Algorithmic compensation system and method therefor for a touch

Details Algorithmic compensation system and method therefor for a touch Algorithmic compensation system and method therefor for a touch

1996-03-15

1999-08-17

Shankar, Vijay

Computer graphics processing and selective visual display system

Display peripheral interface input device

Touch panel

345174, 345177, 178 1801, 178 1802, 178 1803, G09G 500, G08C 2100

Patent

active

059400650

ABSTRACT:
A general method is described for producing an inexpensive touchscreen system that provides accurate positional information and compensates for manufacturing variations without complicated sensor arrangements. Utilizing a set of sensed signals that are unique to each location on the touchscreen sensor, equations for X and Y are derived via curve fitting methods. The coefficients of the equations are stored with the sensor. During touchscreen operation the coefficients are used to calculate X and Y to the desired accuracy directly and independently.

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