| 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) |
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| 09/01/1992 | US5144131 Device for optically scanning an information plane detecting border portions of light beam |
| 09/01/1992 | US5143979 Molding material |
| 09/01/1992 | US5143973 Moulding compositions of low double refraction |
| 09/01/1992 | US5143738 Computerized food product extrusion machine and method |
| 08/27/1992 | CA2037059A1 Three-dimensional optical data storage structure |
| 08/26/1992 | EP0500398A2 Apparatus for driving photoelectric element array |
| 08/26/1992 | EP0500286A1 Optical waveguide recording medium playing apparatus |
| 08/26/1992 | EP0500285A1 Optical waveguide recording medium playing apparatus |
| 08/26/1992 | EP0500271A2 Disc cartridge and disc recording and/or reproducing apparatus |
| 08/26/1992 | EP0500149A2 Apparatus for data recording disc playback |
| 08/26/1992 | EP0500148A2 Apparatus for data recording disc playback |
| 08/26/1992 | EP0500044A2 Method and apparatus for recording information |
| 08/26/1992 | CN1063962A Optical disk storage device |
| 08/25/1992 | US5142524 Optical recording medium |
| 08/25/1992 | US5142521 Recording/reproducing device |
| 08/25/1992 | US5142520 System for obtaining optimum focusing position in optical disc system |
| 08/25/1992 | US5142519 Optical recording medium and device for writing and reading information in and from the recording medium |
| 08/25/1992 | US5142518 Gain control system for error signal amplifier in tracking servo apparatus |
| 08/25/1992 | US5142517 Focus adjustment system for optical disk apparatus |
| 08/25/1992 | US5142516 Anti-skating control of a positioning servo system |
| 08/25/1992 | US5142515 Sector slip with address collision recovery for write once recording media |
| 08/25/1992 | US5142514 Apparatus and method for verification of data established on a record carrier during write |
| 08/25/1992 | US5142493 Optical disk employing electron trapping material as a storage medium |
| 08/25/1992 | US5142394 Twisted nematic polarizing element with a concentric circle orientation surface and optical head device incorporating the same |
| 08/25/1992 | US5141785 Recording medium |
| 08/25/1992 | US5141306 Method and system for determining the effects of exposure on recording and reproduction of optical sound records |
| 08/25/1992 | CA1306805C Optical disk drive device |
| 08/20/1992 | WO1992014249A1 Method of reading data off a rotating recording medium |
| 08/20/1992 | WO1992014248A1 Method of reducing access time |
| 08/20/1992 | WO1992014246A1 Process for reducing access time |
| 08/20/1992 | WO1992014245A1 Method for reproducing signal in optically recording medium |
| 08/20/1992 | WO1992014244A1 Method for reproducing signal in optically recording medium |
| 08/20/1992 | WO1992014243A1 Optical scanning device |
| 08/20/1992 | WO1992014242A1 Optical recording and/or replaying device |
| 08/20/1992 | WO1992014241A1 Method of reading data off a rotating disk-shaped recording medium |
| 08/20/1992 | WO1992014240A1 Track control circuit |
| 08/20/1992 | WO1992014239A1 Storage medium and apparatus and method for recovering information from such medium by oversampling |
| 08/20/1992 | WO1992013980A1 Vapour deposition |
| 08/20/1992 | DE4204122A1 Blocking faulty recording on compact disc - using buffer memory during recording that provides delay in which faults can be identified and flags set |
| 08/19/1992 | EP0499413A1 Disc and disc chucking device |
| 08/19/1992 | EP0499345A2 Optical recording medium |
| 08/19/1992 | EP0499323A2 Method for reducing access time |
| 08/19/1992 | EP0499312A1 Arrangement for measuring the reflection and/or transmission of an object |
| 08/19/1992 | EP0499295A2 Method and apparatus for data recording disc playback |
| 08/19/1992 | EP0499278A2 Method for recording sector control information on magneto-optical disk |
| 08/19/1992 | EP0499273A2 Congruent state changeable optical memory material and device |
| 08/19/1992 | EP0499122A2 Tracking control apparatus |
| 08/19/1992 | EP0346354B1 Substituted phthalocyanines |
| 08/19/1992 | CN1063772A Optical recording media and process for preparing same |
| 08/18/1992 | US5140580 Optical disk apparatus operative with optimal recording power setting |
| 08/18/1992 | US5140577 Tracking error signal generating circuit for a multichannel type optical disc player |
| 08/18/1992 | US5140576 Method of and apparatus for setting focusing control into operation |
| 08/18/1992 | US5140575 Optical disc playback device including detecting and correcting disc mount eccentricity |
| 08/18/1992 | US5140574 Read and/or write device |
| 08/18/1992 | US5140573 Optical information recording and/or reproducing apparatus provided with means for detecting on-track/off-track signal by holding peak value and bottom value |
