ES2173760T3 - Procedimiento para la deteccion de capacitiva de imagenes. - Google Patents
Procedimiento para la deteccion de capacitiva de imagenes.Info
- Publication number
- ES2173760T3 ES2173760T3 ES99952375T ES99952375T ES2173760T3 ES 2173760 T3 ES2173760 T3 ES 2173760T3 ES 99952375 T ES99952375 T ES 99952375T ES 99952375 T ES99952375 T ES 99952375T ES 2173760 T3 ES2173760 T3 ES 2173760T3
- Authority
- ES
- Spain
- Prior art keywords
- image
- conductor
- point
- measurement
- conductors
- 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
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; 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)
- Image Input (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
- Transforming Light Signals Into Electric Signals (AREA)
- Control Or Security For Electrophotography (AREA)
- Analysing Materials By The Use Of Radiation (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
- Measurement Of Radiation (AREA)
- Collating Specific Patterns (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
- Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
Abstract
Procedimiento para la detección capacitiva de imágenes, en el que: a) una superficie (1) a detectar como imagen es descompuesta en forma de retículo en puntos de la imagen, a los que se asocia una disposición de conductores eléctricos, que comprenden al menos para cada punto de la imagen un conductor de medición (2) y un conductor blindado (7, 8), y b) la superficie (1) a detectar como imagen está dispuesta frente a los conductores de medición, de manera que entre los puntos de la imagen y los conductores de medición (2) está presente, en cada caso, una capacidad que depende del punto respectivo de la imagen, c) en cada punto de la imagen, en cada caso, el conductor de medición (2) y el conductor blindado (7, 8) están conectados con el mismo potencial eléctrico y son separados de nuevo, d) en cada punto de la imagen, una carga presente sobre el conductor de medición (2) es descargada sobre un condensador colector (CS) respectivo, siendo compensada al mismo tiempo una diferencia de potencial que aparece entre el conductor de medición (2) y el conductor blindado (7, 8), y e) se repiten las etapas c y d hasta que las cargas acumuladas sobre los condensadores colectores (CS) presentan al menos un valor que está predeterminado como suficiente para una medición especial de cada condensador colector.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19836770A DE19836770C1 (de) | 1998-08-13 | 1998-08-13 | Verfahren zur kapazitiven Bilderfassung |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES2173760T3 true ES2173760T3 (es) | 2002-10-16 |
Family
ID=7877459
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES99952375T Expired - Lifetime ES2173760T3 (es) | 1998-08-13 | 1999-08-12 | Procedimiento para la deteccion de capacitiva de imagenes. |
Country Status (13)
| Country | Link |
|---|---|
| US (1) | US6365888B2 (es) |
| EP (1) | EP1110169B1 (es) |
| JP (1) | JP3482190B2 (es) |
| KR (1) | KR100416445B1 (es) |
| CN (1) | CN1134746C (es) |
| AT (1) | ATE214179T1 (es) |
| BR (1) | BR9912939A (es) |
| DE (2) | DE19836770C1 (es) |
| ES (1) | ES2173760T3 (es) |
| MX (1) | MXPA01001551A (es) |
| RU (1) | RU2192665C1 (es) |
| UA (1) | UA55554C2 (es) |
| WO (1) | WO2000010205A2 (es) |
Families Citing this family (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3371095B2 (ja) | 1999-03-16 | 2003-01-27 | 日本電信電話株式会社 | 表面形状認識用センサ |
| DE10021501C1 (de) * | 2000-05-03 | 2001-10-31 | Siemens Ag | Aktivierung eines Fingertip-Sensors |
| US6665428B1 (en) * | 2000-08-28 | 2003-12-16 | Stmicroelectronics, Inc. | Resistive finger detection for fingerprint sensor |
| US6501284B1 (en) * | 2000-08-28 | 2002-12-31 | Stmicroelectronics, Inc. | Capacitive finger detection for fingerprint sensor |
| DE10110724A1 (de) * | 2001-03-06 | 2002-09-26 | Infineon Technologies Ag | Fingerabdrucksensor mit Potentialmodulation des ESD-Schutzgitters |
| US6525547B2 (en) * | 2001-04-17 | 2003-02-25 | Sentronics Corporation | Capacitive two dimensional sensor |
| WO2002089038A2 (en) | 2001-04-27 | 2002-11-07 | Atrua Technologies, Inc. | Capacitive sensor system with improved capacitance measuring sensitivity |
| US7259573B2 (en) | 2001-05-22 | 2007-08-21 | Atrua Technologies, Inc. | Surface capacitance sensor system using buried stimulus electrode |
