JPS502415A - - Google Patents
Info
- Publication number
- JPS502415A JPS502415A JP49011369A JP1136974A JPS502415A JP S502415 A JPS502415 A JP S502415A JP 49011369 A JP49011369 A JP 49011369A JP 1136974 A JP1136974 A JP 1136974A JP S502415 A JPS502415 A JP S502415A
- Authority
- JP
- Japan
- 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.)
- Pending
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
- G11B7/125—Optical beam sources therefor, e.g. laser control circuitry specially adapted for optical storage devices; Modulators, e.g. means for controlling the size or intensity of optical spots or optical traces
- G11B7/128—Modulators
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/03—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on ceramics or electro-optical crystals, e.g. exhibiting Pockels effect or Kerr effect
- G02F1/0327—Operation of the cell; Circuit arrangements
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/16—Error detection or correction of the data by redundancy in hardware
- G06F11/1608—Error detection by comparing the output signals of redundant hardware
- G06F11/1612—Error detection by comparing the output signals of redundant hardware where the redundant component is persistent storage
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/02—Analogue recording or reproducing
- G11B20/06—Angle-modulation recording or reproducing
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/22—Signal processing not specific to the method of recording or reproducing; Circuits therefor for reducing distortions
-
- 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
- G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
-
- 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
- G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
- G11B7/0045—Recording
-
- 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
- G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
- G11B7/005—Reproducing
-
- 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
- G11B7/08547—Arrangements for positioning the light beam only without moving the head, e.g. using static electro-optical elements
-
- 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
- G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
-
- 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
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C13/00—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00
- G11C13/04—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00 using optical elements ; using other beam accessed elements, e.g. electron or ion beam
- G11C13/048—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00 using optical elements ; using other beam accessed elements, e.g. electron or ion beam using other optical storage elements
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US33356073A | 1973-02-20 | 1973-02-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS502415A true JPS502415A (en) | 1975-01-11 |
Family
ID=23303311
Family Applications (12)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP49011369A Pending JPS502415A (en) | 1973-02-20 | 1974-01-26 | |
| JP9434679A Granted JPS5525888A (en) | 1973-02-20 | 1979-07-26 | Method and device for recording information |
| JP9435079A Granted JPS5525892A (en) | 1973-02-20 | 1979-07-26 | Device for monitoring stored information in video disk and method thereof |
| JP9434779A Pending JPS5525889A (en) | 1973-02-20 | 1979-07-26 | Video information signal regeneration optical system and method thereof |
| JP9434879A Granted JPS5525890A (en) | 1973-02-20 | 1979-07-26 | Video information processor and regeneration thereof |
| JP9434979A Granted JPS5525891A (en) | 1973-02-20 | 1979-07-26 | Photo converter stabilizer in video information recording device and method thereof |
