G11B 7 - Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation, reproducing using an optical beam at lower power; Record carriers therefor

Patents for G11B 7 - Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation, reproducing using an optical beam at lower power; Record carriers therefor (102,715)
11/1992
11/17/1992	CA2068104A1 Polymer blends for optical applications
11/17/1992	CA1310416C Magnetooptical recording medium
11/17/1992	CA1310414C Optical data storage system with wavelength selective lamination
11/17/1992	CA1310413C Data reading device for use in a disc player
11/17/1992	CA1310412C Optical record /reproduction apparatus
11/15/1992	CA2068555A1 Optically readable information media and apparatus for reading said medium
11/12/1992	WO1992019930A1 Method and apparatus for optical imaging and measurement
11/11/1992	EP0512892A1 Process for the reading of data contained in an optical disk
11/11/1992	EP0512860A2 Double-sided optical disc player
11/11/1992	EP0512859A1 Information recording and reproducing apparatus for use with an optical card
11/11/1992	EP0512852A1 Cylindrical optical record medium and driving apparatus thereof
11/11/1992	EP0512821A2 Disc recording apparatus and disc reproducing apparatus
11/11/1992	EP0512625A2 Optical scanning device
11/11/1992	EP0512616A2 Optical scanning device
11/11/1992	EP0512555A1 Optical information recording medium in which a protective layer comprises a Ni-Cr alloy layer
11/11/1992	CN1019058B Optical media reflective material
11/10/1992	US5163039 Three-dimensional optical memory system
11/10/1992	US5163036 Duty factor control circuit with variable output pulse width function
11/10/1992	US5163035 Constant linear velocity recording servo circuit for write-once type compact disk
11/10/1992	US5163034 Tracking device to effect tracking pull-in in an optical recording and reproducing apparatus by vibrating a light spot
11/10/1992	US5163033 Track access control system in rotating disc devices with eccentricity correction
11/10/1992	US5162949 Lens for an optical disc recording and/or reproducing apparatus
11/10/1992	US5162661 Position detector for maintaining a fixed distance between two objects
11/10/1992	CA1310121C Apparatus for recording and/or reproducing an optical disc
11/10/1992	CA1310119C Apparatus for recording a color television signal on a disk recording medium
11/10/1992	CA1309816C Mold for molding optical disk base
11/07/1992	CA2067959A1 Squarylium compounds, and processes and intermediates for the synthesis of these compounds
11/05/1992	DE4113842A1 Verfahren und einrichtung zur messung und bestimmung einer wegdifferenz in interferometern nach michelson Method and device for the measurement and determination of a path difference in interferometers by michelson
11/04/1992	EP0511875A2 Information recording and reproducing apparatus
11/04/1992	EP0511640A2 Molding material for optical moldings
11/04/1992	EP0511598A1 Optical recording medium
11/04/1992	EP0511381A1 Squarylium and croconylium dyes.
