Touch activated controller for generating X-Y output information

Details Touch activated controller for generating X-Y output information Touch activated controller for generating X-Y output information

1982-09-13

1984-06-19

Schreyer, Stafford D.

Telegraphy

Systems

Position coordinate determination for writing

340706, G08C 2100

Patent

active

044554524

ABSTRACT:
A touch activated control unit and system provides control information representative of, and in response to, movement of a person's finger along each of two axes defined on the unit. The control system includes a touch pad as part of the control unit. Elements of the touch pad define a plurality of axes and are responsive to the proximate presence of a person's finger to provide an input in response to touching and representative of the location of the finger on each of the two axes. In this manner a touch activated controller for generating X-Y output information includes touchable traces carried on a common side of a PC board and extending in mutually normal directions. A speed scaling circuit provides improved resolution.

REFERENCES:
patent: 4221975 (1980-09-01), Ledniczki et al.

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