EP1412765A4 - Surface capacitance sensor system using buried stimulus electrode - Google Patents

Surface capacitance sensor system using buried stimulus electrode

Info

Publication number
EP1412765A4
EP1412765A4 EP02737174A EP02737174A EP1412765A4 EP 1412765 A4 EP1412765 A4 EP 1412765A4 EP 02737174 A EP02737174 A EP 02737174A EP 02737174 A EP02737174 A EP 02737174A EP 1412765 A4 EP1412765 A4 EP 1412765A4
Authority
EP
European Patent Office
Prior art keywords
buried
sensor system
capacitance sensor
surface capacitance
stimulus electrode
Prior art date
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Withdrawn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
EP02737174A
Other languages
German (de)
French (fr)
Other versions
EP1412765A2 (en
Inventor
Thomas L Andrade
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Atrua Technologies Inc
Original Assignee
Atrua Technologies 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 Atrua Technologies Inc filed Critical Atrua Technologies Inc
Publication of EP1412765A2 publication Critical patent/EP1412765A2/en
Publication of EP1412765A4 publication Critical patent/EP1412765A4/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
    • G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
    • G06V40/12—Fingerprints or palmprints
    • G06V40/13—Sensors therefor
    • G06V40/1306—Sensors therefor non-optical, e.g. ultrasonic or capacitive sensing

Landscapes

  • Engineering & Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Theoretical Computer Science (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
EP02737174A 2001-05-22 2002-05-22 Surface capacitance sensor system using buried stimulus electrode Withdrawn EP1412765A4 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US29285801P 2001-05-22 2001-05-22
US292858P 2001-05-22
PCT/US2002/016533 WO2002095439A2 (en) 2001-05-22 2002-05-22 Surface capacitance sensor system using buried stimulus electrode

Publications (2)

Publication Number Publication Date
EP1412765A2 EP1412765A2 (en) 2004-04-28
EP1412765A4 true EP1412765A4 (en) 2008-02-06

Family

ID=23126513

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02737174A Withdrawn EP1412765A4 (en) 2001-05-22 2002-05-22 Surface capacitance sensor system using buried stimulus electrode

Country Status (5)

Country Link
EP (1) EP1412765A4 (en)
JP (1) JP4102672B2 (en)
AU (1) AU2002310124A1 (en)
TW (1) TWI225932B (en)
WO (1) WO2002095439A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8194047B2 (en) * 2009-11-16 2012-06-05 Au Optronics Corporation Multi-channel touch panel

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4353056A (en) * 1980-06-05 1982-10-05 Siemens Corporation Capacitive fingerprint sensor
US4526043A (en) * 1983-05-23 1985-07-02 At&T Bell Laboratories Conformable tactile sensor
US5010772A (en) * 1986-04-11 1991-04-30 Purdue Research Foundation Pressure mapping system with capacitive measuring pad
US5325442A (en) * 1990-05-18 1994-06-28 U.S. Philips Corporation Fingerprint sensing device and recognition system having predetermined electrode activation
EP0791899A2 (en) * 1996-01-26 1997-08-27 Harris Corporation Electric field fingerprint sensor apparatus and related methods

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5987583A (en) * 1982-11-11 1984-05-21 Sony Corp Position detector
JP3098635B2 (en) * 1992-09-30 2000-10-16 新光電気工業株式会社 Shape inspection method and shape inspection device
GB9507817D0 (en) * 1995-04-18 1995-05-31 Philips Electronics Uk Ltd Touch sensing devices and methods of making such
JP3418479B2 (en) * 1995-05-11 2003-06-23 日本電信電話株式会社 Fingerprint input device
FR2749955B1 (en) * 1996-06-14 1998-09-11 Thomson Csf FINGERPRINT READING SYSTEM
US6191593B1 (en) * 1997-12-17 2001-02-20 Stmicroelectronics, Inc. Method for the non-invasive sensing of physical matter on the detection surface of a capacitive sensor
US6317508B1 (en) * 1998-01-13 2001-11-13 Stmicroelectronics, Inc. Scanning capacitive semiconductor fingerprint detector

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4353056A (en) * 1980-06-05 1982-10-05 Siemens Corporation Capacitive fingerprint sensor
US4526043A (en) * 1983-05-23 1985-07-02 At&T Bell Laboratories Conformable tactile sensor
US5010772A (en) * 1986-04-11 1991-04-30 Purdue Research Foundation Pressure mapping system with capacitive measuring pad
US5325442A (en) * 1990-05-18 1994-06-28 U.S. Philips Corporation Fingerprint sensing device and recognition system having predetermined electrode activation
EP0791899A2 (en) * 1996-01-26 1997-08-27 Harris Corporation Electric field fingerprint sensor apparatus and related methods

Also Published As

Publication number Publication date
EP1412765A2 (en) 2004-04-28
WO2002095439A2 (en) 2002-11-28
JP2004528572A (en) 2004-09-16
JP4102672B2 (en) 2008-06-18
TWI225932B (en) 2005-01-01
AU2002310124A1 (en) 2002-12-03
WO2002095439A3 (en) 2003-05-01

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Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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17P Request for examination filed

Effective date: 20031215

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

AX Request for extension of the european patent

Extension state: AL LT LV MK RO SI

A4 Supplementary search report drawn up and despatched

Effective date: 20080109

17Q First examination report despatched

Effective date: 20090908

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20100119