11/03/1992	US5161243 Tracking system for an optical recording/reproducing apparatus having a plurality of light spots
11/03/1992	US5161233 Method for recording and reproducing information, apparatus therefor and recording medium
11/03/1992	US5161150 Optical recording medium
11/03/1992	US5161148 Optical pick-up using wavelength guide with grating coupler therein
11/03/1992	US5161145 Optical disc recording apparatus
11/03/1992	US5161144 System for recording information on an optical recording medium
11/03/1992	US5161142 Disk playing apparatus for playing CLV disks
11/03/1992	US5161141 Optical disk system having a stably driven servomechanism for a laser system for reading signal tracks
11/03/1992	US5161140 Track jump control apparatus
11/03/1992	US5161139 Focusing error detecting apparatus
11/03/1992	US5161137 Optical disk apparatus with a plurality of heads
11/03/1992	US5161136 Servo error detecting method of an optical disc system
11/03/1992	US5161135 Magneto-optical disc memory apparatus including a header signal and magneto-optical signal level adjusting circuit
11/03/1992	US5161134 Method for increasing linear bit density in magneto-optical storage media
11/03/1992	US5161067 Objective lens driving apparatus for an optical recording and/or reproducing apparatus
11/03/1992	US5161063 Objectives for an optical data storage head
11/03/1992	US5161040 Optical system with aberration suppression and optical head utilizing the same
11/03/1992	US5160572 Optical memory device and apparatus for manufacturing the same
11/03/1992	US5160462 Preparing optical memory medium by laminating a thermoplastic resin layer on a thermosetting resin sheet
10/1992
10/29/1992	WO1992018978A1 Optical recording medium and its manufacturing
10/28/1992	EP0511023A1 Three dimensional optical recording medium and recording apparatus using same
10/28/1992	EP0510889A1 Cartridge for accomodating flexible optical disk
10/28/1992	EP0510834A2 Method and apparatus for accessing data recorded as linked lists
10/28/1992	EP0510750A1 Planar optical scanning head
10/28/1992	EP0510749A1 Planar optical scanning head
10/28/1992	EP0510652A1 Object lens holder and object lens driving device
10/28/1992	EP0510651A1 Information recording/reproduction apparatus
10/28/1992	EP0510284A1 Optical waveguide recording medium and apparatus for playing the same
10/28/1992	EP0510283A2 Optical pickup device
10/28/1992	EP0510214A1 Optical disc device
10/28/1992	EP0505455A4 Three laser optical disk drive system
10/28/1992	CN1065745A Tracing system and method using servo-data magnetic sensor and photolithoyraphic magnetic disc track
10/27/1992	US5159650 Optical disk apparatus for recording and reproducing ultra-high density signals
10/27/1992	US5159589 Optical recording and/or reproducing apparatus
10/27/1992	US5159588 Optical pick-up
10/27/1992	US5159587 Separation type optical pick-up device
10/27/1992	US5159586 Device for processing optical data
10/27/1992	US5159488 Optical video disc player
10/27/1992	US5159482 Coil arrangement for an optical scanner and optical scanner provided with such a coil arrangement
10/27/1992	US5159327 Synchronous signal polarity converter of video card
10/27/1992	US5159031 Sulfonated polyaniline salt compositions and uses thereof
10/27/1992	US5158859 Using beam of light to form recesses for writing, reading
10/27/1992	US5157825 Method of manufacturing a leaf spring mechanism
10/27/1992	CA2066835A1 Optical recording medium
10/27/1992	CA1309498C Electro-optical scanning device
10/27/1992	CA1309497C Track seeking using a track following loop
10/27/1992	CA1309286C Optical system with grating lens assembly
10/21/1992	EP0509671A1 An optical information recording medium
10/21/1992	EP0509597A2 Opto-electronic memory system
10/21/1992	EP0509555A2 A method of making a magneto-optic memory device
10/21/1992	EP0509526A1 Optical pickup head
10/21/1992	EP0509472A2 Method for making read-only optically readable media
10/21/1992	EP0509450A1 Optical recording medium
10/21/1992	EP0509423A1 Optical recording medium
10/21/1992	EP0509418A1 Optical memory
10/21/1992	EP0509007A1 System and method for erasing light-responsive optical disks
10/21/1992	CN1065542A Process for shortening of access time
10/20/1992	US5157650 Optical recording apparatus
10/20/1992	US5157649 Optical pickup device for optical recording/playback apparatus
10/20/1992	US5157648 Optical disc player
10/20/1992	US5157645 Optical disk unit
10/20/1992	US5157644 Optical card recording/reproducing apparatus
10/20/1992	US5157642 Optical disc recording/reproduction apparatus with improved track seeking
10/20/1992	US5157555 Apparatus for adjustable correction of spherical aberration
10/20/1992	US5157528 Devices and process for producing microfilm and microfiche records
10/20/1992	US5157513 Circuit and method for reducing the timebase correction requirements of an optical videodisc player in scan mode
10/20/1992	US5157459 Wave front aberration measuring apparatus
10/20/1992	US5157249 Miniaturized optical pick-up with high sensitivity focusing error detecting device

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