Method of determining an object's position and associated appara

Details Method of determining an object's position and associated appara Method of determining an object's position and associated appara

1996-06-04

1998-07-28

Brier, Jeffery

Computer graphics processing and selective visual display system

Display peripheral interface input device

Including keyboard

345170, 345175, G06F 3023

Patent

active

057868107

ABSTRACT:
A method of determining an object's position and associated apparatus provides positional information in a form that may be conveniently communicated to a computer to calculate the object's position. In a preferred embodiment, representatively incorporated in a computer keyboard, a method of determining an object's position includes forming an optical grid of reflected beacons and detecting an obstruction of the reflected beacons. The preferred embodiment apparatus utilizes a single light source to detect an object's position in two dimensions.

REFERENCES:
patent: 4294543 (1981-10-01), Apple et al.
patent: 4420261 (1983-12-01), Barlow et al.
patent: 4553842 (1985-11-01), Griffin
patent: 4558313 (1985-12-01), Garwin et al.
patent: 4746770 (1988-05-01), McAvinney
patent: 5196835 (1993-03-01), Blue et al.
patent: 5493112 (1996-02-01), Welch
patent: 5565686 (1996-10-01), Welch
patent: 5734475 (1998-03-01), Knox et al.
Patent Abstracts of Japan, vol. 008, No. 068 (P-264) 30 Mar. 1984 JP,A,58 213 386 (Pentel KK) 12 Dec. 1983.
IBM Technical Disclosure Bulletin, vol. 014, No. 10, Mar. 1972 New York, U.S., pp. 3031-3032, XP002016084, R.L. Garvin "Scanning Light Spot for Stylus Input to a Computer Through a Tablet".

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