| JP57005485A Granted JPS57147140A (en) | 1973-02-20 | 1982-01-19 | Recording information monitoring apparatus |
| JP58021743A Pending JPS58161143A (en) | 1973-02-20 | 1983-02-14 | Apparatus for storing information |
| JP58021744A Pending JPS58161153A (en) | 1973-02-20 | 1983-02-14 | Information handling unit |
| JP58021742A Granted JPS58161159A (en) | 1973-02-20 | 1983-02-14 | Information processor |
| JP61120336A Pending JPS6224441A (en) | 1973-02-20 | 1986-05-27 | Recording of mark on disc |
| JP61120335A Pending JPS6224440A (en) | 1973-02-20 | 1986-05-27 | Apparatus for recording mark on disc |
Family Applications After (11)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9434679A Granted JPS5525888A (en) | 1973-02-20 | 1979-07-26 | Method and device for recording information |
| JP9435079A Granted JPS5525892A (en) | 1973-02-20 | 1979-07-26 | Device for monitoring stored information in video disk and method thereof |
| JP9434779A Pending JPS5525889A (en) | 1973-02-20 | 1979-07-26 | Video information signal regeneration optical system and method thereof |
| JP9434879A Granted JPS5525890A (en) | 1973-02-20 | 1979-07-26 | Video information processor and regeneration thereof |
| JP9434979A Granted JPS5525891A (en) | 1973-02-20 | 1979-07-26 | Photo converter stabilizer in video information recording device and method thereof |
| JP57005485A Granted JPS57147140A (en) | 1973-02-20 | 1982-01-19 | Recording information monitoring apparatus |
| JP58021743A Pending JPS58161143A (en) | 1973-02-20 | 1983-02-14 | Apparatus for storing information |
| JP58021744A Pending JPS58161153A (en) | 1973-02-20 | 1983-02-14 | Information handling unit |
| JP58021742A Granted JPS58161159A (en) | 1973-02-20 | 1983-02-14 | Information processor |
| JP61120336A Pending JPS6224441A (en) | 1973-02-20 | 1986-05-27 | Recording of mark on disc |
| JP61120335A Pending JPS6224440A (en) | 1973-02-20 | 1986-05-27 | Apparatus for recording mark on disc |
Country Status (7)
| Country | Link |
|---|---|
| JP (12) | JPS502415A (en) |
| CA (1) | CA1013854A (en) |
| DE (6) | DE2403408C3 (en) |
| FR (6) | FR2218612B1 (en) |
| GB (1) | GB1462791A (en) |
| IT (1) | IT1008245B (en) |
| NL (5) | NL7402289A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54128704A (en) * | 1978-03-27 | 1979-10-05 | Mca Disco Vision | Device for storing video information |
| JPS54128703A (en) * | 1978-03-27 | 1979-10-05 | Mca Disco Vision | Device for recording modulated electric signal |
| JPS58220247A (en) * | 1982-06-10 | 1983-12-21 | ゼロツクス・コ−ポレ−シヨン | Optical disc scanner |
| JPS61184741A (en) * | 1985-02-12 | 1986-08-18 | Fujitsu Ltd | Optical recording and reproducing device |
| JPH04364235A (en) * | 1991-11-01 | 1992-12-16 | Hitachi Ltd | Optical information recording and reproducing method |
Families Citing this family (47)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1074005A (en) * | 1975-03-10 | 1980-03-18 | James T. Russell | Recording and playback system |
| AU520835B2 (en) * | 1977-03-24 | 1982-03-04 | World Development Laboratories | Optical recording system and method |
| NL7802860A (en) * | 1978-03-16 | 1979-09-18 | Philips Nv | REGISTRATION CARRIER BODY AND REGISTRATION CARRIER FOR OPTICAL INFORMATION AND DEVICE FOR REGISTRATION AND READ OUT. |
| EP0048041A3 (en) * | 1978-03-27 | 1982-08-04 | Discovision Associates | Method and apparatus for writing a signal-information track by using a radiation beam |
| JPS54146613A (en) * | 1978-05-10 | 1979-11-16 | Hitachi Ltd | Optical head |
| DK153609C (en) * | 1978-09-22 | 1988-12-19 | Discovision Ass | PROCEDURE AND APPARATUS FOR WRITING A SIGNAL INFORMATION TRACK ON A PLATE |
| DK153610C (en) * | 1978-09-22 | 1988-12-12 | Discovision Ass | PROCEDURE FOR WRITING A TRACK OF INFORMATION ON A PLATE |
| CH636467A5 (en) * | 1978-10-17 | 1983-05-31 | Mca Disco Vision | Method and device for recording a modulated electrical signal |
