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Willem Gerard Opheij

Philips

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Publication

Featured researches published by Willem Gerard Opheij.

Archive | 1986

Memory card comprising an optical memory disc and microelectronic memory component, and apparatus for transferring information to and from such card

Willem Gerard Opheij; Arie Huijser; Gary Evan Thomas

Archive | 1988

Optical scanning unit with tracking error detection

Willem Gerard Opheij; Gerard E. van Rosmalen; Gerard Van Engelen

Archive | 1989

Optical record carrier with surface layer extending to the center of a substantially circular information track structure therein

Willem Gerard Opheij

Archive | 1986

Device for determining a centring error of an optical disc relative to the axis of rotation of a turntable supporting the disc

Willem Gerard Opheij

Archive | 1988

Optical record carrier scanning apparatus providing optoelectronic positioning of the scanning spot

Willem Gerard Opheij; Louis-Marie Hubert Cobben

Archive | 1991

Optical scanning device using a plurality of scanning spots

Willem Gerard Opheij; Jozef Petrus Henricus Benschop

Archive | 1981

Apparatus for recording and reading information tracks on an optical record carrier with a beam of radiation

Willem Gerard Opheij; Gerard E. van Rosmalen

Archive | 1993

PLANAR OPTICAL SCANNING HEAD HAVING DEFICIENCY-CORRECTING GRATING

Willem Gerard Opheij

Archive | 2007

Optical scanning apparatus

Willem Gerard Opheij; Louis-Marie Hubert Cobben

Archive | 1986

Card and device for the transfer of data between the card and a data processing unit

Willem Gerard Opheij; Arie Huijser; Gary Evan Thomas

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Josephus Johannes Maria Braat

Philips

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Gerard E. van Rosmalen

Philips

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Rosmalen Gerard Eduard Van

Philips

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Arie Huijser

Philips

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Gary Evan Thomas

Philips

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Ronaldus Maria Aarts

Philips

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Heidrun Steinhauser

Philips

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Henricus Mathias Marie Kessels

Philips

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Louis-Marie Hubert Cobben

Philips

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Peter Ferdinand Greve

Philips

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