AU4507879A – Method, apparatus and record carrier body for optically writing information
– Google Patents
AU4507879A – Method, apparatus and record carrier body for optically writing information
– Google Patents
Method, apparatus and record carrier body for optically writing information
Info
Publication number
AU4507879A
AU4507879A
AU45078/79A
AU4507879A
AU4507879A
AU 4507879 A
AU4507879 A
AU 4507879A
AU 45078/79 A
AU45078/79 A
AU 45078/79A
AU 4507879 A
AU4507879 A
AU 4507879A
AU 4507879 A
AU4507879 A
AU 4507879A
Authority
AU
Australia
Prior art keywords
carrier body
record carrier
writing information
optically writing
optically
Prior art date
1978-03-16
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.)
Granted
Application number
AU45078/79A
Other versions
AU535698B2
(en
Inventor
Gerrit Berend Gerritsen
Wilhelm Josef Kleuters
Johannes Jacobus Verboom
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
Priority date (The priority date 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 date listed.)
1978-03-16
Filing date
1979-03-13
Publication date
1979-09-20
1979-03-13
Application filed by Philips Gloeilampenfabrieken NV
filed
Critical
Philips Gloeilampenfabrieken NV
1979-09-20
Publication of AU4507879A
publication
Critical
patent/AU4507879A/en
1984-04-05
Application granted
granted
Critical
1984-04-05
Publication of AU535698B2
publication
Critical
patent/AU535698B2/en
1995-03-13
Anticipated expiration
legal-status
Critical
Status
Ceased
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
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
G11B7/004—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
G11B17/00—Guiding record carriers not specifically of filamentary or web form, or of supports therefor
G11B17/005—Programmed access to indexed parts of tracks of operating discs, by guiding the disc
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
G11B20/10—Digital recording or reproducing
G11B20/18—Error detection or correction; Testing, e.g. of drop-outs
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
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
G11B27/36—Monitoring, i.e. supervising the progress of recording or 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
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
G11B7/0901—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 track following only
G11B7/0904—Dithered tracking systems
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
G11B7/127—Lasers; Multiple laser arrays
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
G11B7/00451—Recording involving ablation of the recording layer
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
G11B7/00455—Recording involving reflectivity, absorption or colour changes
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
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
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
G11B7/0916—Foucault or knife-edge methods
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
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
G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
G11B7/13—Optical detectors 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
G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
G11B7/14—Heads, e.g. forming of the optical beam spot or modulation of the optical beam specially adapted to record on, or to reproduce from, more than one track simultaneously
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
G11B7/2407—Tracks or pits; Shape, structure or physical properties thereof
G11B7/24073—Tracks
G11B7/24082—Meandering
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
G11B7/26—Apparatus or processes specially adapted for the manufacture of record carriers
G11B7/261—Preparing a master, e.g. exposing photoresist, electroforming
AU45078/79A
1978-03-16
1979-03-13
Method, apparatus and record carrier body for optically writing information
Ceased
AU535698B2
(en)
Applications Claiming Priority (2)
Application Number
Priority Date
Filing Date
Title
NL7802859
1978-03-16
NLAANVRAGE7802859,A
NL187413C
(en)
1978-03-16
1978-03-16
REGISTRATION CARRIER, REGISTRATION CARRIER, METHOD FOR REGISTRATION CARRIER BODY AND DEVICE FOR CARRYING OUT A METHOD AND READING A REGISTRATED CARRIER.
Publications (2)
Publication Number
Publication Date
AU4507879A
true
AU4507879A
(en)
1979-09-20
AU535698B2
AU535698B2
(en)
1984-04-05
Family
ID=19830503
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
AU45078/79A
Ceased
AU535698B2
(en)
1978-03-16
1979-03-13
Method, apparatus and record carrier body for optically writing information
Country Status (14)
Country
Link
US
(1)
US4363116A
(en)
JP
(4)
JPS54130102A
(en)
AT
(1)
AT372798B
(en)
AU
(1)
AU535698B2
(en)
BE
(1)
BE874917A
(en)
CA
(1)
CA1147058A
(en)
CH
(2)
CH664452A5
(en)
DE
(1)
DE2909877A1
(en)
ES
(1)
ES478608A1
(en)
FR
(1)
FR2420182B1
(en)
GB
(1)
GB2016744B
(en)
IT
(1)
IT1111540B
(en)
NL
(1)
NL187413C
(en)
SE
(2)
SE439706B
(en)
Families Citing this family (180)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
ZA744836B
(en)
*
1973-08-16
1975-08-27
Hoechst Ag
Process for obtaining multicolor effects
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.
