Dual purpose handle and controller for handheld computer

Details Dual purpose handle and controller for handheld computer Dual purpose handle and controller for handheld computer

1993-01-11

1995-01-17

Oberley, Alvin E.

Computer graphics processing and selective visual display system

Display peripheral interface input device

Cursor mark position control device

345157, G09G 302

Patent

active

053829620

ABSTRACT:
A handle/controlle 3 consisting of a gripping handle of suitable shape as to conform to the hand and attached to a hand held computer 1 or a base unit 2 of the same and containing on either side a ball in socket or "cursor ball" 5L and a pressure switch or "action switch" 6L; a two position left/right switch 8. and suitable circuitry such that:

REFERENCES:
patent: 4007443 (1977-02-01), Bromberg
patent: 4458238 (1984-07-01), Learn
patent: 4739128 (1988-04-01), Grisham
patent: 5021771 (1991-06-01), Lachman
patent: 5049863 (1991-09-01), Oka
patent: 5187468 (1993-02-01), Garthwaite
patent: 5208736 (1993-05-01), Crooks
IBM Technical Disclosure Bull. 27(10B):6299-6305 Mar. 1985 "Morse/Keyboard Concept Incorporating Unique Devices . . . ".
PC Magazine, Oct. 15, 1991, p. 128 "Portable Pointing Devices".

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