KR100811019B1 - 압전막 지문 스캐너 - Google Patents
압전막 지문 스캐너 Download PDFInfo
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- KR100811019B1 KR100811019B1 KR1020027001696A KR20027001696A KR100811019B1 KR 100811019 B1 KR100811019 B1 KR 100811019B1 KR 1020027001696 A KR1020027001696 A KR 1020027001696A KR 20027001696 A KR20027001696 A KR 20027001696A KR 100811019 B1 KR100811019 B1 KR 100811019B1
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- 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
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- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
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- G06V40/12—Fingerprints or palmprints
- G06V40/13—Sensors therefor
- G06V40/1329—Protecting the fingerprint sensor against damage caused by the finger
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- 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
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Abstract
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Claims (17)
- 생체 측정 감지 디바이스로서,제1 도전체 세트를 포함하는 제1 도전체 그리드와;상기 제1 도전체 세트의 도전체들과 제2 도전체 세트의 도전체들이 교차하는 영역들에 픽셀 어레이 내의 픽셀들이 대응하도록, 상기 제1 도전체 세트와 직교 배열된 상기 제2 도전체 세트를 포함하는 제2 도전체 그리드; 및상기 제1 도전체 그리드와 상기 제2 도전체 그리드 사이에 배치된 압전막을 포함하고,상기 제1 도전체 그리드와 상기 제2 도전체 그리드를 통해 전기 펄스를 픽셀에 인가하고, 상기 전기 펄스의 인가 후에 상기 픽셀에서의 상기 제1 도전체 그리드와 상기 제2 도전체 그리드 양단에서 전압을 측정함으로써, 생체 측정 데이터가 생성되는 것인 생체 측정 감지 디바이스.
- 제1항에 있어서, 상기 제1 도전체 그리드상에 배치된 실드층을 더 포함하는 것인 생체 측정 감지 디바이스.
- 제2항에 있어서, 상기 제2 도전체 그리드상에 배치된 발포층을 더 포함하는 것인 생체 측정 감지 디바이스.
- 제3항에 있어서, 상기 제2 도전체 그리드와 면하는 상기 발포층의 한면과 대향하는, 상기 발포층상에 배치된 접착제층을 더 포함하는 생체 측정 감지 디바이스.
- 제1항에 있어서, 상기 생체 측정 데이터는 혈액 순환의 방향 및 속도에 관한 정보를 포함하고, 단일 반사 작용으로 검출된 상기 생체 측정 데이터는 도플러 효과를 나타내는 것인 생체 감지 디바이스.
- 압전막 지문 스캐너로서,제1 도전체 그리드와 제2 도전체 그리드가 교차하는 지점들에 픽셀들이 형성되도록 상기 제1 도전체 그리드와 상기 제2 도전체 그리드 사이에 압전막층을 포함하는 압전막 센서 어레이를 포함하고,상기 제1 도전체 그리드와 상기 제2 도전체 그리드를 통해 적어도 하나의 픽셀에 전기 펄스가 1 사이클로 인가될 때, 상기 적어도 하나의 픽셀에서의 지문골(fingerprint ridge)의 존재로 인해 다수개의 사이클에 걸쳐 링-다운(ring-down) 오실레이션을 나타내는 출력 신호가 상기 제 2 도전체 그리드로부터 출력되는 것인 압전막 지문 스캐너.
- 제6항에 있어서, 상기 압전막 센서 어레이는 지문 이미지를 스캔하고 캡쳐하는 것인 압전막 지문 스캐너.
- 제6항에 있어서, 상기 제1 도전체 그리드와 상기 제2 도전체 그리드는 평행한 전기 도전성 라인들의 행들을 포함하는 것인 압전막 지문 스캐너.
- 제6항에 있어서, 상기 압전막 센서 어레이는 상기 제1 도전체 그리드 상의 실드층과, 상기 제2 도전체 그리드 상의 발포판을 더 포함하는 것인 압전막 지문 스캐너.
- 제9항에 있어서, 상기 실드층과 상기 발포판은, 제거가능한 접착제 재료에 의해 상기 제1 도전체 그리드 및 상기 제2 도전체 그리드 상에 각각 배치되는 것인 압전막 지문 스캐너.
- 압전막 지문 스캐너로서,오실레이션 신호를 발생하는 오실레이터와;상기 오실레이터에 연결되며, 상기 오실레이터에 의해 발생된 상기 오실레이션 신호의 사이클을 계수(count)하는 게이트 카운터와;상기 게이트 카운터와 각각의 행 멀티플렉서 및 열 멀티플렉서에 연결되며, 상기 게이트 카운터에 응답하여 상기 행 멀티플렉서 및 열 멀티플렉서를 제어하는 컨트롤러와;상기 게이트 카운터와 상기 행 멀티플렉서 사이에 연결되며, 상기 오실레이션 신호의 1 사이클의 입력 펄스를 상기 행 멀티플렉서에 전달하는 펄서(pulser)와;상기 행 멀티플렉서에 연결된 제1 도전체 그리드와, 상기 열 멀티플렉서에 연결된 제2 도전체 그리드를 포함하는 압전막 센서 어레이 - 상기 제1 도전체 그리드와 상기 제2 도전체 그리드는 상기 압전막의 제1 면과 제2 면상에 각각 배치됨 - 와;상기 게이트 카운터와 상기 열 멀티플렉서에 연결되고, 상기 행 멀티플렉서 및 열 멀티플렉서에 의해 선택되는 상기 압전막 센서 어레이의 픽셀 또는 픽셀군에서의 전압을 검출하는 검출기를 포함하는 압전막 지문 스캐너.
