1986-11-15 |
DE3280200D1 (de) | 1990-08-02 |
EP0070070A1 (de) | 1983-01-19 |
EP0186218A3 (en) | 1986-10-29 |
ES8305959A1 (es) | 1983-04-16 |
HK49394A (en) | 1994-05-27 |
JPS5817552A (ja) | 1983-02-01 |
AU8568982A (en) | 1983-01-13 |
KR840000864A (ko) | 1984-02-27 |
DD206598A5 (de) | 1984-02-01 |
CA1188797A (en) | 1985-06-11 |
SG20587G (en) | 1987-07-03 |
EP0070070B1 (de) | 1986-10-22 |
ATE54218T1 (de) | 1990-07-15 |
EP0186218B1 (de) | 1990-06-27 |
EP0186218A2 (de) | 1986-07-02 |
HK39287A (en) | 1987-05-29 |
KR880002696B1 (ko) | 1988-12-20 |
ES513804A0 (es) | 1983-04-16 |
NL8103305A (nl) | 1983-02-01 |
JPH0680533B2 (ja) | 1994-10-12 |
US4561081A (en) | 1985-12-24 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE3273918D1 (en) | Opto-electronic apparatus for writing and/or reading recording tracks by means of a radiation beam | |
NO308240B1 (no) | FremgangsmÕte for merking av legemer i bevegelse og apparat for merking av legemer i bevegelse | |
SE8105989L (sv) | Apparat for avlesning och/eller uppteckning av en optiskt lesbar informationsstruktur | |
MY108211A (en) | Information processing apparatus | |
GB1327450A (en) | Machine tool including a rectilinearly movable part | |
SG67193G (en) | Optical scanning device,mirror objective suitable for use therein and an optical recording and/or reproducing apparatus provided therewith | |
HK88094A (en) | Apparatus for optically scanning an information plane | |
AU646222B2 (en) | Method and apparatus for recording signals on a record carrier, measurement method and measurement device for use in the recording method and the recording apparatus, and record carrier. | |
EP0360144A3 (de) | Optische Speichervorrichtung und optisches Informationsverarbeitungsgerät | |
EP0269026A3 (en) | Sensor-controlled levelling device | |
EP0382502A3 (de) | Vorrichtung und Verfahren zur präzisen Handhabung eines Aufzeichnungsmediums | |
EP0067880A4 (de) | Roboter-steuersystem. | |
KR920003275A (ko) | 자기-광학 정보 캐리어 기록 및 판독장치 | |
DE3168469D1 (en) | Optical apparatus for writing and/or reading recording tracks by means of a radiation beam | |
IT1207345B (it) | Dispositivo per il controllo qualitativo di ologrammi | |
GR3020498T3 (en) | A device for supporting and moving a head for focusing a laser beam | |
US3609315A (en) | Automatic drafting control | |
US2943905A (en) | Automatic plotting apparatus and method of operation | |
SE7812636L (sv) | Optiskt instrument | |
FR2381359A1 (fr) | Procede de lecture d'une information graphique | |
EP0169561A3 (de) | Steuerungsstrategie für ein Mikrolithographie-Gerät | |
JP2711898B2 (ja) | 非接触案内型位置決めテーブル | |
ATE23489T1 (de) | Rechnergesteuerte plotteranordnung. | |
JPS6490435A (en) | Radiograph information reader | |
JPS56114177A (en) | Servo track writing device |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8327 | Change in the person/name/address of the patent owner |
Owner name: PHILIPS ELECTRONICS N.V., EINDHOVEN, NL |
|
8339 | Ceased/non-payment of the annual fee |