| BE871326A (en) * | 1978-10-23 | 1979-04-17 | Mca Disco Vision | METHOD AND DEVICE FOR RECORDING AND REPRODUCING A VIDEO SIGNAL. |
| JPS605926B2 (en) * | 1978-11-22 | 1985-02-14 | 三菱電機株式会社 | light modulator |
| GB2040539B (en) * | 1978-12-27 | 1983-01-26 | Hitachi Ltd | Optical information recording apparatus |
| US4264986A (en) * | 1979-03-12 | 1981-04-28 | Willis Craig I | Information-recording process & apparatus |
| FR2453426A1 (en) * | 1979-04-03 | 1980-10-31 | Thomson Csf | LIGHT INTENSITY MODULATOR IN INTEGRATED OPTICS AND INTEGRATED OPTICAL CIRCUIT COMPRISING SUCH A MODULATOR |
| FR2462758A1 (en) * | 1979-08-03 | 1981-02-13 | Thomson Csf | OPTICAL DEVICE FOR ACCESSING A TRACK RUN BY AN INFORMATION CARRIER AND OPTICAL MEMORY SYSTEM COMPRISING SUCH A DEVICE |
| JPS5668935A (en) * | 1979-10-22 | 1981-06-09 | Discovision Ass | Device for recording dataasignal on movable optical recording medium |
| DE2949813A1 (en) * | 1979-12-11 | 1981-06-19 | Bts-Systementwicklungs Gmbh, 1000 Berlin | DEVICE FOR RECORDING IMAGE AND SOUND INFORMATION PRESENT IN ELECTRICAL SIGNALS ON AN IMAGE DISK |
| NL8101932A (en) * | 1981-04-21 | 1982-11-16 | Philips Nv | DEVICE FOR RECORDING AND READING INFORMATION TRACKS IN AN OPTICAL RECORD CARRIER. |
| US4574371A (en) * | 1982-02-20 | 1986-03-04 | Olympus Optical Company Limited | Apparatus for recording and reproducing information on an optical disc |
| JPS58147823A (en) * | 1982-02-25 | 1983-09-02 | Mitsubishi Electric Corp | Detector of track shift |
| CA1201010A (en) * | 1982-08-23 | 1986-02-25 | Daniel G. Murray | Flavorings for sodium chloride substitutes |
| JPS5936338A (en) * | 1982-08-24 | 1984-02-28 | Matsushita Electric Ind Co Ltd | Optical disk recording and reproducing method |
| NL8300133A (en) * | 1983-01-14 | 1984-08-01 | Philips Nv | Apparatus for registering and / or reading information using a radiation beam. |
| DE3303038C1 (en) * | 1983-01-29 | 1983-11-24 | Kernforschungszentrum Karlsruhe Gmbh, 7500 Karlsruhe | Process for operating a filter unit for purifying air or gas streams and migrating bed filter unit for carrying out the process |
| JPS59191149A (en) * | 1983-04-14 | 1984-10-30 | Sanyo Electric Co Ltd | Mechanism for controlling optical record |
| JPS59209042A (en) * | 1983-05-12 | 1984-11-27 | Yaskawa Electric Mfg Co Ltd | Manufacture of laminated core of rotary electric machine with skew |
| JPS6096157A (en) * | 1983-10-31 | 1985-05-29 | Matsushita Electric Ind Co Ltd | Rotor of squirrel-cage induction motor |
| JPS6129421A (en) * | 1984-06-15 | 1986-02-10 | Olympus Optical Co Ltd | Detection of defect of optical recording medium |
| JPS61109239A (en) * | 1984-11-01 | 1986-05-27 | 松下電工株式会社 | Contact switch gear |
| US4667256A (en) * | 1985-11-25 | 1987-05-19 | Eastman Kodak Company | Circuit for electro-optic modulators |
| JPS62252876A (en) * | 1986-04-23 | 1987-11-04 | 鹿島建設株式会社 | Refrigerator |
| JPH0614570B2 (en) * | 1987-04-28 | 1994-02-23 | シャープ株式会社 | Optical output stabilizing method and photodetector used in the method |
| JPH0262734A (en) * | 1988-08-30 | 1990-03-02 | Hitachi Ltd | Split type optical head |
| 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 |
| US5265079A (en) | 1991-02-15 | 1993-11-23 | Applied Magnetics Corporation | Seek actuator for optical recording |
| DE4030970C2 (en) * | 1990-10-01 | 1996-07-11 | Blaupunkt Werke Gmbh | Process for regulating the light output of a laser diode for reading optical storage disks and playback device therefor |
| 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 |
| US6069857A (en) | 1991-02-15 | 2000-05-30 | Discovision Associates | Optical disc system having improved circuitry for performing blank sector check on readable disc |
| 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 |
