BE854471A - Dispositif d'exploration par voie optique de pistes d'enregistrement d'information - Google Patents
Dispositif d'exploration par voie optique de pistes d'enregistrement d'informationInfo
- Publication number
- BE854471A BE854471A BE177452A BE177452A BE854471A BE 854471 A BE854471 A BE 854471A BE 177452 A BE177452 A BE 177452A BE 177452 A BE177452 A BE 177452A BE 854471 A BE854471 A BE 854471A
- Authority
- BE
- Belgium
- Prior art keywords
- tracks
- recording information
- exploration device
- optical exploration
- optical
- 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
- G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
-
- 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
- G11B7/0925—Electromechanical actuators for lens positioning
- G11B7/0932—Details of sprung supports
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Recording Or Reproduction (AREA)
- Automatic Focus Adjustment (AREA)
- Mechanical Optical Scanning Systems (AREA)
- Optical Head (AREA)
- Mounting And Adjusting Of Optical Elements (AREA)
- Vehicle Body Suspensions (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Optical Communication System (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NLAANVRAGE7605043,A NL176315C (nl) | 1976-05-12 | 1976-05-12 | Optische aftastinrichting. |
Publications (1)
Publication Number | Publication Date |
---|---|
BE854471A true BE854471A (fr) | 1977-11-10 |
Family
ID=19826177
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE177452A BE854471A (fr) | 1976-05-12 | 1977-05-10 | Dispositif d'exploration par voie optique de pistes d'enregistrement d'information |
Country Status (25)
Country | Link |
---|---|
US (1) | US4135083A (el) |
JP (5) | JPS5836414B2 (el) |
AR (1) | AR219292A1 (el) |
AT (1) | AT355639B (el) |
AU (1) | AU506108B2 (el) |
BE (1) | BE854471A (el) |
BR (1) | BR7702984A (el) |
CA (1) | CA1094683A (el) |
CH (1) | CH621426A5 (el) |
DD (1) | DD130888A5 (el) |
DE (4) | DE2719082C2 (el) |
DK (1) | DK145867C (el) |
ES (1) | ES458637A1 (el) |
FR (1) | FR2351468B1 (el) |
GB (1) | GB1580384A (el) |
HK (1) | HK16181A (el) |
IT (1) | IT1118202B (el) |
MX (1) | MX144033A (el) |
NL (1) | NL176315C (el) |
NO (1) | NO150859C (el) |
NZ (1) | NZ184038A (el) |
PL (1) | PL115307B1 (el) |
SE (2) | SE7705334L (el) |
YU (1) | YU41297B (el) |
ZA (1) | ZA772263B (el) |
Families Citing this family (78)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5494007A (en) * | 1978-01-05 | 1979-07-25 | Olympus Optical Co Ltd | Pickup for disc recorder recorded optically with information |
FR2425782B1 (fr) * | 1978-05-10 | 1988-02-12 | Olympus Optical Co | Appareil de lecture d'informations optiques |
US4302830A (en) * | 1978-05-10 | 1981-11-24 | Olympus Optical Company Ltd. | Optical information reading-out apparatus |
JPS5542369A (en) * | 1978-09-19 | 1980-03-25 | Mitsubishi Electric Corp | Pickup controller |
GB2060927B (en) * | 1979-07-24 | 1984-02-01 | Universal Pioneer Corp | Signal reading device for optical discs |
FR2474740A1 (fr) * | 1980-01-24 | 1981-07-31 | Thomson Csf | Equipage mobile d'un lecteur enregistreur de videodisque, et lecteur enregistreur de videodisque comprenant un tel equipage |