JPS54133305A
(en)
*
1978-04-07
1979-10-17
Hitachi Ltd
Information recorder
NL7811004A
(en)
*
1978-11-06
1980-05-08
Philips Nv
SYSTEM WITH WORD SYNCHRONIZATION FOR A SERIAL SIGNAL SERIES.
CA1165871A
(en)
*
1978-11-08
1984-04-17
Kornelis Bulthuis
Optically inscribable record carrier
JPS55113197A
(en)
*
1979-02-23
1980-09-01
Hitachi Ltd
Optical memory unit
NL7902363A
(en)
*
1979-03-27
1980-09-30
Philips Nv
RECORD CARRIER WITH AN OPTICALLY READABLE INFORMASTRUCTURE.
US4290122A
(en)
*
1979-05-14
1981-09-15
Xerox Corporation
Self-synchronizing clock source for optical memories
US4283777A
(en)
*
1979-05-14
1981-08-11
Xerox Corporation
Optical memory having a parallel read out
JPS56148739A
(en)
*
1980-04-16
1981-11-18
Hitachi Ltd
Optical information processing unit
NL7906576A
(en)
*
1979-09-03
1981-03-05
Philips Nv
REGISTRATION HOLDER IN WHICH INFORMATION HAS BEEN INCLUDED IN AN OPTICALLY READABLE INFORMATION STRUCTURE AND READING DEVICE THEREFOR.
NL7907180A
(en)
*
1979-09-27
1981-03-31
Philips Nv
RECORD CONTAINER IN WHICH INFORMATION HAS BEEN INCLUDED IN AN OPTICALLY READABLE INFORMATION STRUCTURE AND EQUIPMENT FOR READING IT.
NL8000121A
(en)
*
1980-01-09
1981-08-03
Philips Nv
DISC-SHAPED, OPTICALLY READABLE RECORD CARRIER AS A STORAGE MEDIUM FOR DATA INFORMATION, DEVICE FOR MANUFACTURING SUCH RECORD CARRIER, DEVICE FOR RECORDING DATA INFORMATION RECORDER AND RECORD.
NL8000123A
(en)
*
1980-01-09
1981-08-03
Philips Nv
DEVICE FOR WRITING DIGITAL INFORMATION IN A DISC-SHAPED OPTICALLY READABLE RECORD CARRIER.
NL8000124A
(en)
*
1980-01-09
1981-08-03
Philips Nv
DEVICE FOR DISPLAYING DIGITALLY-CODED INFORMATION APPLIED ON AN OPTICALLY READABLE DISC REGISTRATION CARRIER.
NL8000122A
(en)
*
1980-01-09
1981-08-03
Philips Nv
DISC-SHAPED, OPTICALLY-READABLE RECORD CARRIER AS A STORAGE MEDIUM FOR DATA INFORMATION, DEVICE FOR MANUFACTURING SUCH REGISTRATION CARRIER, DEVICE FOR RECORDING AND / OR DISPLAYING DATA INFORMATION IN C.Q. OF SUCH REGISTRATION CARRIER.
US4408314A
(en)
*
1980-02-29
1983-10-04
Tokyo Shibaura Denki Kabushiki Kaisha
Record/playback track tracking servo
JPS56163534A
(en)
*
1980-05-20
1981-12-16
Matsushita Electric Ind Co Ltd
Optical information recording carrier
JPS573233A
(en)
*
1980-06-06
1982-01-08
Toshiba Corp
Detecting method for track on optical disk
JPS5715235A
(en)
*
1980-07-03
1982-01-26
Matsushita Electric Ind Co Ltd
Manufacture of member for optical information recording and reproduction
NL8004598A
(en)
*
1980-08-14
1982-03-16
Philips Nv
METHOD FOR REGISTRATION IN, REPECTIVE READING FROM, A REGISTRATION BODY, SECTOR-ORGANIZED INFORMATION, AND DEVICE FOR IT.
US4484319A
(en)
*
1980-09-19
1984-11-20
Matsushita Electric Industrial Co., Ltd.
