Invention Grant
US08624852B2 Semiconductor device for determining whether touch electrode is touched by human body, and touch sensor using the semiconductor device
有权
用于确定触摸电极是否被人体触摸的半导体器件，以及使用该半导体器件的触摸传感器
- Patent Title: Semiconductor device for determining whether touch electrode is touched by human body, and touch sensor using the semiconductor device
- Patent Title (中): 用于确定触摸电极是否被人体触摸的半导体器件，以及使用该半导体器件的触摸传感器
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Application No.: US12731853Application Date: 2010-03-25
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Publication No.: US08624852B2Publication Date: 2014-01-07
- Inventor: Teruyuki Kogo , Kazuhiro Umemoto
- Applicant: Teruyuki Kogo , Kazuhiro Umemoto
- Applicant Address: JP Kanagawa
- Assignee: Renesas Electronics Corporation
- Current Assignee: Renesas Electronics Corporation
- Current Assignee Address: JP Kanagawa
- Agency: McDermott Will & Emery LLP
- Priority: JP2009-128976 20090528; JP2009-135857 20090605; JP2010-027688 20100210
- Main IPC: G06F3/041
- IPC: G06F3/041 ; G06F3/043 ; G09G3/36 ; G01R27/26
Abstract:
A touch sensor IC includes a switch for connecting, to an external terminal with its voltage to be sensed, a selected one of a plurality of external terminals to which a plurality of touch electrodes is connected. Only one set of two capacitors and a resistor element may therefore be provided for a plurality of touch electrodes. Thus, the number of required components is smaller as compared with a conventional sensor requiring two capacitors and a resistor element for each touch electrode.
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