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6021212 |
Electronic key device using a fingerprint to initiate a computer system
The present invention provides an electronic key device which can combine a fingerprint with an input ID code to generate a key signal to initiate a computer system. The key device comprises a...
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6021211 |
Method and related apparatus for fingerprint indexing and searching
A method for indexing and searching a plurality of reference fingerprints to determine if a sample fingerprint matches one of the reference fingerprints includes the steps of: determining...
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6016355 |
Capacitive fingerprint acquisition sensor
An apparatus for detecting topographic variations on an object such as a finger includes an array of sensing elements disposed on a substrate which each have a parasitic capacitance. An insulating...
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6011859 |
Solid state fingerprint sensor packaging apparatus and method
A planar, capacitive-type, rectangular, and multi-pixel fingerprint sensing array is mounted on the horizontal and generally rectangular top-surface of a dome that extends upward generally from the...
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6011860 |
Small reliable image input apparatus incorporated in finger-print collation system of personal identification
An image input device has a optical guide plate exposed to a window of a photo-shield case, a pair of light emitting diodes attached to side surfaces of the optical guide plate for radiating light...
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6005963 |
System and method for determining if a fingerprint image contains an image portion representing a partial fingerprint impression
A fingerprint image is divided into blocks of pixels. The blocks are determined to be within the foreground or background of the image. Each of the foreground blocks are assigned a block direction....
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6005962 |
Personal identification system
A personal identification system for collating an article requiring personal identification with a person using the article has a personal identification data reader for reading the image of a...
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6002786 |
Device for imaging prints
The device for imaging finger prints has a transparent electrically insulating substrate, a thin transparent electrode on the substrate and a sensitive layer on the electrode comprising...
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6002807 |
Rotationally invariant correlator
A rotationally invariant correlator which correlates an arbitrarily rotated image with a large database of similar stored images. The correlator initially scans the image to produce a...
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6002784 |
Apparatus and method for detecting features of a fingerprint based on a set of inner products corresponding to a directional distribution of ridges
Detection of a fingerprint feature is performed on the basis of a directional distribution of a fingerprint obtained by setting a plurality of points on a circle having a center corresponding to a...
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6002783 |
Object checking system capable of checking object irrespective of checking algorithms for reference data
An object checking system, particularly a signature checking system, verifies each card carrier by checking a signature entered from a tablet provided for a signature checking terminal device with...
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6002785 |
Tenprint card selector with fingerprint pattern level processing used to select candidates for sub-pattern level processing
A tenprint selector comprises a fingerprint pattern level feature difference calculating unit which receives and compares a set of candidates for pattern level feature types of fingerprint images...
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5999637 |
Individual identification apparatus for selectively recording a reference pattern based on a correlation with comparative patterns
The individual identification apparatus is provided for comparing a target pattern of an arbitrary person with a recorded reference pattern of a specific person, thereby judging whether the...
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5995641 |
Fingerprint identification device and method of using same
A fingerprint identification device includes a fingerprint image pickup unit which receives reflected light from a light source to take a picture, and an in-block average luminance calculation unit...
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5995642 |
Method for automatic fingerprint classification
A method for automatic fingerprint classification is dependent on the number of core points and the ridge flow direction around the core points. The speed of the classification process is improved...
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5995643 |
Image input system based on finger collation
A read section reads an image. A feature extraction section extracts feature information of a finger, of a person to be authenticated, which is to be collated. The feature information of the finger...
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5995014 |
Biometric interface device for upgrading existing access control units
A method and an apparatus for upgrading an existing personal control system. The upgrade is achieved by replacing the personnel data input unit of an existing personal control system with a...
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5995630 |
Biometric input with encryption
A fingerprint sensing system for providing data in dependence upon fingerprint information to a computer is disclosed. The system comprises an imaging device for capturing a fingerprint image. The...
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5991430 |
Method and device for automatic matching of planar point patterns
A method for automatic matching of planar point patterns in a reference pattern with a test pattern includes course mating, calculation of a mated possibility for one point in each pattern,...
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5991467 |
Image reading apparatus containing light receiving transistors and switching transistors
An inexpensive, miniaturized and thin image reading apparatus reads various types of images, such as fingerprints. The apparatus includes a transparent substrate. A light-emitting unit emits light...
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5990804 |
Animate body detector
The subject oscillation frequency generating section generates a subject oscillation frequency in response to the capacitance of subject when the subject contacts the measurement electrode. The...
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5987155 |
Biometric input device with peripheral port
A transducer is provided with an integral smart card reader. For security applications the transducer is a biometric information input device. The device provides co-operative operation of the...
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5982914 |
Identification of individuals from association of finger pores and macrofeatures
A method of identifying an individual from examination of their natural physical characteristics is shown. The method comprises obtaining from an individual during a registration process, a...
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5982913 |
Method of verification using a subset of claimant's fingerprint
The present invention is a method of fingerprint verification that includes the steps of capturing a complete fingerprint of a number of enrollees; capturing a portion of a claimant's fingerprint,...
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5978495 |
Method and apparatus for accurate determination of the identity of human beings
Methods and apparatus for the accurate determination of the identity of human beings by comparing a fingerprint image with previously recorder templates utilize an oil impregnated material to...