| JPH04349236A (en) * | 1991-05-27 | 1992-12-03 | Pioneer Electron Corp | Optical pick-up device |
| JPH071764U (en) * | 1993-06-11 | 1995-01-13 | ダイワ精工株式会社 | Drag force adjuster for fishing reels |
| JPH07185243A (en) * | 1993-12-24 | 1995-07-25 | Nippon Spindle Mfg Co Ltd | Dust collector |
| US5920539A (en) | 1995-01-25 | 1999-07-06 | Discovision Associates | Apparatus and method for suppression of electromagnetic emissions having a groove on an external surface for passing an electrical conductor |
| 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 |
| US5748578A (en) | 1995-01-25 | 1998-05-05 | Discovision Associates | Colpitts type oscillator having reduced ringing and improved optical disc system utilizing same |
| 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 |
| US6049518A (en) * | 1995-08-31 | 2000-04-11 | Sanyo Electric Co., Ltd. | Optical disc recording/reproducing apparatus recording/reproducing information to/from optical discs according to different standards |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3560994A (en) * | 1968-02-06 | 1971-02-02 | Bosch Gmbh Robert | Vaporizable recording medium |
Family Cites Families (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2958258A (en) * | 1953-09-21 | 1960-11-01 | Technicolor Corp | Optical projection of beam controlled object fields |
| NL243565A (en) * | 1958-08-25 | 1900-01-01 | ||
| US3283310A (en) * | 1959-08-21 | 1966-11-01 | Gen Electric | Thermoplastic film tape recorder |
| US3234326A (en) * | 1960-12-23 | 1966-02-08 | Columbia Broadcasting Syst Inc | Film recording reproducing apparatus |
| US3350503A (en) * | 1962-03-21 | 1967-10-31 | Minnesota Mining & Mfg | Electron beam recording and reproducing system |
| US3361873A (en) * | 1962-05-07 | 1968-01-02 | Minnesota Mining & Mfg | Disc recording system |
| US3365706A (en) * | 1964-04-15 | 1968-01-23 | Gilbert W. King | Photo-optical data storage and retrieval system employing error detection and error location identification components |
| US3396266A (en) * | 1964-05-25 | 1968-08-06 | Ibm | Optical information read-out system |
| US3368209A (en) * | 1964-10-22 | 1968-02-06 | Honeywell Inc | Laser actuated curie point recording and readout system |
| US3444317A (en) * | 1965-11-03 | 1969-05-13 | Minnesota Mining & Mfg | Electron beam recorder with frame rate conversion |
| US3474457A (en) * | 1967-11-13 | 1969-10-21 | Precision Instr Co | Laser recording apparatus |
| US3530258A (en) * | 1968-06-28 | 1970-09-22 | Mca Technology Inc | Video signal transducer having servo controlled flexible fiber optic track centering |
| US3657707A (en) * | 1969-03-17 | 1972-04-18 | Precision Instr Co | Laser recording system with both surface defect and data error checking |
| US3579145A (en) * | 1969-03-21 | 1971-05-18 | Bell Telephone Labor Inc | Modulator stabilization circuits |
| US3646568A (en) * | 1969-04-03 | 1972-02-29 | Rca Corp | Beam control system |
| US3696344A (en) * | 1970-02-19 | 1972-10-03 | Energy Conversion Devices Inc | Optical mass memory employing amorphous thin films |
| US3625617A (en) * | 1970-07-15 | 1971-12-07 | Honeywell Inc | Kerr effect read-out system for an optical memory |
| DE2048430B2 (en) * | 1970-10-02 | 1972-11-30 | Licentia Patent-Verwaltungs-GmbH, 6000 Prankfurt | METHOD FOR GENERATING PREFERABLY MECHANICALLY SCANABLE, RELIEF-LIKE RECESSES OR Bumps on the surface of an information carrier |
| DE2113717C3 (en) * | 1971-03-22 | 1974-01-10 | Philips Patentverwaltung Gmbh, 2000 Hamburg | Image-sound magnetic tape recorder |
| US3715740A (en) * | 1971-08-30 | 1973-02-06 | Honeywell Inc | Optical mass memory |
| US3716845A (en) * | 1972-03-09 | 1973-02-13 | Honeywell Inc | Optical memory with interferometer tracking |
| AR198680A1 (en) * | 1972-09-02 | 1974-07-15 | Philips Nv | READING DEVICE OF A RECORDING CARRIER ON WHICH INFORMATION IS RECORDED ON AT LEAST ONE TRACK |
