AU2001245936A1 - Piezoelectric identification device and applications thereof - Google Patents

Piezoelectric identification device and applications thereof

Info

Publication number
AU2001245936A1
AU2001245936A1 AU2001245936A AU4593601A AU2001245936A1 AU 2001245936 A1 AU2001245936 A1 AU 2001245936A1 AU 2001245936 A AU2001245936 A AU 2001245936A AU 4593601 A AU4593601 A AU 4593601A AU 2001245936 A1 AU2001245936 A1 AU 2001245936A1
Authority
AU
Australia
Prior art keywords
ceramic elements
piezo ceramic
finger
array
discrete
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.)
Abandoned
Application number
AU2001245936A
Inventor
Donald Edward Jones
Walter Guy Scott
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.)
Cross Match Technologies Inc
Original Assignee
Cross Match 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 Cross Match Technologies Inc filed Critical Cross Match Technologies Inc
Publication of AU2001245936A1 publication Critical patent/AU2001245936A1/en
Abandoned 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
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F18/00—Pattern recognition
    • 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
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N39/00—Integrated devices, or assemblies of multiple devices, comprising at least one piezoelectric, electrostrictive or magnetostrictive element covered by groups H10N30/00 – H10N35/00

Abstract

The present invention provides an apparatus for sensing biometric information in a finger with piezo ceramic elements. In one embodiment, the apparatus includes an array of discrete piezo ceramic elements and filler. The array of discrete piezo ceramic elements is responsive to acoustic characteristics of parts of the finger. The filler is distributed between the discrete piezo ceramic elements and provides acoustic attenuation and electric isolation between the discrete piezo ceramic elements. A protective layer can receive a ridge pattern of the finger positioned proximate to the array. Air in valleys between ridges of the ridge pattern of the finger acts as an acoustic barrier. A backing layer (air or foam) can also be provided.
AU2001245936A 2000-03-23 2001-03-23 Piezoelectric identification device and applications thereof Abandoned AU2001245936A1 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US19154700P 2000-03-23 2000-03-23
US60191547 2000-03-23
US20379900P 2000-05-12 2000-05-12
US60203799 2000-05-12
PCT/US2001/009187 WO2001071648A2 (en) 2000-03-23 2001-03-23 Piezoelectric identification device and applications thereof

Publications (1)

Publication Number Publication Date
AU2001245936A1 true AU2001245936A1 (en) 2001-10-03

Family

ID=26887155

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2001245936A Abandoned AU2001245936A1 (en) 2000-03-23 2001-03-23 Piezoelectric identification device and applications thereof

Country Status (9)

Country Link
US (5) US6720712B2 (en)
EP (1) EP1266346B1 (en)
JP (1) JP2003527906A (en)
KR (2) KR100887275B1 (en)
AT (1) ATE430341T1 (en)
AU (1) AU2001245936A1 (en)
CA (1) CA2403394C (en)
DE (1) DE60138533D1 (en)
WO (1) WO2001071648A2 (en)

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