User input device for a computer system

Details User input device for a computer system User input device for a computer system

1997-03-14

1999-06-22

Hofsass, Jeffery A.

Computer graphics processing and selective visual display system

Display peripheral interface input device

Stylus

345175, 345176, 345173, G09G 500

Patent

active

059147091

ABSTRACT:
A user input device for an electronic device is disclosed. The user input device provides positional information using a grid of light. The grid of light is produced from a light source and waveguides. The grid of light is also received and processed using waveguides and a light detector. Optionally, optics may be used to enhance the operation of the user input device. The user input device is particularly suited for use as a user input device for a computer system or the like.

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Touch-Sensitive Device for Display, IBM Technical Disclosure Bulletin, vol. 30, No. 11, Apr. 1988.

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