Apparatus for locating a track on disc-like optical information carriers
NL8006165A
(en)
*
1980-11-12
1982-06-01
Philips Nv
SYSTEM FOR TRANSFER OF DIGITAL INFORMATION, CODER FOR APPLICATION IN THAT SYSTEM, DECODER FOR APPLICATION IN THAT SYSTEM AND RECORD CARRIAGE FOR APPLICATION IN THAT SYSTEM.
JPS5784674A
(en)
*
1980-11-14
1982-05-27
Konishiroku Photo Ind Co Ltd
Recorder
JPS57103136A
(en)
*
1980-12-17
1982-06-26
Matsushita Electric Ind Co Ltd
Optical disk and optical disk device
US5119363A
(en)
*
1980-12-17
1992-06-02
Matsushita Electric Industrial Company, Ltd.
Optical disk having an index mark
JPS57103134A
(en)
*
1980-12-17
1982-06-26
Matsushita Electric Ind Co Ltd
Optical disk
JPS57130240A
(en)
*
1981-02-05
1982-08-12
Olympus Optical Co Ltd
Optical information recording and reproducing device and information recording medium for it
JPS57150144A
(en)
*
1981-03-10
1982-09-16
Matsushita Electric Ind Co Ltd
Optical recorder and reproducer
US4523304A
(en)
*
1981-04-17
1985-06-11
Matsushita Electric Industrial Co., Ltd.
Optical data recording and reproducing apparatus
FR2504713B1
(en)
*
1981-04-27
1986-04-11
Thomson Csf
ANGULAR CODED INFORMATION CARRIER DISC AND ROTATION DRIVE SYSTEM FOR SUCH A DISC
JPS57181429A
(en)
*
1981-05-01
1982-11-08
Toshiba Corp
Optical disc device
JPS58158051A
(en)
*
1982-03-15
1983-09-20
Toshiba Corp
Controller for stabilizing output of semiconductor laser oscillator
JPS57208647A
(en)
*
1981-06-18
1982-12-21
Toshiba Corp
Optical disk for recording of information
US4464567A
(en)
*
1981-06-30
1984-08-07
Storage Technology Corporation
Photoelectric information and focus detector
JPS5819744A
(en)
*
1981-07-24
1983-02-04
Sony Corp
Optical recorder and reproducer
US4497050A
(en)
*
1981-08-03
1985-01-29
U.S. Philips Corporation
Method and device for writing a data block into a record carrier body
JPS5832236A
(en)
*
1981-08-18
1983-02-25
Matsushita Electric Ind Co Ltd
Optical recorder and reproducer
JPS5857636A
(en)
*
1981-09-30
1983-04-05
Fujitsu Ltd
Tracking controlling system of optical disk
JPS5857643A
(en)
*
1981-09-30
1983-04-05
Sony Corp
Recording disk
JPS5856337U
(en)
*
1981-10-13
1983-04-16
大日本印刷株式会社
Information recording card
US4417330A
(en)
*
1981-10-15
1983-11-22
Burroughs Corporation
Optical memory system providing improved focusing control
NL8204555A
(en)
*
1981-11-25
1983-06-16
Hitachi Ltd
DEVICE FOR RECORDING AND DISPLAYING INFORMATION.
JPS58102347A
(en)
*
1981-12-11
1983-06-17
Mitsubishi Electric Corp
Optical disk record carrier
US4556964A
(en)
*
1981-12-21
1985-12-03
Burroughs Corporation
Technique for monitoring galvo angle
US4466088A
(en)
*
1981-12-21
1984-08-14
Burroughs Corporation
Galvo position sensor for track selection in optical data disk system
US4428075A
(en)
*
1981-12-21
1984-01-24
Burroughs Corporation
Methods of preformatting an optical disk
US4489406A
(en)
*
1982-02-17
1984-12-18
Burroughs Corporation
Optical memory system having a short seek capability
US4432083A
(en)
*
1982-02-17
1984-02-14
Burroughs Corporation
Optical memory system having track following
US4432082A
(en)
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1982-02-17
1984-02-14
Burroughs Corporation
Optical memory system having a long seek capability
US4435797A
(en)
*
1982-02-17
1984-03-06
Burroughs Corporation
Optical memory system having track following and seeking capabilities
FR2523349A1
(en)
*
1982-03-12
1983-09-16
Thomson Csf
METHOD AND OPTICAL DEVICE FOR GENERATING POSITION-ASSISTING SIGNALS OF A TASK OF EXPLORING THE TRACKS OF AN INFORMATION MEDIUM
FR2523347B1
(en)
*
1982-03-12
1988-11-04
Thomson Csf
PREGRAVED MOBILE INFORMATION MEDIUM AND OPTICAL TRACK TRACKING DEVICE USING SUCH A MEDIUM
FR2523345A1
(en)
*
1982-03-12
1983-09-16
Thomson Csf
METHOD AND DEVICE FOR GENERATING SYNCHRONIZATION SIGNALS IN AN OPTICAL WRITE-READING APPARATUS FOR INFORMATION MEDIUM
JPS58158038A
(en)
*
1982-03-15
1983-09-20
Toshiba Corp
Optical disc device
US4456981A
(en)
*
1982-03-19
1984-06-26
Magnetic Peripherals Inc.