CA1132258A (en) * | 1980-05-12 | 1982-09-21 | Herman W. Willemsen | Scanning head for an optical disc system |
NL8004380A (nl) * | 1980-07-31 | 1982-03-01 | Philips Nv | Optische inrichting voor het met een stralingsbundel inschrijven en/of uitlezen van registratiesporen. |
JPS57103131A (en) * | 1980-12-18 | 1982-06-26 | Sony Corp | Biaxial driver |
FR2497377B1 (fr) * | 1980-12-29 | 1985-06-28 | Thomson Csf | Dispositif d'exploration optique d'un support d'information |
JPS57120240A (en) * | 1981-01-16 | 1982-07-27 | Sony Corp | Optical disk player |
US4482986A (en) * | 1981-01-30 | 1984-11-13 | Sony Corporation | Objective lens mount for optical disc player |
JPS57176543A (en) * | 1981-04-20 | 1982-10-29 | Sony Corp | Optical type track scanner |
JPS57178233A (en) * | 1981-04-27 | 1982-11-02 | Sony Corp | Supporting structure of optical system |
JPS57186237A (en) * | 1981-05-12 | 1982-11-16 | Pioneer Video Corp | Crosstalk eliminating device for recorded information reproducing device |
JPS57210456A (en) * | 1981-06-22 | 1982-12-24 | Sony Corp | Objective lens device |
NL8103305A (nl) * | 1981-07-10 | 1983-02-01 | Philips Nv | Opto-elektronische inrichting voor het met een stralingsbundel inschrijven en/of uitlezen van registratiesporen. |
JPS5814757U (ja) * | 1981-07-24 | 1983-01-29 | 岩本 好秋 | ふとんのズレ防止用マツト |
JPS5868248A (ja) * | 1981-10-20 | 1983-04-23 | Toshiba Corp | 光学式情報読取装置 |
JPS5880139A (ja) * | 1981-11-04 | 1983-05-14 | Sony Corp | 光学ヘツド |
NL8105072A (nl) * | 1981-11-10 | 1983-06-01 | Philips Nv | Electro-optische inrichting. |
JPS58159684U (ja) * | 1982-04-14 | 1983-10-24 | オンキヨー株式会社 | 光学式ピツクアツプのトラツキング補正装置 |
EP0098076A1 (en) * | 1982-06-14 | 1984-01-11 | Nec Corporation | Beam access apparatus for optical disc system |
US4626679A (en) * | 1982-09-22 | 1986-12-02 | Canon Kabushiki Kaisha | Optical head and method of detecting the focus thereof |
JPS59104735A (ja) * | 1982-12-08 | 1984-06-16 | Sony Corp | 対物レンズ駆動装置 |
US4598989A (en) * | 1982-12-23 | 1986-07-08 | Konishiroku Photo Industry Co. Ltd. | Camera |
NL8204981A (nl) * | 1982-12-24 | 1984-07-16 | Philips Nv | Electrodynamische inrichting voor het transleren van een objectief. |
JPS58171731A (ja) * | 1983-02-21 | 1983-10-08 | Mitsubishi Electric Corp | デイスク再生装置 |
US4581529A (en) * | 1983-08-15 | 1986-04-08 | At&T Bell Laboratories | Read/write system for optical disc apparatus with fiber optics |
JPS6069840A (ja) * | 1983-09-22 | 1985-04-20 | Canon Inc | 情報記録又は再生装置 |
NL8303700A (nl) * | 1983-10-27 | 1985-05-17 | Philips Nv | Electro-optische inrichting. |
JPS6173248A (ja) * | 1984-09-18 | 1986-04-15 | Canon Inc | 光学的記録再生装置の対物レンズ駆動装置 |
JPS60209937A (ja) * | 1984-07-28 | 1985-10-22 | Olympus Optical Co Ltd | 光学的情報読取装置 |
JP2597973B2 (ja) * | 1984-10-02 | 1997-04-09 | 株式会社東芝 | 光学ヘツド装置 |
JPS60121544A (ja) * | 1984-10-22 | 1985-06-29 | Hitachi Ltd | 光学系走査装置 |
JPS61208641A (ja) * | 1985-03-13 | 1986-09-17 | Olympus Optical Co Ltd | 光学的情報記録再生装置 |
JPH0728589Y2 (ja) * | 1985-07-15 | 1995-06-28 | 日本コロムビア株式会社 | 光ピツクアツプ |
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 |
