US Patent No: 5,325,442

Number of patents in Portfolio can not be more than 2000

Fingerprint sensing device and recognition system having predetermined electrode activation

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Importance

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Abstract

A Fingerprint sensing device and a recognition system having a row/column array of sense elements which are coupled to a drive circuit and a sense circuit by sets of row and column conductors, respectively. The sense elements are actively addressable by the drive circuit. Each sense element contains a sense electrode and a switching device (e.g., a TFT) for active addressing of that sense electrode. The sense electrodes of the sense elements are covered by insulating material adapted for receiving, directly thereon or on respective conductive pads overlying the sense electrodes, a finger. Capacitances resulting from individual finger surface portions in combination with sense electrodes are sensed by the sense circuit by applying a potential to the sense electrodes and measuring charging characteristics. In the fingerprint recognition system, an output from the sensing circuit is analyzed and characteristical data is compared with stored characteristical data for identification and verification purposes.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
U.S. PHILIPS CORPORATIONNEW YORK, NY11382

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Knapp, Alan G Crawley, GB 59 1240

Cited Art

Patent Info (Count) # Cites Year
 
SIEMENS CORPORATION;INTELLECTUAL PROPERTY DEPARTMENT (3)
4,353,056 Capacitive fingerprint sensor 186 1980
4,394,773 Fingerprint sensor 108 1980
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SIEMENS CORPORATE RESEARCH & SUPPORT, INC. (1)
4,547,898 Apparatus for determining the two-dimensional connectivity of a prescribed binary variable associated with a surface 27 1983
 
OTHER [CHECK PATENT PROFILE FOR ASSIGNMENT INFORMATION] (3)
4,582,985 Data carrier 330 1982
4,577,345 Fingerprint sensor 78 1984
4,986,136 Measuring system 19 1989

Patent Citation Ranking

Forward Cites

Patent Info (Count) # Cites Year
 
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6,088,471 Fingerprint sensor including an anisotropic dielectric coating and associated methods 21 1997
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6,067,368 Fingerprint sensor having filtering and power conserving features and related methods 43 1997
5,920,640 Fingerprint sensor and token reader and associated methods 148 1997
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6,292,173 Touchpad computer input system and method 16 1998
6,256,022 Low-cost semiconductor user input device 21 1998
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7,239,227 Command interface using fingerprint sensor input system 4 1999
6,665,428 Resistive finger detection for fingerprint sensor 8 2000
6,512,381 Enhanced fingerprint detection 22 2000
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6,555,888 Electrostatic discharge protection for sensors 6 2002
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7,361,919 Multi-biometric finger sensor having different selectivities and associated methods 9 2004
7,358,514 Multi-biometric finger sensor apparatus and associated methods 5 2004
7,358,515 Multi-biometric finger sensor including electric field sensing pixels and associated methods 1 2004
7,321,701 Infrared biometric finger sensor and associated methods 1 2004
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YT ACQUISITION CORPORATION (31)
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6,950,810 Tokenless biometric electronic financial transactions via a third party identicator 16 2000
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VALIDITY SENSORS, INC. (21)
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8,358,815 Method and apparatus for two-dimensional finger motion tracking and control 0 2007
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STMICROELECTRONICS, INC. (20)
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5,982,608 Semiconductor variable capacitor 12 1998
6,114,862 Capacitive distance sensor 62 1998
6,180,989 Selectively doped electrostatic discharge layer for an integrated circuit sensor 24 1998
6,686,546 Static charge dissipation for an active circuit surface 17 1998
6,330,145 Apparatus and method for contacting a sensor conductive layer 7 1998
6,326,227 Topographical electrostatic protection grid for sensors 7 1998
6,423,995 Scratch protection for direct contact sensors 5 1999
6,110,791 Method of making a semiconductor variable capacitor 7 1999
6,603,192 Scratch resistance improvement by filling metal gaps 8 1999
6,225,711 Solid state capacitive switch 17 1999
6,472,246 Electrostatic discharge protection for integrated circuit sensor passivation 4 1999
6,437,583 Capacitive distance sensor 34 2000
6,610,555 Selectively doped electrostatic discharge layer for an integrated circuit sensor 5 2000
6,501,142 Topographical electrostatic protection grid for sensors 7 2001
6,780,726 Scratch protection for direct contact sensors 2 2001
6,496,021 Method for making a capacitive distance sensor 2 2002
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ACTIVCARD IRELAND LIMITED (10)
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5,867,802 Biometrically secured control system for preventing the unauthorized use of a vehicle 72 1996
5,991,431 Mouse adapted to scan biometric data 60 1997
6,333,989 Contact imaging device 50 1999
7,113,622 Swipe imager with improved sensing control features 17 2002
7,356,169 Method and system for transforming an image of a biological surface 12 2002
6,944,321 Image distortion compensation technique and apparatus 3 2002
7,366,328 Method and device for preventing false acceptance of latent fingerprint images 1 2007
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AUTHENTEC CORPORATION (9)
5,841,888 Method for fingerprint indexing and searching 52 1996
5,963,679 Electric field fingerprint sensor apparatus and related methods 88 1996
5,956,415 Enhanced security fingerprint sensor package and related methods 40 1996
5,828,773 Fingerprint sensing method with finger position indication 91 1996
5,862,248 Integrated circuit device having an opening exposing the integrated circuit die and related methods 95 1996
5,953,441 Fingerprint sensor having spoof reduction features and related methods 51 1997
5,940,526 Electric field fingerprint sensor having enhanced features and related methods 73 1997
5,903,225 Access control system including fingerprint sensor enrollment and associated methods 159 1997
5,852,670 Fingerprint sensing apparatus with finger position indication 81 1997
 
