发明名称 TOUCH SIGNAL SCAN APPARATUS AND TOUCH SIGNAL SCAN METHOD
摘要 A touch signal scan apparatus and a touch signal scan method are disclosed. The apparatus includes: a drive signal supply unit electrically connected with M drive lines in one-to-one correspondence, an electrode layer in which the M drive lines and N sense lines are arranged, and N amplifiers electrically connected with different output ends of the N sense lines in one-to-one correspondence. 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, and the frequencies of the drive signals supplied to two adjacent drive lines are different. The apparatus further includes a bandwidth filter electrically connected with the N amplifiers and 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.
申请公布号 US2014146009(A1) 申请公布日期 2014.05.29
申请号 US201314072676 申请日期 2013.11.05
申请人 SHANGHAI TIANMA MICRO-ELECTRONICS CO., LTD. 发明人 HUANG ZHONGSHOU
分类号 G06F3/044 主分类号 G06F3/044
代理机构 代理人
主权项
地址