JP2888484B2 (ja) * | 1985-07-30 | 1999-05-10 | オプテイカル ストレツジ インターナシヨナル−ユーエス | 記録キャリア及び光データ読み書き装置 |
US4879707A (en) * | 1985-07-30 | 1989-11-07 | Laser Magnetic Storage International Company | Optical disk tracking and seeking systems specific track formats using discontinuities |
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 |
JPS6182340A (ja) * | 1985-08-24 | 1986-04-25 | Olympus Optical Co Ltd | ピツクアツプ装置 |
JPS6182338A (ja) * | 1985-08-24 | 1986-04-25 | Olympus Optical Co Ltd | ピツクアツプ装置 |
JPH0612576B2 (ja) * | 1985-08-24 | 1994-02-16 | オリンパス光学工業株式会社 | ピックアップ装置 |
JPS6187232A (ja) * | 1985-09-07 | 1986-05-02 | Olympus Optical Co Ltd | 対物レンズ支持装置 |
JPS62137732A (ja) * | 1985-12-09 | 1987-06-20 | Canon Inc | 光学系支持装置 |
CA1281815C (en) * | 1986-01-16 | 1991-03-19 | Shunzo Takahashi | Reader/writer apparatus for optical memory card |
US4956833A (en) * | 1986-03-31 | 1990-09-11 | Asahi Kogaku Kogyo Kabushiki Kaisha | Objective driving device for an optical disk apparatus |
US5001694A (en) * | 1986-05-06 | 1991-03-19 | Pencom International Corp. | Tracking and focus actuator for a holographic optical head |
US4799210A (en) * | 1986-11-05 | 1989-01-17 | Unisys Corporation | Fiber optic read/write head for an optical disk memory system |
JPS6326844A (ja) * | 1987-06-11 | 1988-02-04 | Mitsubishi Electric Corp | 光学式情報再生装置の集光手段支持装置 |
JPH01166341A (ja) * | 1987-12-23 | 1989-06-30 | Oki Electric Ind Co Ltd | 光学ヘッド |
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 |
JPH0321099A (ja) * | 1989-06-19 | 1991-01-29 | Nippon Telegr & Teleph Corp <Ntt> | 電子機器取付け構造 |
US5146441A (en) * | 1990-05-26 | 1992-09-08 | Pioneer Electronic Corporation | Supporting device of an optical pickup |
DE4134803A1 (de) * | 1991-10-22 | 1993-04-29 | Thomson Brandt Gmbh | Optische abtastvorrichtung mit einem linsenhalter |
US5790510A (en) * | 1992-11-12 | 1998-08-04 | Seiko Epson Corporation | Optical component drive device including nonparallel elastic plates |
DE4306248A1 (de) * | 1993-03-01 | 1994-09-08 | Thomson Brandt Gmbh | Kompensierende Aktuatorsteuerung |
US6850475B1 (en) | 1996-07-30 | 2005-02-01 | Seagate Technology, Llc | Single frequency laser source for optical data storage system |
US5850375A (en) * | 1996-07-30 | 1998-12-15 | Seagate Technology, Inc. | System and method using optical fibers in a data storage and retrieval system |
US6178150B1 (en) | 1996-07-30 | 2001-01-23 | Seagate Technology Inc. | Offset optics for use with optical heads |
US6034938A (en) * | 1996-07-30 | 2000-03-07 | Seagate Technology, Inc. | Data storage system having an optical processing flying head |
US6226233B1 (en) | 1996-07-30 | 2001-05-01 | Seagate Technology, Inc. | Magneto-optical system utilizing MSR media |
US5940549A (en) * | 1996-07-30 | 1999-08-17 | Seagate Technology, Incorporated | Optical system and method using optical fibers for storage and retrieval of information |
US6058094A (en) * | 1996-07-30 | 2000-05-02 | Seagate Technology Inc. | Flying magneto-optical head with a steerable mirror |
US6081499A (en) * | 1997-05-05 | 2000-06-27 | Seagate Technology, Inc. | Magneto-optical data storage system having an optical-processing flying head |