NIPPON TELEGRAPH AND TELEPHONE CORPORATION (5)
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7,548,636 Organism recognition system 3 2004
7,508,963 Surface shape recognition sensor device 1 2008
 
SONY CORPORATION (5)
6,052,474 Method and apparatus for collating images 2 1996
6,681,033 Capacitance detecting apparatus and its inspecting method and fingerprint checking apparatus 8 1999
7,031,500 Semiconductor apparatus for fingerprint recognition 5 2000
7,250,774 Fingerprint sensor 3 2002
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U.S. PHILIPS CORPORATION (5)
5,978,496 Fingerprint sensing devices and systems incorporating such 21 1997
6,108,438 Fingerprint sensing devices and systems incorporating such 7 1998
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SGS-THOMSON MICROELECTRONICS S.R.L. (4)
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KONINKLIJKE PHILIPS ELECTRONICS N.V. (3)
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6,411,727 Fingerprint sensing devices and systems incorporating such 10 1999
 
LG DISPLAY CO., LTD. (3)
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LUCENT TECHNOLOGIES INC. (3)
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SINTEF (3)
7,110,577 Method and apparatus for measuring structures in a fingerprint 25 1998
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STMICROELECTRONICS (3)
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FINGERPRINT CARDS AB (2)
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7,864,992 Fingerprint sensor element 0 2004
 
GETNER FOUNDATION LLC (2)
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6,055,324 Fingerprint image entry device of electrostatic capacitance sensing type 15 1998
 
KABUSHIKI KAISHA TOSHIBA (2)
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NORTHROP GRUMMAN SYSTEMS CORPORATION (2)
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SECUGEN CORPORATION (2)
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SEIKO EPSON CORPORATION (2)
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TCHOUIKEVITCH, VOLODYMYR (2)
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TPO HONG KONG HOLDING LIMITED (2)
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VERIDICOM, INC. (2)
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WILAN, INC. (2)
6,842,542 Method and device for capacitive image acquisition 1 2001
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ALPS ELECTRIC CO., LTD. (1)
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AU OPTRONICS CORP. (1)
7,187,812 Optical fingerprint sensor with variable resistors 0 2003
 
BOE-HYDIS TECHNOLOGY CO., LTD. (1)
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CHIMEI INNOLUX CORPORATION (1)
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EGIS TECHNOLOGY INC. (1)
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FUJITSU TAKAMISAWA COMPONENT LIMITED (1)
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HYDIS TECHNOLOGIES CO., LTD. (1)
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IB KOREA LTD. (1)
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IDENTIFID, INC. (1)
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IDEX AS (1)
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IDEX ASA (1)
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INFINEON TECHNOLOGIES AG (1)
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INSTITUT NATIONAL D'OPTIQUE (1)
6,633,656 Microthermistor based fingerprint sensor 13 2000
 
ISLIP TECHNOLOGIES LLC (1)
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LIGH TUNING TECH. INC. (1)
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LIGHTUNING TECHNOLOGY, INC. (1)
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MCQUINT, INC. (1)
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MEARS TECHNOLOGIES, INC. (1)
7,433,729 Infrared biometric finger sensor including infrared antennas and associated methods 0 2004
 
MORPHO (1)
6,494,380 IC card having fingerprint sensor designed to withstand bending 64 2001
 
NANOTEC SOLUTION (1)
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NEC CORPORATION (1)
6,154,580 Tactile sensor and fingerprint sensor using same 8 1998
 
NITGEN CO., LTD. (1)
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NXP B.V. (1)
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OHT INC. (1)
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OPEN INVENTION NETWORK, LLC (1)
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PICOFIELD TECHNOLOGIES INC. (1)
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SAGEM SECURITE (1)
6,128,399 Fingerprint sensor device 3 1997
 
SANYO ELECTRIC CO., LTD. (1)
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SEIKO INSTRUMENTS INC. (1)
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SGS-THOMSON MICROELECTRONICS, INC. (1)
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SIL-ABLE, INC. (1)
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SMARTOUCH, LLC (1)
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TERADYNE, INC. (1)
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TWM SPORTWAFFEN GMBH (1)
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VALIDLTY, INC. (1)
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VALLDITY SENSORS, INC. (1)
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VARIAN MEDICAL SYSTEMS, INC. (1)
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OTHER [CHECK PATENT PROFILE FOR ASSIGNMENT INFORMATION] (1)
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