- 专利标题: Extended sensing multi-touch system
-
申请号: US15972410申请日: 2018-05-07
-
公开(公告)号: US11416096B2公开(公告)日: 2022-08-16
- 发明人: Kangcheng Xu , Jun Zhang
- 申请人: Texas Instruments Incorporated
- 申请人地址: US TX Dallas
- 专利权人: Texas Instruments Incorporated
- 当前专利权人: Texas Instruments Incorporated
- 当前专利权人地址: US TX Dallas
- 代理商 Brian D. Graham; Charles A. Brill; Frank D. Cimino
- 主分类号: G06F3/044
- IPC分类号: G06F3/044 ; G06F3/041
摘要:
A capacitive touch sensing device, with: (i) a logical array of capacitive buttons have a number R of rows and a number C of columns; (ii) a first node coupled to a first column in the number C of columns, the first node for receiving a first transmit voltage; (iii) a second node coupled to a second column in the number C of columns, the second node for receiving a second transmit voltage; (iv) a number of intermediate nodes between the first node and the second node, wherein each intermediate node is coupled to a respective column in the number C of columns; and (v) circuitry for applying a respective different voltage to each of the intermediate nodes in response to the first transmit voltage and the second transmit voltage.
公开/授权文献
- US20190204980A1 EXTENDED SENSING MULTI-TOUCH SYSTEM 公开/授权日:2019-07-04
信息查询