Touch panel display

Details Touch panel display Touch panel display

1991-11-06

1993-03-16

Yusko, Donald J.

Coded data generation or conversion

Bodily actuated code generator

Including keyboard or keypad

340712, 250221, 2502221, G08C 2100, G01V 904

Patent

active

051948630

ABSTRACT:
A system which can control a plurality of opto-matrix input devices. Each opto-matrix device uses multiplexed scanning of emitter/detector pairs under control of a separate computer. The output of the opto-matrix input device is analog data which is provided to the computer for conversion to digital by the computer. The computer then determines if a stylus is located in the opto-matrix field, and if so, determines the stylus location by analysis of the received data.

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Mitra; "An Introduction to Digital and Analog Integrated Circuits and Applications", 1980, pp. 124-125.
IBM TDB, vol. 29, No. 10, Mar. 1987, pp. 4537-4539.

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