Brightpen/pad graphic device for computer inputs and the like

Details Brightpen/pad graphic device for computer inputs and the like Brightpen/pad graphic device for computer inputs and the like

1987-05-07

1990-08-14

Brier, Jeffery A.

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

340709, 340707, 382 58, G09G 500

Patent

active

049490796

ABSTRACT:
Scanning devices are used to enter graphic information into computer systems. They typically use photo-optic detectors. Digitizing devices are used to enter coordinate positions into computer systems. One technique uses styluses, either fingers or light emitters. This invention shows how the same photo-optical systems can perform both functions.

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"Input for Computer Graphics Display", by A. Spiridon, in Western Electric Technical Digest, No. 22, Apr. 1971, p. 39.

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