- 제11항에 있어서, 메모리 컨트롤러 유닛으로부터 2진 검출된 픽셀값과 회색조(gray scale) 중 적어도 하나를 저장하는 이미지 메모리를 더 포함하고, 상기 메모리 컨트롤러 유닛은 상기 이미지 메모리와 상기 검출기 사이에 연결되는 것인 압전막 지문 스캐너.
- 제11항에 있어서, 상기 오실레이터 유닛은 30 ㎒의 오실레이션 신호를 발생하는 것인 압전막 지문 스캐너.
- 제11항에 있어서, 상기 게이트 카운터는, 입력 펄스를 상기 행 멀티플렉서에 전달하도록 상기 펄서를 초기화하는 것인 압전막 지문 스캐너.
- 제11항에 있어서, 손가락끝 골에서의 반사 작용 검출은, 상기 오실레이션 신호의 다수개의 사이클에 거쳐 링-다운 오실레이션을 나타내는 것인 압전막 지문 스캐너.
- 압전막 센서에서 지문 이미지를 캡쳐하는 방법으로서,(1) 발생된 오실레이션 신호를 게이트 카운터에 인가하는 단계와;(2) 초기 픽셀과 픽셀군 중 적어도 하나를 검출하기 위해 압전막 센서 어레이를 스위치하는 단계와;(3) 상기 게이트 카운터에 응답하여 복수개의 멀티플렉서 중 하나에 입력 펄스를 보내도록 펄서를 초기화하는 단계와;(4) 상기 필셀에서의 신호를 검출하기 위해, 상기 입력 펄스를 상기 픽셀 및 픽셀군 중 하나에 인가한 후 다수개의 사이클을 대기하는 단계와;(5) 검출기에서 출력 필터링된 전압을 회색조와 이진 픽셀 중 하나로서 값을 구하는(evaluate) 단계와;(6) 상기 회색조와 이진 픽셀값 중 하나를 이미지 메모리에 저장하는 단계를 포함하는 지문 이미지 캡쳐 방법.
- 손가락의 존재를 검출하고, 압전막 센서 어레이에서 순간 초전기(pyroelectric) 효과를 이용하여 지문을 스캔하는 방법으로서,(1) 상기 손가락의 검출을 나타내는 신호를 발생하는 단계; 및(2) 상기 지문의 이미지를 스캔 및 캡쳐하기 위해 지문 스캐너를 초기화하는 단계를 포함하는 손가락 검출 및 지문 스캔 방법.
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US14749799P | 1999-08-09 | 1999-08-09 | |
US60/147,497 | 1999-08-09 |
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US (2) | US7236616B1 (ko) |
EP (1) | EP1207786B1 (ko) |
JP (1) | JP4578041B2 (ko) |
KR (1) | KR100811019B1 (ko) |
AT (1) | ATE444709T1 (ko) |
AU (1) | AU6531200A (ko) |
DE (1) | DE60043112D1 (ko) |
WO (1) | WO2001010296A2 (ko) |
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- 2000-08-09 DE DE60043112T patent/DE60043112D1/de not_active Expired - Lifetime
- 2000-08-09 AT AT00952653T patent/ATE444709T1/de not_active IP Right Cessation
- 2000-08-09 US US10/049,100 patent/US7236616B1/en not_active Expired - Lifetime
- 2000-08-09 AU AU65312/00A patent/AU6531200A/en not_active Abandoned
- 2000-08-09 EP EP00952653A patent/EP1207786B1/en not_active Expired - Lifetime
- 2000-08-09 JP JP2001514826A patent/JP4578041B2/ja not_active Expired - Fee Related
- 2000-08-09 WO PCT/US2000/021658 patent/WO2001010296A2/en active Application Filing
- 2000-08-09 KR KR1020027001696A patent/KR100811019B1/ko active IP Right Grant
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2007
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Patent Citations (2)
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US5515738A (en) | 1993-10-19 | 1996-05-14 | Enix Corporation | Piezoelectric surface pressure input panel |
US5844287A (en) | 1995-10-17 | 1998-12-01 | France Telecom | Monolithic sensor of fingerprints |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101288178B1 (ko) * | 2011-11-30 | 2013-07-19 | 삼성전기주식회사 | 지문 인식 센서 및 지문 인식 방법 |
US9977943B2 (en) | 2016-03-11 | 2018-05-22 | Befs Co., Ltd | Biological information recognition apparatus and scanning method of the biological information recognition apparatus |
Also Published As
Publication number | Publication date |
---|---|
WO2001010296A2 (en) | 2001-02-15 |
KR20020081579A (ko) | 2002-10-28 |
ATE444709T1 (de) | 2009-10-15 |
DE60043112D1 (de) | 2009-11-19 |
JP2003506693A (ja) | 2003-02-18 |
US7236616B1 (en) | 2007-06-26 |
US20080175450A1 (en) | 2008-07-24 |
WO2001010296A3 (en) | 2001-10-11 |
EP1207786A2 (en) | 2002-05-29 |
AU6531200A (en) | 2001-03-05 |
JP4578041B2 (ja) | 2010-11-10 |
EP1207786B1 (en) | 2009-10-07 |
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