TW200732953A - Touch screen digitizing system touch screen digitizing system - Google Patents

Touch screen digitizing system touch screen digitizing system

Info

Publication number
TW200732953A
TW200732953A TW095146864A TW95146864A TW200732953A TW 200732953 A TW200732953 A TW 200732953A TW 095146864 A TW095146864 A TW 095146864A TW 95146864 A TW95146864 A TW 95146864A TW 200732953 A TW200732953 A TW 200732953A
Authority
TW
Taiwan
Prior art keywords
touch screen
digitizing system
resistive sheet
terminal
screen digitizing
Prior art date
Application number
TW095146864A
Other languages
Chinese (zh)
Other versions
TWI320541B (en
Inventor
Hung-I Chen
Original Assignee
Mediatek Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mediatek Inc filed Critical Mediatek Inc
Publication of TW200732953A publication Critical patent/TW200732953A/en
Application granted granted Critical
Publication of TWI320541B publication Critical patent/TWI320541B/en

Links

Landscapes

  • Analogue/Digital Conversion (AREA)
  • Measurement Of Resistance Or Impedance (AREA)
  • Position Input By Displaying (AREA)
  • Electronic Switches (AREA)

Abstract

A touch screen digitizing system comprising a touch screen unit and an analog to digital converter. The touch screen unit includes a first resistive sheet with opposing first and second terminals and a second resistive sheet with opposing third and fourth terminals. The first and second resistive sheets are alternatively energized through the first, second, third, and fourth terminals. The analog to digital converter has an input coupled to the third terminal when the first resistive sheet is energized and the second resistive sheet is not, and coupled to the first terminal when the second resistive sheet is energized and the first resistive sheet is not, a first reference terminal dynamically coupled to a first reference voltage, a second reference terminal dynamically coupled to the second reference voltage, and an output terminal providing digital output data.
TW95146864A 2005-12-19 2006-12-14 Touch screen digitizing system touch screen digitizing system TWI320541B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US75172905P 2005-12-19 2005-12-19

Publications (2)

Publication Number Publication Date
TW200732953A true TW200732953A (en) 2007-09-01
TWI320541B TWI320541B (en) 2010-02-11

Family

ID=38184578

Family Applications (1)

Application Number Title Priority Date Filing Date
TW95146864A TWI320541B (en) 2005-12-19 2006-12-14 Touch screen digitizing system touch screen digitizing system

Country Status (2)

Country Link
CN (1) CN100462902C (en)
TW (1) TWI320541B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8390303B2 (en) 2009-08-12 2013-03-05 Htc Corporation Method for detecting pressure on touch sensing element and electronic device using the same
TWI407360B (en) * 2009-09-23 2013-09-01 Egalax Empia Technology Inc Method and device for position detection

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102449586B (en) * 2009-06-29 2014-10-08 飞思卡尔半导体公司 Touch-screen interface circuit
JP5642500B2 (en) * 2010-07-22 2014-12-17 富士通コンポーネント株式会社 Touch panel position detection method, touch panel, touch panel initialization method

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6246394B1 (en) * 1998-06-04 2001-06-12 Burr-Brown Corporation Touch screen measurement circuit and method
KR20020080160A (en) * 2001-04-12 2002-10-23 에프디테크 주식회사 A driving circuit of a resistive touch screen
CN1700161A (en) * 2005-06-30 2005-11-23 深圳市联思精密机器有限公司 Touch control panel display equipment

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8390303B2 (en) 2009-08-12 2013-03-05 Htc Corporation Method for detecting pressure on touch sensing element and electronic device using the same
TWI400646B (en) * 2009-08-12 2013-07-01 Htc Corp Method for detecting pressure of touch sensing element and electronic device using the same
TWI407360B (en) * 2009-09-23 2013-09-01 Egalax Empia Technology Inc Method and device for position detection

Also Published As

Publication number Publication date
CN1987763A (en) 2007-06-27
TWI320541B (en) 2010-02-11
CN100462902C (en) 2009-02-18

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Legal Events

Date Code Title Description
MM4A Annulment or lapse of patent due to non-payment of fees