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7564996 |
Method and apparatus for image processing
An image processing system includes, in part, an image processing engine adapted to perform object-independent processing corresponding to a first processing layer of the image processing system, a...
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7436989 |
Generation, verification and reproduction of a digitized writing
A digitized writing is recorded in a digitized writing record including at least the position of each point of a writing in coordinates relative to a coordinate of a previous point thereof and...
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7406599 |
Indicating status for digital signatures
Methods and apparatus, including computer program products, for presenting status of digital signatures. A digital document is received that defines a presentation structure and includes a digital...
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6922779 |
Method and system for sensing device registration
A method and system for registration of a sensing device for use with a computer system. The method includes providing a printed registration form including registration information and coded data...
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6817130 |
Sensor array for unauthorized user prevention device
Improvements in the sensor array are disclosed for an array used in a module for preventing unauthorized use of a firearm or other device. The module to which the invention is applicable of the...
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6633282 |
Ballpoint pen type input device for computer
A wireless input device having an outward appearance resembling a standard ballpoint pen operates as both a standard ballpoint pen or similar writing instrument as well as an input device. The pen...
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6625314 |
Electronic pen device and character recognition method employing the same
An electronic device used to identify loci containing more than one stroke. This electronic device utilizes a ball rotation sensor to detect the position and movement while it is in contact with a...
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6606399 |
PTF touch-enabled image generator
A polymer thick film (PTF) electroluminescent device generating images described by contact, in which the contact itself closes an open circuit to generate radiation in a pattern in register with...
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6334003 |
Data input system for enabling data input by writing without using tablet or the like
A data input system is provided with an input pen. A sequence of characters are traced with the input pen, and image data on them are read from the image scanner incorporated in the input pen. Each...
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6307955 |
Electronic signature management system
An electronic signature management system includes a graphic tablet digitizer for signaling position coordinates of a stylus being moved to produce a handwritten signature, a clock circuit of the...
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6091838 |
Irradiated images described by electrical contact
A device generating images described by contact, in which the contact itself closes an open circuit to generate radiation in a pattern in register with the contact. The resulting irradiated image...
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5589636 |
Method of and apparatus for the detection of an ultrasonic field
The number of transducers in the scanning of an ultrasonic field from an object is reduced by providing ultrasonic collectors at spaced apart locations in the medium and transmitting the ultrasonic...
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5528699 |
Information medium recognition device
An information medium recognition device for recognizing an information medium such as a handwritten signature inputted by performing an online input operation. The information medium recognition...
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5294792 |
Writing tip position sensing and processing apparatus
A self-contained pen computer is provided that is capable of acquiring data representative of written strokes of the stylus of the pen and then recognizing the symbols associated with these pen...
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5111004 |
Stylus for handwriting identification
A stylus formed of a shaft containing pressure sensors and useful in signature verification and in identification of individuals. The pressure sensors are imbedded in and integral with the shaft of...
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5095510 |
Device and method for verifying personal handwriting
The stress wave activity produced in a surface by a writing instrument during the generation of a given piece of handwriting is detected by a transducer and is electrically processed. The stress...
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5081686 |
Personal handwriting verification
The stress-wave activity produced by the interaction between a writing instrument and a surface during the generation of a given piece of handwriting on the surface is detected and stored. The...
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5022086 |
Handwriting apparatus for information collection based on force and position
An apparatus for collecting information directly at a point on a surface comprises the combination of a stylus with means for sensing force along at least one axis in a surface at a point on the...
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5018208 |
Input device for dynamic signature verification systems
Finger pressure exerted by a writer's fingers on the barrel of a hand-held instrument is employed to dynamically verify a signature.
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4707573 |
Electrical conductor array
An electrical conductor array particularly for use in a pressure pad is described. The pressure pad comprises two electrical conductors arrays (3,5) of substantially parallel electrical conductors...
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4646351 |
Method and apparatus for dynamic signature verification
The subject invention relates to a new and improved method of dynamic signature verification. In accordance with the subject invention output signals, generated by a stylus, are normalized such...
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4475235 |
Signature verification sensor
A sensor having a particular application in the field of signature verification is disclosed. In the presently preferred embodiment, two plates are disposed in a spaced apart relationship and...
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4344135 |
Dynamic creation of signatures
In order to verify the authenticity of the signature of an individual, first a sample signature is written with a pen which can generate electrical signals representative of the forces exerted in...
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4143357 |
Transducing device for signature verification system
A transducing device converts to representative electrical signals those force variations which are produced by the act of a person writing a signature. In the device, a signature writing surface...
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4040012 |
Handwriting verification system
Identification of a specimen signature is provided by comparing the specimen with a previously recorded template signature. The comparison is performed by recording, for both specimen and template...
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4040011 |
Identification based on handwriting samples
An individual, who is to be subsequently identified, first signs his signature, hereinafter called a template signature, with a special pen, attached to circuits, which produce digital sample...
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4040010 |
Identification by handwriting verification
A person, who is to have his identity verified, first writes his signature or any other appropriate group of characters or symbols several times with a special pen which produces signals...
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4035769 |
Method and apparatus for recording a signature
The pressure exerted while writing a signature is transduced to an electrical analog signal which is periodically converted to a binary coded number representing the average amplitude of the...
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4035768 |
Personal identification apparatus
Apparatus used in identifying a person by means of pressure patterns associated with a signature comprises first and second spaced and parallel planar conductor elements with a lamina of...
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4008457 |
Pressure transducing apparatus for use in a signature identification system
A pressure transducing apparatus which is responsive to the pressure variations which are produced when an individual signs his signature, for generating an electrical signal representative of such...
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3991402 |
Pressure transducing platen for use in a signature identification or verification system
A pressure transducing apparatus which is responsive to the pressure which is exerted by an individual when he signs his signature for generating an A.C. electrical signal representative of the...
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3956734 |
Platen having a pressure-responsive transducing means for use in a signature-identifying system
An apparatus which is responsive to the pressure variations inherent in an individual's act of handwriting a signature for generating electrical signals representative of these characteristic...
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3859515 |
METHOD AND APPARATUS FOR SIGNAL SPECTRUM ANALYSIS BY HADAMARD TRANSFORM
A method and apparatus for transforming the analog waveform of a signal into its Hadamard characterization by performing a matrix multiplication using the Hadamard matrix and for analyzing the...
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3818443 |
SIGNATURE VERIFICATION BY ZERO-CROSSING CHARACTERIZATION
A method and apparatus for establishing a representation of a standard signature from a plurality of substantially identical signatures wherein said representation is to be used on an...
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3618019 |
SIGNATURE IDENTIFICATION BY MEANS OF PRESSURE PATTERNS
A system verifies signatures by converting the pressure patterns generated when a person writes his signature to binary coded combinations of signals which are then compared for similarity with...
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3579186 |
PERSONAL IDENTIFICATION METHOD AND APPARATUS
A method and apparatus for positively determining whether an individual is a member of a predetermined group based on unique repeatable characteristics of an electrical waveform generated by a...
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3480911 |
SIGNATURE IDENTIFICATION INSTRUMENT
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3621720 |
Title is not available
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