JP2010263411A5 - タッチセンサシステム - Google Patents

タッチセンサシステム Download PDF

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Publication number
JP2010263411A5
JP2010263411A5 JP2009112654A JP2009112654A JP2010263411A5 JP 2010263411 A5 JP2010263411 A5 JP 2010263411A5 JP 2009112654 A JP2009112654 A JP 2009112654A JP 2009112654 A JP2009112654 A JP 2009112654A JP 2010263411 A5 JP2010263411 A5 JP 2010263411A5
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JP
Japan
Prior art keywords
touch sensor
interface unit
circuit
external terminal
microcomputer
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
JP2009112654A
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English (en)
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JP2010263411A (ja
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Publication date
Application filed filed Critical
Priority to JP2009112654A priority Critical patent/JP2010263411A/ja
Priority claimed from JP2009112654A external-priority patent/JP2010263411A/ja
Priority to US12/774,724 priority patent/US20100283759A1/en
Publication of JP2010263411A publication Critical patent/JP2010263411A/ja
Publication of JP2010263411A5 publication Critical patent/JP2010263411A5/ja
Withdrawn legal-status Critical Current

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Claims (1)

  1. マイクロコンピュータと、前記マイクロコンピュータの外部端子に容量電極が接続されたタッチセンサとを有し、
    前記マイクロコンピュータは、前記外部端子に接続された電流源回路と、前記外部端子に接続されたインタフェース部と、前記インタフェース部に接続された計数回路と、前記インタフェース部と前記計数回路を制御する中央処理装置とを有し、
    前記中央処理装置は、前記インタフェース部の出力回路によりタッチセンサの蓄積電荷を初期化した後、前記電流源回路の出力電流で前記タッチセンサに電荷を積分して前記インタフェース部の入力回路から得られる信号が反転するまでの時間を前記計数回路で取得して、前記タッチセンサへの接触を判別する、タッチセンサシステム。
JP2009112654A 2009-05-07 2009-05-07 タッチセンサシステム及びマイクロコンピュータ Withdrawn JP2010263411A (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2009112654A JP2010263411A (ja) 2009-05-07 2009-05-07 タッチセンサシステム及びマイクロコンピュータ
US12/774,724 US20100283759A1 (en) 2009-05-07 2010-05-05 Touch sensor system and microcomputer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2009112654A JP2010263411A (ja) 2009-05-07 2009-05-07 タッチセンサシステム及びマイクロコンピュータ

Publications (2)

Publication Number Publication Date
JP2010263411A JP2010263411A (ja) 2010-11-18
JP2010263411A5 true JP2010263411A5 (ja) 2012-04-12

Family

ID=43062095

Family Applications (1)

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JP2009112654A Withdrawn JP2010263411A (ja) 2009-05-07 2009-05-07 タッチセンサシステム及びマイクロコンピュータ

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US (1) US20100283759A1 (ja)
JP (1) JP2010263411A (ja)

Families Citing this family (14)

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Publication number Priority date Publication date Assignee Title
EP2464008A1 (en) * 2010-12-08 2012-06-13 Fujitsu Semiconductor Limited Sampling circuitry
US10198097B2 (en) 2011-04-26 2019-02-05 Sentons Inc. Detecting touch input force
US9189109B2 (en) 2012-07-18 2015-11-17 Sentons Inc. Detection of type of object used to provide a touch contact input
US9639213B2 (en) 2011-04-26 2017-05-02 Sentons Inc. Using multiple signals to detect touch input
US11327599B2 (en) 2011-04-26 2022-05-10 Sentons Inc. Identifying a contact type
US9287865B2 (en) * 2011-08-10 2016-03-15 Atmel Corporation Capacitive touch sensor control unit with sampling capacitors for differential integration
US11262253B2 (en) 2017-08-14 2022-03-01 Sentons Inc. Touch input detection using a piezoresistive sensor
KR101652744B1 (ko) 2011-11-18 2016-09-09 센톤스 아이엔씨. 국소형 햅틱 피드백
KR101850680B1 (ko) 2011-11-18 2018-04-20 센톤스 아이엔씨. 터치 입력 힘 검출
US9857999B2 (en) * 2015-11-09 2018-01-02 Western Digital Technologies, Inc. Data retention charge loss sensor
US10908741B2 (en) 2016-11-10 2021-02-02 Sentons Inc. Touch input detection along device sidewall
US10585522B2 (en) 2017-02-27 2020-03-10 Sentons Inc. Detection of non-touch inputs using a signature
US11580829B2 (en) 2017-08-14 2023-02-14 Sentons Inc. Dynamic feedback for haptics
KR20230093835A (ko) * 2021-12-20 2023-06-27 엘지디스플레이 주식회사 터치 센서가 구비된 투명 표시 장치

Family Cites Families (6)

* Cited by examiner, † Cited by third party
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US5294889A (en) * 1992-03-27 1994-03-15 Tandy Corporation Battery operated capacitance measurement circuit
US5406228A (en) * 1994-07-12 1995-04-11 General Instrument Ring oscillator with frequency control loop
US20030067447A1 (en) * 2001-07-09 2003-04-10 Geaghan Bernard O. Touch screen with selective touch sources
US20080036473A1 (en) * 2006-08-09 2008-02-14 Jansson Hakan K Dual-slope charging relaxation oscillator for measuring capacitance
CN101150309B (zh) * 2007-10-31 2010-12-08 启攀微电子（上海）有限公司 一种自适应电容触摸传感控制电路
US7830158B2 (en) * 2007-12-28 2010-11-09 3M Innovative Properties Company Time-sloped capacitance measuring circuits and methods

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