Patent ID: 9069424
Filing Date: 2015-06-30
Classification: G06F

Abstract:
1. A touch panel, comprising: a plurality of scanning electrodes; a plurality of detection electrodes which intersect the plurality of scanning electrodes; and a touch panel controller configured to perform a coordinate determination procedure by: inputting a continuous drive pulse train to the plurality of scanning electrodes for each one scanning period in turns; extracting pulses at different intervals from a continuous detection pulse train detected by the plurality of detection electrodes, and for generating at least two data sequences; generating a frequency spectrum of each of the at least two data sequences; comparing a signal strength of each frequency component between the frequency spectra of the at least two data sequences, and generating a frequency spectrum in which frequency components having different strengths have been corrected; and generating a detection signal from the frequency spectrum in which high frequency components having different strengths have been connected; wherein the touch panel controller is configured so that intervals of extracting a pulse are adjustable for each of the at least two data sequences according to a frequency of a target signal to be detected.