198028 ⎘
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; 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 Track shape, e.g. address or synchronisation information in wobbled track or sidewall
High density recording medium, recording apparatus, recording method, reproducing apparatus, and reproducing method in which synchronization patterns are recorded with a shift so that positions in a track direction do not overlap
#2Optical disc having a plurality of recording layers
#3Optical tape with an increased track pitch for improvement of tracking performance after seam
#4Optical information recording medium and optical information recording medium reproducing device
#5Optical disc having a plurality of recording layers
#6Optical information medium having multiple layers with management information areas disposed at the same distance from center
#7Optical disk recording method, optical disk apparatus, and optical disk medium
#8Optical device and optical disc recording or reproducing method for optical disc including BCA having zone format identifier
#9Phase error detector and optical disc device
#10Optical disc capable of recording address information with the same modulation on sides of adjacent grooves
#11Optical disc medium and optical disc device
#12Optical disc medium and optical disc device
#13Optical information recording medium and optical information recording medium reproducing device
#14Method for sensing the physically-recordable maximum capacity of a disc
#15Optical-information recording medium and playback apparatus
#16Optical information recording medium and optical information recording medium reproducing apparatus
#17Fast ADC for optical tape wobble signal