-
1973
- 1973-12-18 CA CA188,420A patent/CA1013854A/en not_active Expired
-
1974
- 1974-01-17 FR FR7401660A patent/FR2218612B1/fr not_active Expired
- 1974-01-24 DE DE742403408A patent/DE2403408C3/en not_active Expired
- 1974-01-24 DE DE2462831A patent/DE2462831C2/en not_active Expired
- 1974-01-24 DE DE2462834A patent/DE2462834C2/en not_active Expired
- 1974-01-24 DE DE2463376A patent/DE2463376C2/en not_active Expired
- 1974-01-24 DE DE2462835A patent/DE2462835C2/en not_active Expired
- 1974-01-24 DE DE2462833A patent/DE2462833C2/en not_active Expired
- 1974-01-26 JP JP49011369A patent/JPS502415A/ja active Pending
- 1974-02-15 GB GB702174A patent/GB1462791A/en not_active Expired
- 1974-02-19 NL NL7402289A patent/NL7402289A/xx not_active Application Discontinuation
- 1974-02-19 IT IT48443/74A patent/IT1008245B/en active
-
1978
- 1978-08-29 FR FR7824956A patent/FR2399086A1/en active Granted
- 1978-08-29 FR FR7824958A patent/FR2399088A1/en active Granted
- 1978-08-29 FR FR7824959A patent/FR2399089A1/en active Granted
- 1978-08-29 FR FR7824957A patent/FR2399087A1/en active Granted
- 1978-08-29 FR FR7824960A patent/FR2399090A1/en active Granted
-
1979
- 1979-07-26 JP JP9434679A patent/JPS5525888A/en active Granted
- 1979-07-26 JP JP9435079A patent/JPS5525892A/en active Granted
- 1979-07-26 JP JP9434779A patent/JPS5525889A/en active Pending
- 1979-07-26 JP JP9434879A patent/JPS5525890A/en active Granted
- 1979-07-26 JP JP9434979A patent/JPS5525891A/en active Granted
-
1982
- 1982-01-19 JP JP57005485A patent/JPS57147140A/en active Granted
-
1983
- 1983-02-14 JP JP58021743A patent/JPS58161143A/en active Pending
- 1983-02-14 JP JP58021744A patent/JPS58161153A/en active Pending
- 1983-02-14 JP JP58021742A patent/JPS58161159A/en active Granted
-
1986
- 1986-05-27 JP JP61120336A patent/JPS6224441A/en active Pending
- 1986-05-27 JP JP61120335A patent/JPS6224440A/en active Pending
-
1988
- 1988-03-30 NL NL8800806A patent/NL8800806A/en not_active Application Discontinuation
- 1988-03-30 NL NL8800808A patent/NL8800808A/en not_active Application Discontinuation
- 1988-03-30 NL NL8800809A patent/NL8800809A/en not_active Application Discontinuation
- 1988-03-30 NL NL8800807A patent/NL8800807A/en not_active Application Discontinuation
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3560994A (en) * | 1968-02-06 | 1971-02-02 | Bosch Gmbh Robert | Vaporizable recording medium |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0323979B2 (en) * | 1978-03-27 | 1991-04-02 | Discovision Ass | |
| JPS54128703A (en) * | 1978-03-27 | 1979-10-05 | Mca Disco Vision | Device for recording modulated electric signal |
| JPS621138A (en) * | 1978-03-27 | 1987-01-07 | デイスコビジョン アソシエイツ | Disc writing of information signal |
| JPS621137A (en) * | 1978-03-27 | 1987-01-07 | デイスコビジョン アソシエイツ | Electric information signal recording apparatus |
| JPS621139A (en) * | 1978-03-27 | 1987-01-07 | デイスコビジョン アソシエイツ | Electric signal storage |
| JPS621126A (en) * | 1978-03-27 | 1987-01-07 | デイスコビジヨン アソシエイツ | Information carrier recording body |
| JPS621140A (en) * | 1978-03-27 | 1987-01-07 | ディスコビジョン アソシエイツ | Writing for information track |
| JPS54128704A (en) * | 1978-03-27 | 1979-10-05 | Mca Disco Vision | Device for storing video information |
| JPH0346893B2 (en) * | 1978-03-27 | 1991-07-17 | Discovision Ass | |
| JPH0863774A (en) * | 1978-03-27 | 1996-03-08 | Discovision Assoc | Apparatus for recording of electric information signal |
| JPS58220247A (en) * | 1982-06-10 | 1983-12-21 | ゼロツクス・コ−ポレ−シヨン | Optical disc scanner |
| JPS61184741A (en) * | 1985-02-12 | 1986-08-18 | Fujitsu Ltd | Optical recording and reproducing device |
| JPH04364235A (en) * | 1991-11-01 | 1992-12-16 | Hitachi Ltd | Optical information recording and reproducing method |