4. Computer graphics processing and selective visual display system
  5. Display peripheral interface input device
  6. Cursor mark position control device

Stephen Worthington

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Apparatus for detecting a pointer within a region of interest

Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Reexamination Certificate

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Apparatus for determining the location of a pointer within a...

Computer graphics processing and selective visual display system – Display peripheral interface input device – Cursor mark position control device
Reexamination Certificate

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Profile ID: LFUS-PAI-P-3059378

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