Transparent digitiser

Details Transparent digitiser Transparent digitiser

2007-11-06

2007-11-06

Awad, Amr A. (Department: 2629)

Computer graphics processing and selective visual display system

Display peripheral interface input device

Touch panel

C178S018070

Reexamination Certificate

active

10649708

ABSTRACT:
A digitizer for user interaction via an object with an electronically refreshable display screen, the digitizer comprising: a transparent sensing arrangement of detectors located at said electronically refreshable display screen for detecting an electric field of said object, said detectors having outputs, and an arrangement of differential amplifiers associated with said outputs, thereby to apply differential detection between said outputs.

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