Johannus L. Bakx

Method and apparatus for recording compressed variable bitrate audio information

Device and method for recording information

Write intensity calibration of a recording beam by reading a test pattern written on a buffer sector of a record carrier

Device and method for recording information on a track having preformed position information

Deriving a tracking error signal from a time difference between detector signals

Recording methods and devices for recording information on dual layer recordable disks

System for storing and reproducing information from a disc shaped information carrier

Device for scanning a disc-shaped information carrier with controlled changes in angular and linear velocities

Method and device for recording audio, a record carrier and playback device

Playback apparatus with second variation detection