US6587421B1 (en) | 1998-03-30 | 2003-07-01 | Seagate Technology Llc | Refractive index matching means coupled to an optical fiber for eliminating spurious light |
US6298027B1 (en) | 1998-03-30 | 2001-10-02 | Seagate Technology Llc | Low-birefringence optical fiber for use in an optical data storage system |
US6574015B1 (en) | 1998-05-19 | 2003-06-03 | Seagate Technology Llc | Optical depolarizer |
US6091067A (en) * | 1998-06-02 | 2000-07-18 | Science Applications International Corporation | Scanning device using fiber optic bimorph |
US6137105A (en) | 1998-06-02 | 2000-10-24 | Science Applications International Corporation | Multiple parallel source scanning device |
US6166756A (en) * | 1998-06-02 | 2000-12-26 | Science Applications International Corporation | Multiple channel data writing device |
US6584052B1 (en) | 1998-06-02 | 2003-06-24 | Science Applications International Corporation | Method and apparatus for controlling the focus of a read/write head for an optical scanner |
US6246658B1 (en) | 1998-06-02 | 2001-06-12 | Science Applications International Corporation | Multiple channel scanning device using optoelectronic switching |
US6341118B1 (en) | 1998-06-02 | 2002-01-22 | Science Applications International Corporation | Multiple channel scanning device using oversampling and image processing to increase throughput |
GB2344188A (en) * | 1998-11-26 | 2000-05-31 | Marconi Electronic Syst Ltd | Force decoupler system for mirror on flexible mount |
US20060288359A1 (en) * | 2002-11-06 | 2006-12-21 | Koninklijke Philips Electronics N.V. | Optical disc drive apparatus, method of controlling the position of optical pickup unit, method for detecting an device for reading and/or writing of a disc |
KR101593260B1 (ko) * | 2012-06-22 | 2016-02-11 | 코오롱인더스트리 주식회사 | 고리형 올레핀 공중합체의 제조방법 |
Family Cites Families (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3391247A (en) * | 1964-01-03 | 1968-07-02 | Minnesota Mining & Mfg | Television signal recording with sampled audio recorded during horizontal intervals |
GB1153549A (en) * | 1967-09-22 | 1969-05-29 | Gauss Electrophysics Inc | Servo-Controlled Playback Means for Records |
DE2227993A1 (de) * | 1971-07-06 | 1973-02-01 | Gakken Co Ltd | Optische aufzeichnungseinheit und wiedergabeeinrichtung |
FR2174353A5 (el) * | 1972-02-29 | 1973-10-12 | Thomson Csf | |
JPS5325204B2 (el) * | 1972-03-31 | 1978-07-25 | ||
AR205243A1 (es) * | 1972-05-11 | 1976-04-21 | Philips Nv | Aparato para la lectura de un portador de grabacion reflector plano |
JPS4915443A (el) * | 1972-05-19 | 1974-02-09 | ||
FR2197495A5 (el) * | 1972-08-25 | 1974-03-22 | Thomson Csf | |
JPS49128621A (el) * | 1973-04-06 | 1974-12-10 | ||
IT1010107B (it) * | 1973-04-27 | 1977-01-10 | Thomson Brandt | Sistema di regolazione di precisio ne della posizione dei pattini de gui apparecchi di lettura di dischi flessibili e apparecchio di lettu ra comportante un siffatto sistema |
DE2337015C2 (de) * | 1973-07-20 | 1983-07-14 | Robert Bosch Gmbh, 7000 Stuttgart | Vorrichtung zur optischen Abtastung einer um eine vertikale Rotationsachse sich drehenden Platte |
