作者: Robert J. Miller , Federico Faggin , David Gillespie , Timothy P. Allen
DOI:
关键词:
摘要: A proximity sensor system includes a matrix array having characteristic capacitance on horizontal and vertical conductors connected to pads. The changes as function of the an object or objects matrix. change in each node both X Y directions due approach is converted set voltages directions. These are processed by circuitry develop electrial signals representative centroid profile object, i.e., its position dimensions. Noise reduction background level setting techniques inherently available architecture employed. speed cursor movement depends one display it resides.