4. Radiant energy
  5. Photocells; circuits and apparatus
  6. Optical or pre-photocell system

Roopinder Singh Grewal

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Apparatus and method for sensing rotation based on multiple...

Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
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Apparatus for controlling the position of a screen pointer...

Computer graphics processing and selective visual display system – Display peripheral interface input device – Cursor mark position control device
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Apparatus for controlling the position of a screen pointer...

Image analysis – Applications – Motion or velocity measuring
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Profile ID: LFUS-PAI-P-2900699

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