| JP2005516377A (ja) * | 2001-05-22 | 2005-06-02 | アトルア テクノロジーズ インコーポレイテッド | 集積回路センサのための改善された接続組立体 |
| TW583592B (en) * | 2002-04-03 | 2004-04-11 | Lightuning Tech Inc | Capacitive fingerprint sensor |
| KR100473383B1 (ko) * | 2002-07-19 | 2005-03-10 | 매그나칩 반도체 유한회사 | 정전용량식 지문감지센서의 단위화소 및 그를 이용한지문감지장치 |
| DE10260186B3 (de) * | 2002-12-20 | 2004-06-24 | Infineon Technologies Ag | Biometrischer Sensor |
| KR100943271B1 (ko) * | 2003-05-06 | 2010-02-23 | 삼성전자주식회사 | 지문 인식신호 처리장치 |
| DE10350410A1 (de) * | 2003-10-28 | 2005-01-20 | Infineon Technologies Ag | Fingerabdrucksensor mit Sensorschaltung zur Erfassung eines Messparameters |
| DE102005024992B4 (de) * | 2005-06-01 | 2007-02-08 | Heidelberger Druckmaschinen Ag | Verfahren und Vorrichtung zum Fördern eines Bogens durch eine drucktechnische Maschine |
| DE102007003887A1 (de) * | 2007-01-19 | 2008-07-24 | Endress + Hauser Gmbh + Co. Kg | Verfahren zur Bedienung einer Vorrichtung zur kapazitiven Bestimmung und/oder Überwachung einer Prozessgröße |
| WO2015106391A1 (zh) * | 2014-01-14 | 2015-07-23 | 敦泰科技有限公司 | 电场式指纹识别装置及其状态控制方法和假体识别方法 |
| US9152841B1 (en) * | 2014-03-24 | 2015-10-06 | Fingerprint Cards Ab | Capacitive fingerprint sensor with improved sensing element |
| US10004432B2 (en) | 2015-09-01 | 2018-06-26 | Qualcomm Incorporated | Pixel receiver with capacitance cancellation for ultrasonic imaging apparatus |
| US9753598B2 (en) * | 2015-12-30 | 2017-09-05 | Image Match Design Inc. | Sensing device |
| KR101886034B1 (ko) * | 2017-06-09 | 2018-09-07 | 주식회사 센소니아 | 성능이 강화되는 지문 인식 시스템 및 이에 포함되는 누적 측정 회로 |
| US10650214B2 (en) | 2018-04-24 | 2020-05-12 | Image Match Design Inc. | Fingerprint sensor and method of fingerprint detection |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4162481A (en) * | 1976-12-22 | 1979-07-24 | Recognition Equipment Incorporated | Adaptive correlator for video processing |
| US4290052A (en) * | 1979-10-26 | 1981-09-15 | General Electric Company | Capacitive touch entry apparatus having high degree of personal safety |
| GB2244164A (en) * | 1990-05-18 | 1991-11-20 | Philips Electronic Associated | Fingerprint sensing |
| US5489888A (en) * | 1990-11-07 | 1996-02-06 | Precitec Gmbh | Sensor system for contactless distance measuring |
| US5963679A (en) * | 1996-01-26 | 1999-10-05 | Harris Corporation | Electric field fingerprint sensor apparatus and related methods |
| DE19756560C2 (de) * | 1997-12-18 | 2000-06-21 | Siemens Ag | Verfahren und Vorrichtung zur Bilderfassung |
-
1998
- 1998-08-13 DE DE19836770A patent/DE19836770C1/de not_active Expired - Fee Related
-
1999
- 1999-08-12 EP EP99952375A patent/EP1110169B1/de not_active Expired - Lifetime
- 1999-08-12 BR BR9912939-6A patent/BR9912939A/pt not_active IP Right Cessation
- 1999-08-12 WO PCT/DE1999/002523 patent/WO2000010205A2/de not_active Ceased
- 1999-08-12 KR KR10-2001-7001876A patent/KR100416445B1/ko not_active Expired - Fee Related
- 1999-08-12 DE DE59900961T patent/DE59900961D1/de not_active Expired - Fee Related
- 1999-08-12 ES ES99952375T patent/ES2173760T3/es not_active Expired - Lifetime
- 1999-08-12 AT AT99952375T patent/ATE214179T1/de not_active IP Right Cessation
- 1999-08-12 JP JP2000565569A patent/JP3482190B2/ja not_active Expired - Fee Related
- 1999-08-12 RU RU2001107020/09A patent/RU2192665C1/ru not_active IP Right Cessation
- 1999-08-12 CN CNB998096334A patent/CN1134746C/zh not_active Expired - Fee Related
- 1999-08-12 MX MXPA01001551A patent/MXPA01001551A/es unknown
- 1999-12-08 UA UA2001020947A patent/UA55554C2/uk unknown
-
2001
- 2001-02-13 US US09/782,733 patent/US6365888B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1312929A (zh) | 2001-09-12 |
| WO2000010205A3 (de) | 2000-05-18 |
| ATE214179T1 (de) | 2002-03-15 |
| EP1110169B1 (de) | 2002-03-06 |
| JP3482190B2 (ja) | 2003-12-22 |
| KR20010072461A (ko) | 2001-07-31 |
| EP1110169A2 (de) | 2001-06-27 |
| WO2000010205A2 (de) | 2000-02-24 |
| JP2002522797A (ja) | 2002-07-23 |
| KR100416445B1 (ko) | 2004-01-31 |
| US20010022337A1 (en) | 2001-09-20 |
| BR9912939A (pt) | 2005-04-12 |
| DE19836770C1 (de) | 2000-04-20 |
| RU2192665C1 (ru) | 2002-11-10 |
| US6365888B2 (en) | 2002-04-02 |
| RU2001107020A (ru) | 2004-01-27 |
| DE59900961D1 (de) | 2002-04-11 |
| MXPA01001551A (es) | 2005-06-20 |
| UA55554C2 (uk) | 2003-04-15 |
| CN1134746C (zh) | 2004-01-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FG2A | Definitive protection |
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