JPS5429082B2 (el) * | 1973-07-31 | 1979-09-20 | ||
JPS5037404A (el) * | 1973-08-06 | 1975-04-08 | ||
US3932700A (en) * | 1974-02-04 | 1976-01-13 | Zenith Radio Corporation | Focus tracking registration for optical reproducing systems |
JPS5760693B2 (el) * | 1974-02-12 | 1982-12-21 | Sony Corp | |
NL171641C (nl) * | 1974-02-13 | 1983-04-18 | Philips Nv | Inrichting voor het uitlezen van een registratiedrager waarop informatie is aangebracht in een optisch uitleesbare structuur. |
JPS5133653A (el) * | 1974-09-10 | 1976-03-22 | Mansei Kogyo Kk | |
JPS5133603A (el) * | 1974-09-17 | 1976-03-22 | Teac Corp | |
JPS597133B2 (ja) * | 1975-05-30 | 1984-02-16 | 株式会社日立製作所 | 半導体レ−ザピツクアツプ装置 |
NL174609C (nl) * | 1975-10-15 | 1984-07-02 | Philips Nv | Volgspiegelinrichting in een optische platenspeler. |
NL178915C (nl) * | 1976-01-16 | 1986-06-02 | Philips Nv | Automatisch optisch focusseersysteem. |
NL7600479A (nl) * | 1976-01-19 | 1977-07-21 | Philips Nv | Automatisch optisch focusseersysteem. |
JPS5811692A (ja) * | 1981-06-30 | 1983-01-22 | 株式会社大三商会 | 液体蒸発減少装置 |
-
1976
- 1976-05-12 NL NLAANVRAGE7605043,A patent/NL176315C/xx not_active IP Right Cessation
-
1977
- 1977-04-13 ZA ZA00772263A patent/ZA772263B/xx unknown
- 1977-04-14 US US05/787,610 patent/US4135083A/en not_active Expired - Lifetime
- 1977-04-25 AR AR267343A patent/AR219292A1/es active
- 1977-04-29 DE DE2719082A patent/DE2719082C2/de not_active Expired
- 1977-04-29 DE DE2760266A patent/DE2760266C2/de not_active Expired
- 1977-04-29 DE DE2760265A patent/DE2760265C2/de not_active Expired
- 1977-04-29 DE DE2760264A patent/DE2760264C2/de not_active Expired
- 1977-05-09 IT IT23354/77A patent/IT1118202B/it active
- 1977-05-09 CH CH578277A patent/CH621426A5/de not_active IP Right Cessation
- 1977-05-09 BR BR7702984A patent/BR7702984A/pt unknown
- 1977-05-09 MX MX169047A patent/MX144033A/es unknown
- 1977-05-09 NO NO771618A patent/NO150859C/no unknown
- 1977-05-09 AU AU24988/77A patent/AU506108B2/en not_active Expired
- 1977-05-09 SE SE7705334D patent/SE7705334L/xx not_active Application Discontinuation
- 1977-05-09 GB GB19291/77A patent/GB1580384A/en not_active Expired
- 1977-05-09 NZ NZ184038A patent/NZ184038A/xx unknown
- 1977-05-09 DK DK201577A patent/DK145867C/da not_active IP Right Cessation
- 1977-05-09 SE SE7705334A patent/SE411264B/xx not_active IP Right Cessation
- 1977-05-10 AT AT333077A patent/AT355639B/de not_active IP Right Cessation
- 1977-05-10 DD DD7700198853A patent/DD130888A5/xx unknown
- 1977-05-10 BE BE177452A patent/BE854471A/xx not_active IP Right Cessation
- 1977-05-10 PL PL1977198012A patent/PL115307B1/pl unknown
- 1977-05-10 ES ES458637A patent/ES458637A1/es not_active Expired
- 1977-05-10 JP JP52052723A patent/JPS5836414B2/ja not_active Expired
- 1977-05-11 YU YU1193/77A patent/YU41297B/xx unknown
- 1977-05-11 CA CA278,301A patent/CA1094683A/en not_active Expired
- 1977-05-12 FR FR7714534A patent/FR2351468B1/fr not_active Expired
-
1981
- 1981-04-23 HK HK161/81A patent/HK16181A/xx unknown
-
1982
- 1982-03-27 JP JP57048191A patent/JPS57181439A/ja active Granted
