Patent ID: 9229595
Filing Date: 2016-01-05
CPC Classification: G06F

Claim Text:
1. A touch signal scan apparatus, comprising: a drive signal supply unit electrically connected with M drive lines in a one-to-one correspondence; an electrode layer in which the M drive lines and N sense lines are arranged; N amplifiers electrically connected with different output ends of the N sense lines in a one-to-one correspondence; and a bandwidth filter electrically connected with the N amplifiers; wherein: the drive signal supply unit is configured to supply drive signals with at least two different frequencies to the M drive lines in a period of one frame, the frequencies of the drive signals supplied to two adjacent ones of the drive lines are different, and the drive signals with the at least two different frequencies are supplied to at least two of the drive lines at a same time; and wherein the bandwidth filter is configured to separate sense signals output from the N amplifiers so as to obtain the sense signals corresponding to the respective drive signals with the at least two different frequencies.