Inventor
COMPAAN KLAAS
7 patents
Patents
7 patentsUS4375088AFeb 22, 1983
Optically readable record carrier with track variations which provide clock and tracking signals and apparatus for recording and/or reproducing data from such a record carrier
PHILIPS CORP55 citations92
US4041530AAug 9, 1977
Video disc with phase structure
PHILIPS CORP46 citations88
US4464741AAug 7, 1984
Optical focusing-error detection device
PHILIPS CORP20 citations80
US4034403AJul 5, 1977
Apparatus for positional control of a reading head in a device for reproducing optically coded video disk recordings
PHILIPS CORP10 citations73
US4319280AMar 9, 1982
Apparatus for converting cinematographic pictures into video signals
PHILIPS CORP18 citations71
US4577101AMar 18, 1986
Shaft encoder with an optical system comprising two straight-line-generatrix surfaces
PHILIPS CORP14 citations69
US4160269AJul 3, 1979
Apparatus for optically reading a phase-modulated optical record carrier
PHILIPS CORP14 citations68