Point-and-draw device coordinatively driven by two gear systems

Details Point-and-draw device coordinatively driven by two gear systems Point-and-draw device coordinatively driven by two gear systems

1995-03-09

1996-09-03

Hjerpe, Richard

Computer graphics processing and selective visual display system

Display peripheral interface input device

Cursor mark position control device

345160, 345184, G09G 508

Patent

active

055528082

ABSTRACT:
A point-and-draw device of a computer includes: a X-axis and Y-axis driving gear system respectively mounted in a housing and generally orienting perpendicularly with each other, and a driving plate for driving the two gear systems slidably held in the housing having an actuating portion protruding upwardly from the driving plate through a top window formed in an upper cover of the housing, whereby upon coordinative moving of the driving plate to move the X-axis or Y-axis driving gear system, a movement pulse signal can be electronically sensed for encoding the pulse signals into the computer to be decoded and read for moving a cursor on a CRT screen of the computer corresponding to the movement of the driving plate in the housing for an effective, reliable and ergonomic manipulation of the point-and-draw device.

REFERENCES:
patent: 5012230 (1991-04-01), Yasuda
patent: 5086296 (1992-02-01), Clark
Neufeldt "Webster's New World Dictionary" 3rd College Edition.

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