| 08/18/1992 | US5140572 Optical pickup device having fixed and movable optical systems |
| 08/18/1992 | US5140571 Disk drive apparatus with intermittently operated servo signal processor for low power consumption |
| 08/18/1992 | US5140570 Circuit and method for searching track on cd |
| 08/18/1992 | US5140569 Magneto optical recording system with a laser mounted on a slider |
| 08/18/1992 | US5140566 Optical data recording and playback system |
| 08/18/1992 | US5140471 Apparatus for driving objective lens |
| 08/18/1992 | US5139837 Optical information medium exhibiting sharp threshold for marking and excellent cnr |
| 08/18/1992 | CA1306517C Automatic gain control device for use in an optical memory device |
| 08/13/1992 | DE4203402A1 Optically recording and erasing information on or from optical disc - varying laser beam intensity in both directions between two levels to produce local heating and cooling |
| 08/13/1992 | DE4202297A1 Optical head for disc system - is self-correcting by sensing angular tilt of optical axis to control servo unit |
| 08/13/1992 | DE4104041A1 Verfahren zum lesen von daten eines rotierenden aufzeichnungstraegers A method for reading data from a rotating aufzeichnungstraegers |
| 08/13/1992 | DE4104040A1 Pulse width modulated balancing and operation of unit - involves switched capacitor low=pass filter in control signal provision with quadrupled pulse width and period |
| 08/13/1992 | DE4104017A1 Verfahren zum lesen von daten von einem rotierenden plattenfoermigen aufzeichnungstraeger A method for reading data from a rotating record carrier plattenfoermigen |
| 08/13/1992 | DE4103974A1 Optisches aufzeichnungs- und/oder wiedergabegeraet An optical recording and / or wiedergabegeraet |
| 08/13/1992 | DE4103973A1 Compact disc recording and playback method - using decoder to identify data loss with increased speed transfer into buffer as correction |
| 08/13/1992 | DE4103949A1 Correcting sensing head angle error in optical playback device |
| 08/12/1992 | EP0498657A2 Optical recording medium, method of reproducing recorded data of optical recording medium, and system for reproducing recorded data of optical recording medium |
| 08/12/1992 | EP0498574A2 Waveform equalizer apparatus formed of neural network, and method of designing same |
| 08/12/1992 | EP0498564A2 Thermoplastic saturated norbornene group polymer composition |
| 08/12/1992 | EP0498512A2 Optical scanning device |
| 08/12/1992 | EP0498503A1 Method for the reduction of the access time |
| 08/12/1992 | EP0498246A2 Method for the correction of an error-angle |
| 08/12/1992 | EP0497898A1 Sulfonated polyaniline salt compositions, processes and uses |
| 08/12/1992 | EP0497785A1 Automatic track control. |
| 08/12/1992 | EP0401319A4 Production d'hologrammes |
| 08/12/1992 | CN1017843B Information recording medium |
| 08/12/1992 | CN1017842B Optical rcording medium nd optical recording method |
| 08/12/1992 | CN1017841B Method of recording and reproducing information |
| 08/11/1992 | US5138605 Low-profile radial access mechanism for disk recording/playback apparatus, with optical head mounted on a carriage |
| 08/11/1992 | US5138604 Optical recording method having two degrees of reflectivity and a diffraction grating or hologram formed integrally thereon and process for making it |
| 08/11/1992 | US5138603 System and method for processing optical information with tracking error compensated |
| 08/11/1992 | US5138599 Information recording medium having dummy tracks and information recording and reproducing apparatus |
| 08/11/1992 | US5138598 Optical disk having relatively wide ram tracks and relatively narrow rom tracks |
| 08/11/1992 | US5138596 Optical information recording apparatus including means for delaying servo gain by a predetermined time |
| 08/11/1992 | US5138595 Servo control circuit for optical disc apparatus |
| 08/11/1992 | US5138594 Reducing amplitude variations of optical disk readback signals and increasing reliability of track-crossing counts |
| 08/11/1992 | US5138593 Vibration control for an optical pickup actuator driving device |
| 08/11/1992 | US5138592 Optical read/write apparatus with improved tracking performance |
| 08/11/1992 | US5138572 Film exists in two stable crystal states |
| 08/11/1992 | US5138497 High speed focusing lens assembly |
| 08/11/1992 | US5138482 Light modular and recording device employing same |
| 08/11/1992 | US5138070 Laser transfer printing; opticalrecording media |
| 08/11/1992 | US5138001 Vinylphenyl compound, process for the production thereof, polymerizable composition containing same, and crosslinked polymer formed therefrom |
| 08/11/1992 | US5137991 Polyaniline compositions, processes for their preparation and uses thereof |
| 08/11/1992 | US5137964 Thermochromic recording material |