198346 ⎘
Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups - or by different subgroups of group ; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording and a beam of light for reproducing, e.g. light-induced thermomagnetic recording, Kerr effect reproducing; Disposition or mounting of transducers relative to record carriers with provision for moving the transducers for maintaining alignment or spacing relative to the carrier Servo format, e.g. prepits, guide tracks, pilot signals
Phase locking multiple clocks of different frequencies
#2Method of writing servo information on a storage medium and arrangement for writing servo information on a storage medium
#3Servo tracking using a single servo writing pass per track for multi sensors
#4OPTICAL RECORDING MEDIUM HAVING AUXILIARY INFORMATION AND REFERENCE CLOCK
#5OPTICAL RECORDING MEDIUM HAVING AUXILIARY INFORMATION AND REFERENCE CLOCK
#6Optical recording medium having auxiliary information and reference clock
#7Optical recording medium having auxiliary information and reference clock
#8Optical disk and optical recording/reproducing device
#9Megneto-optical recording device capable of changing the shapes of heating areas
#10Information recording medium, and apparatuses for reproducing, recording, and recording and reproducing thereof, and methods for reproducing, recording, and recording and reproducing thereof
#11Information recording medium having a wobbling groove structure
#12Systems and methods for recording optical information
#13Optical recording medium having auxiliary information and reference clock
#14Information recording medium, and apparatuses for reproducing, recording, and recording and reproducing thereof, and methods for reproducing, recording, and recording and reproducing thereof
#15Information recording medium having substrate with microscopic pattern and reproducing apparatus therefor
#16Information recording medium, and apparatuses for reproducing, recording, and recording and reproducing thereof, and methods for reproducing, recording, and recording and reproducing thereof
#17Information recording medium, and apparatuses for reproducing, recording, and recording and reproducing thereof, and methods for reproducing, recording, and recording and reproducing thereof
#18Information recording medium, and apparatuses for reproducing, recording, and recording and reproducing thereof, and methods for reproducing, recording, and recording and reproducing thereof
#19Information recording medium, and apparatuses for reproducing, recording, and recording and reproducing thereof, and methods for reproducing, recording, and recording and reproducing thereof
#20Information recording medium, and apparatuses for reproducing, recording, and recording and reproducing thereof, and methods for reproducing, recording, and recording and reproducing thereof
#21INFORMATION RECORDING MEDIUM HAVING SUBSTRATE WITH MICROSCOPIC PATTERN AND REPRODUCING APPARATUS THEREFOR
#22Information recording medium having a wobbling groove structure
#23Information recording medium having a wobbling groove structure
#24Information recording medium having a wobbling groove structure
#25Magnetic recording medium, and manufacturing method, manufacturing apparatus, recording and reproduction method, and recording and reproduction apparatus for the same
#26Systems and methods for recording optical information
#27Information recording medium having a wobbling groove structure
#28Information recording medium having substrate with microscopic pattern and reproducing apparatus therefor
#29Reproducing system and corresponding information recording medium having wobbled land portions
#30Producing system and corresponding information recording medium having wobbled land portions
#31Information recording medium having substrate with microscopic pattern and reproducing apparatus therefor
#32Magneto-optical recording medium
#33Optical storage medium, manufacturing method for optical storage medium, and optical storage device
#34Information recording medium having a wobbling groove structure
#35Information recording medium having a wobbling groove structure
#36Reproducing system and corresponding information recording medium having wobbled land portions
#37Reproducing system and corresponding information recording medium having wobbled land portions
#38Information recording medium having substrate with microscopic pattern and reproducing apparatus therefor
#39Information recording medium having a wobbling groove structure
#40Information recording medium having a wobbling groove structure
#41MAGNETO-OPTICAL RECORDING MEDIUM HAVING A TRANSFER CONTROL LAYER
#42Optical recording/reproducing method for multiple recording media with different recording density
#43Magneto-optical recording medium and method of manufacturing the same, substrate for magneto-optical recording medium, and mother die stamper and method of manufacturing the same
#44Systems and methods for recording optical information
#45High field contrast magnetic stampers/imprinters for contact patterning of magnetic media
#46Information recording medium having a wobbling groove structure
#47Information recording medium having a wobbling groove structure
#48Disc detection device and associated method
#49Information recording medium, and apparatuses for reproducing, recording, and recording and reproducing thereof, and methods for reproducing, recording, and recording and reproducing thereof
#50Information recording medium, and apparatuses for reproducing, recording, and recording and reproducing thereof, and methods for reproducing, recording, and recording and reproducing thereof
#51High track density super resolution mo-rom medium
#52Optical reproducing method for optical medium with aligned prepit portion
#53Optical reproducing method for optical medium with aligned prepit portion
#54Optical reproducing method for optical medium with aligned prepit portion
#55Optical reproducing method for optical medium with aligned prepit portion
#56Optical reproducing method for optical medium with aligned prepit portion
#57Optical reproducing method for optical medium with aligned prepit portion
#58Optical reproducing method for optical medium with aligned prepit portion
#59Optical reproducing method for optical medium with aligned prepit portion
#60Optical reproducing method for optical medium with aligned prepit portion
#61Optical reproducing method for optical medium with aligned prepit portion
#62Optical reproducing method for optical medium with aligned prepit portion
#63Optical reproducing method for optical medium with aligned prepit portion
#64Optical reproducing method for optical medium with aligned prepit portion
#65Optical recording method using land/groove recording
#66Optical recording method using land/groove recording
#67Optical recording medium
#68Optical disc discriminating apparatus, optical disc discriminating method, optical disc recording apparatus and optical disc reproducing apparatus
#69Magneto-optical recording medium, and method for fabricating the same
#70Magneto-optical recording medium and magneto-optical recording medium substrate manufacturing method
#71Cartridge type recording medium, associated apparatus and methodology of disc detection
#72Configuration of three-dimensional features in data recording structures
#73Devices for optical near-files second surface recording
#74Magneto-optical recording medium and magneto-optical storage device
#75DWDD-type magneto-optic recording medium including buffer regions between recording track regions and method of producing the same
#76Information recording medium having substrate with microscopic pattern and reproducing apparatus therefor
#77Optical recording medium and optical storage device
#78Optical recording and reproducing method and optical recording medium
#79Optical information recording medium
#80Optical recording apparatus
#81Magneto-optical recording medium
#82Magneto-optical recording medium
#83Optical recording medium, master for optical recording medium manufacture, recording and reproducing apparatus, and recording and reproducing method
#84Magneto-optical recording medium having a transfer control layer
#85Data storage device extending servo burst field by alternating servo field processing during writes
#86Method and apparatus for multi-channel servo demodulation