DE69618559T2 - Kapazitiver Abstandssensor, insbesondere zur Erfassung von Fingerabdrücken - Google Patents

Kapazitiver Abstandssensor, insbesondere zur Erfassung von Fingerabdrücken

Info

Publication number
DE69618559T2
DE69618559T2 DE69618559T DE69618559T DE69618559T2 DE 69618559 T2 DE69618559 T2 DE 69618559T2 DE 69618559 T DE69618559 T DE 69618559T DE 69618559 T DE69618559 T DE 69618559T DE 69618559 T2 DE69618559 T2 DE 69618559T2
Authority
DE
Germany
Prior art keywords
distance sensor
capacitive distance
capturing fingerprints
fingerprints
capturing
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.)
Expired - Lifetime
Application number
DE69618559T
Other languages
English (en)
Other versions
DE69618559D1 (de
Inventor
Marco Tartagni
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.)
Upek Inc
Original Assignee
STMicroelectronics SRL
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 STMicroelectronics SRL filed Critical STMicroelectronics SRL
Publication of DE69618559D1 publication Critical patent/DE69618559D1/de
Application granted granted Critical
Publication of DE69618559T2 publication Critical patent/DE69618559T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
    • G01B7/34—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring roughness or irregularity of surfaces
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
    • G01B7/004—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring coordinates of points
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
    • G01B7/02—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness
    • G01B7/023—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness for measuring distance between sensor and object
    • 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
DE69618559T 1996-02-14 1996-02-14 Kapazitiver Abstandssensor, insbesondere zur Erfassung von Fingerabdrücken Expired - Lifetime DE69618559T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP96830068A EP0790479B1 (de) 1996-02-14 1996-02-14 Kapazitiver Abstandssensor, insbesondere zur Erfassung von Fingerabdrücken

Publications (2)

Publication Number Publication Date
DE69618559D1 DE69618559D1 (de) 2002-02-21
DE69618559T2 true DE69618559T2 (de) 2002-08-14

Family

ID=8225810

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69618559T Expired - Lifetime DE69618559T2 (de) 1996-02-14 1996-02-14 Kapazitiver Abstandssensor, insbesondere zur Erfassung von Fingerabdrücken

Country Status (4)

Country Link
US (1) US6362633B1 (de)
EP (1) EP0790479B1 (de)
JP (1) JP3921562B2 (de)
DE (1) DE69618559T2 (de)

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* Cited by examiner, † Cited by third party
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DE10260915A1 (de) * 2002-12-20 2004-07-15 Prüf- und Forschungsinstitut Pirmasens e.V. Meßsystem zur Vermessung auch komplexer dreidimensionaler Geometrien mittels einer Vielzahl in Messtiefenrichtung beweglicher Messtaster

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Also Published As

Publication number Publication date
JP3921562B2 (ja) 2007-05-30
EP0790479A1 (de) 1997-08-20
US6362633B1 (en) 2002-03-26
JPH102704A (ja) 1998-01-06
DE69618559D1 (de) 2002-02-21
EP0790479B1 (de) 2002-01-16

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