- 1982-03-27 JP JP57048192A patent/JPS57181437A/ja active Granted
-
1984
- 1984-07-27 JP JP59157092A patent/JPS60253032A/ja active Granted
- 1984-07-27 JP JP59157091A patent/JPS60242526A/ja active Granted
Also Published As
Similar Documents
Publication | Publication Date | Title |
---|---|---|
BE854471A (fr) | Dispositif d'exploration par voie optique de pistes d'enregistrement d'information | |
FR2304981A1 (fr) | Dispositif d'enregistrement optique d'informations | |
FR2325987A1 (fr) | Dispositif de lecture optique d'un enregistrement | |
BE843809A (fr) | Dispositif pour la lecture d'un porte-enregistrement presentant une structure d'information reflectrice lisible par voie optique | |
FR2332577A1 (fr) | Appareil de lecture d'informations par voie optique | |
FR2422220B1 (fr) | Porteur d'enregistrement presentant une structure de phase a lire par voie optique et dispositif pour la lecture | |
BE879426A (fr) | Dispositif optique pour la lecture de l'information d'un porteur d'information en forme de disque | |
BE838982A (fr) | Dispositif pour la lecture d'un porte-enregistrement plan muni d'une structure d'information lisible par voie optique | |
BE845349A (fr) | Dispositif pour la lecture d'un disque porte-information | |
FR2347742A1 (fr) | Configurations de signaux servo et dispositif les utilisant pour la recherche et le suivi de pistes d'enregistrement | |
FR2339928A1 (fr) | Dispositif pour la lecture d'un porteur d'enregistrement presentant une structure d'information lisible par voie optique | |
FR2420182B1 (fr) | Procede, dispositif et corps porteur d'enregistrement pour l'enregistrement d'information par voie optique | |
FR2534722B1 (fr) | Dispositif servant a la lecture et/ou l'enregistrement d'information par voie optique | |
FR2349911A1 (fr) | Dispositif optique de commande pour faisceau de lecture d'un enregistrement | |
BE880545A (fr) | Dispositif pour lire par voie optique l'information d'un porteur d'information en forme d'un disque | |
FR2445580B1 (fr) | Appareil d'enregistrement optique d'informations | |
FR2504300B1 (fr) | Dispositif d'enregistrement et de lecture d'information dans des pistes d'information d'un porteur d'enregistrement optique | |
FR2509891B1 (fr) | Dispositif optique d'enregistrement-lecture sur support d'information pregrave | |
FR2420183B1 (fr) | Corps porteur d'enregistrement et porteur d'enregistrement pour de l'information optique et dispositif d'enregistrement et de lecture | |
FR2412133B1 (fr) | Appareil d'enregistrement optique de signaux sur un support d'enregistrement | |
NO784161L (no) | Optisk lese-enhet for lesing av bevegelig informasjonbaerer spesielt for lesing av videoplate | |
BE835516A (fr) | Dispositif pour la lecture d'un porte-enregistrement presentant une structure d'information optique | |
FR2540272B1 (fr) | Dispositif de lecture d'un support d'information optique | |
FR2418514B1 (fr) | Support d'enregistrement optique de l'information | |
FR2472243B1 (fr) | Dispositif d'enregistrement optique |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
RE | Patent lapsed |
Owner name: N.V. PHILIPS GLOEILAMPENFABRIEKEN Effective date: 19910531 |