Modulation system for optical recording
USRE32937E
(en)
*
1982-03-19
1989-05-30
Magnetic Peripherals, Inc.
Modulation system for optical recording
JPS58181163A
(en)
*
1982-04-16
1983-10-22
Hitachi Ltd
Controlling system of storage device
JPS58165742U
(en)
*
1982-04-27
1983-11-04
株式会社東芝
optical information storage medium
JPS58189840A
(en)
*
1982-04-30
1983-11-05
Hitachi Ltd
Optical information processor
JPS58210775A
(en)
*
1982-06-02
1983-12-08
Victor Co Of Japan Ltd
Recording and reproducing system for television video signal
US4519054A
(en)
*
1982-06-03
1985-05-21
News Log International, Inc.
Method for formatting optically encoded digital data on a substrate and the data record carrier formed thereby
US4517667A
(en)
*
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CA
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patent/CA1147058A/en
not_active
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SE
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patent/SE439706B/en
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CH
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patent/CH664452A5/en
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GB
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patent/GB2016744B/en
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AU
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patent/AU535698B2/en
not_active
Ceased
1979-03-13
CH
CH2381/79A
patent/CH648947A5/en
not_active
IP Right Cessation
1979-03-13
IT
IT20944/79A
patent/IT1111540B/en
active
1979-03-14
ES
ES478608A
patent/ES478608A1/en
not_active
Expired
1979-03-14
DE
DE19792909877
patent/DE2909877A1/en
active
Granted
1979-03-15
AT
AT0197779A
patent/AT372798B/en
not_active
IP Right Cessation
1979-03-16
BE
BE194082A
patent/BE874917A/en
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IP Right Cessation
1979-03-16
JP
JP3166079A
patent/JPS54130102A/en
active
Granted
1979-03-16
FR
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SE
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1987-01-16
JP
JP62006260A
patent/JPS62167622A/en
active
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1987-01-16
JP
JP62006262A
patent/JPS62167627A/en
active
Pending
1987-01-16
JP
JP62006261A
patent/JPS62167623A/en
active
Pending
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Publication date
CA1147058A
(en)
1983-05-24
JPS54130102A
(en)
1979-10-09
DE2909877A1
(en)
1979-09-27
US4363116A
(en)
1982-12-07
IT1111540B
(en)
1986-01-13
JPS6319934B2
(en)
1988-04-25
SE7902222L
(en)
1979-09-17
NL7802859A
(en)
1979-09-18
GB2016744B
(en)
1982-08-04
CH648947A5
(en)
1985-04-15
FR2420182A1
(en)
1979-10-12
AU535698B2
(en)
1984-04-05
SE8500720D0
(en)
1985-02-15
DE2909877C2
(en)
1987-04-16
CH664452A5
(en)
1988-02-29
JPS6333211B2
(en)
1988-07-04
NL187413C
(en)
1991-09-16
JPS62167623A
(en)
1987-07-24
SE439706B
(en)
1985-06-24
BE874917A
(en)
1979-09-17
SE455350B
(en)
1988-07-04
SE8500720L
(en)
1985-02-15
JPS62167627A
(en)
1987-07-24
FR2420182B1
(en)
1988-06-24
AT372798B
(en)
1983-11-10
NL187413B
(en)
1991-04-16
JPS62167622A
(en)
1987-07-24
IT7920944D0
(en)
1979-03-13
ES478608A1
(en)
1980-05-16
ATA197779A
(en)
1983-03-15
GB2016744A
(en)
1979-09-26
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