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5974162 |
Device for forming and detecting fingerprint images with valley and ridge structure
A method and ultra-compact system has been developed for illuminating and detecting the surface topography of an object such as the finger of an individual. The system is capable of producing...
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5963656 |
System and method for determining the quality of fingerprint images
A fingerprint image is divided into blocks of pixels. The blocks are marked as directional or non-directional. The blocks are also determined to be within the foreground or background of the image....
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5963679 |
Electric field fingerprint sensor apparatus and related methods
A fingerprint sensor includes an array of electric field sensing electrodes, a dielectric layer on the sensing electrodes with the dielectric layer for receiving a finger adjacent thereto, and a...
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5960991 |
Fingerprint activated soap dispenser
A dispenser to dispense material onto a person's hand, comprising: a dispensing device to dispense material from an outlet when the dispensing device is activated, a fingerprint reader adapted to...
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5960100 |
Credit card reader with thumb print verification means
A credit card reader with thumb print verification means is provided including a credit card having a thin magnetic strip with an account number stored thereon and a thumb print image. Also...
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5960101 |
Expert matcher fingerprint system
A system and method match a search print with one or more file prints stored in a database, wherein each of said prints including minutiae. The system and method receive a minutiae match report...
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5956415 |
Enhanced security fingerprint sensor package and related methods
A fingerprint sensor package includes a tamper-resistant housing, a fingerprint sensor mounted in the housing, and an encryption output circuit mounted within the housing and operatively connected...
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5940526 |
Electric field fingerprint sensor having enhanced features and related methods
A fingerprint sensor includes a plurality of semiconductor devices adjacent a substrate and defining active circuit portions, and having only three metal layers. More particularly, the sensor may...
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5940525 |
Fingerprint detection apparatus
A fingerprint detection apparatus includes a plurality of first electrodes having linear shapes and arranged in parallel to one another, a plurality of second electrodes arranged between said...
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5933515 |
User identification through sequential input of fingerprints
An identification system using biometric information of human body parts and a secret sequence code. In particular, biometric information of human body parts is used to form the secret sequence...
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5926555 |
Fingerprint identification system
A fingerprint identification system from a gray scale image of the fingerprint includes the steps of converting fingerprint image into a digitized gray scale image, enhancing gray scale to provide...
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5920641 |
Method for reconstructing linear structures present in raster form
Linear structures are used to identify persons. In order to be able to combine a multiplicity of such linear structures in a database, their original images are analyzed and reconstructed using...
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5920642 |
Ergonomic fingerprint reader apparatus
A portable notarization system. The notarization system includes in one housing both a fingerprint acquisition device and an account identification device. Signals representative of the fingerprint...
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5917928 |
System and method for automatically verifying identity of a subject
A system and method for verifying identity of a user seeking access to a secured area or object is provided. The system employs a novel global image comparison approach by first acquiring a...
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5917924 |
Postage metering system
A postage meter system including a postage meter is provided with recognition means to recognise a personal characteristic. The recognition means is operated in an initial phase to read a personal...
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5915034 |
Pattern collation apparatus based on spatial frequency characteristics
In a pattern processing apparatus, a registration data preparation unit performs two-dimensional discrete Fourier transform of image data of a registration pattern to prepare registration Fourier...
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5912981 |
Baggage security system and use thereof
A baggage security system is disclosed for providing fingerprint identification of all persons checking luggage or cargo to be shipped on airline flights, to enable swift identification of all...
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5910999 |
Individual identification apparatus based on frequency domain correlation of plural reference images and a target image
The image pick up portion 50 picks up a pattern of a predetermined body portion of a specific individual a plurality of times and outputs a plurality of reference image signals for being stored....
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5901239 |
Skin pattern and fingerprint classification system
A skin pattern classification system extracts ridge line data and valley line data from image data of a skin pattern. Minutiae are extracted from the ridge line data and the valley line data....
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5897989 |
Method, apparatus and system for verification of infectious status of humans
A method and apparatus for collecting medical data from a test subject while preserving anonymity for the test subject. The method includes steps of collecting a sample from the test subject and...
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5892838 |
Biometric recognition using a classification neural network
A biometric recognition system involves two phases: creation of a master pattern set of authorized users biometric indicia and authentication using a classification neural network. To create the...
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5887140 |
Computer network system and personal identification system adapted for use in the same
When a request to access a file or the like is made, a characteristic measuring unit measures the physical characteristic of a user of a computer system. A data degenerating unit processes the...
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5878157 |
Individual identification apparatus
The individual identification apparatus includes the image pick up portion 50 and the calculation processing portion 60. When recording information on a specific individual, the portion 50 picks up...
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5876926 |
Method, apparatus and system for verification of human medical data
A method and apparatus for collecting medical data from a test subject while optionally preserving anonymity for the test subject. The method includes steps of collecting a sample from the test...
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5864296 |
Fingerprint detector using ridge resistance sensor
A technique for detecting and verifying a fingerprint includes a skin resistance sensing array for translating the skin resistance of a fingertip into an electrical signal. The fingertip is moved...
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