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7580572 |
Spatial motion recognition system and method using a virtual handwriting plane
A spatial motion recognition system capable of recognizing motions in three-dimensional space as handwritings on a two-dimensional plane is provided. The system recognizes motions of a system body...
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7474771 |
Handwriting trajectory recognition system and method
A handwriting trajectory recognition system, having a motion detection unit adapted to output electric signals based on changes in acceleration of a body of the system in space. A control unit...
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7472134 |
Image distributing system
An image distributing system for distributing an image in which a certain objected character is caught, having a camera system capturing images in which a person who is the objected character is...
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7454042 |
Apparatus for online signature verification using pattern transform technique and method therefor
In an apparatus for online signature verification, a signature data input unit digitalizes a locus of a user signature and reads the locus as a sequence of points. A first and a second pattern...
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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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7155038 |
Handwriting identification system, writing implement for identifying handwriting and method for identifying handwriting
A processing terminal 10 includes a writing implement (ball point pen) 30 . The writing implement 30 is provided with a tilt change detecting mechanism for detecting a change in a tilt with...
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7119932 |
Image scanning system and method
In an image scanning system which can scan an image in a plurality of scanning modes, and has a memory for storing a correction data file which has correction data for each of the plurality of scan...
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6703633 |
Method and apparatus for authenticating a signature
A device and method are disclosed for capturing an electronic image signal from the interaction of light with features of, on, or near a media surface. In addition to signature marks, these...
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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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6546134 |
System for assessment of fine motor control in humans
A biometric machine method for instantaneous assessment of the fine motor control of a human individual through analysis of that individual's handwriting dynamics in which the dynamic data...
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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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6201903 |
Method and apparatus for pen-based faxing
A method and apparatus for sending a facsimile of a message is disclosed. The present invention provides for recording pen strokes that set forth a message and sending the recorded pen strokes as...
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6018591 |
Scribble matching
The present invention relates to scribble matching methods, ie. methods for searching samples of electronic ink without having first to translate the ink into ASCII text. The methods of the present...
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5781661 |
Handwritting information detecting method and apparatus detachably holding writing tool
The purpose of the present invention is to provide a handwriting information detecting method and apparatus for the same, in which a user can choose any handwriting tool such as a pen or a pencil,...
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5771485 |
Apparatus and method for detecting a velocity of a moving object
An apparatus for detecting a velocity of a moving object includes: a camera for photographing a predetermined area in which the object moves, at intervals of time T; a projector for projecting...
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5768417 |
Method and system for velocity-based handwriting recognition
The invention provides a computer-implementable method for detecting substroke boundaries in handwriting input. The method selects pen tip velocity extremas to represent. substroke boundaries. The...
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5768387 |
Key authentication method and key authentication apparatus
A key authentication device and method which, through the use of user-unique information, prevents the improper use of software. The key authentication device is equipped with a software storage...
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5202930 |
High precision on-line signature dynamic verification system
On-line handwritten data verification, such as a signature, is obtained based on the comparison of the dynamics of a sample and a reference signatures by use of a new implementation of correlation...
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5111512 |
Method for signature verification
A method and apparatus are described for verifying handwritten, human signatures, and for permitting access to a system if such a signature is accepted. In an initializing stage, an authorized...
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5101437 |
Method and apparatus for comparing a test handwritten signature with a reference signature by using information relative to curvilinear and angular velocities of the signature
Apparatus and method for comparing a test handwriting signature with a reference signature where each of the test and reference signatures have been acquired by generating three electrical digital...
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5077802 |
Apparatus and method for digitizing and segmenting a handwriting movement based on curvilinear and angular velocities
The apparatus and method for digitizing and segmenting a handwriting movement comprises an electrical transducer for generating three electrical digital position signals characterizing a trajectory...
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4901358 |
Method of comparing a handwriting with a reference writing
A method of comparing a handwriting with a reference writing by the measurement of signals V x and V y characteristic of the speed components along the abscissa and ordinate respectively of a...
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4701960 |
Signature verification
Disclosed is a method for determining whether or not two signatures were written by the same individual. An X-Y data tablet indicates the location of the writing instrument at a predetermined clock...
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4397033 |
Device for measuring characteristic parameters of the speed of handwriting
This device comprises two pairs of superimposed pick-up coils 1, 2, 5, 6. Each pair is formed by two windings coupled in series but with opposing winding directions, each winding of one pair having...
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4345239 |
Apparatus for determining pen acceleration
An apparatus for determining pen acceleration for use in a signature vertification system. Capacitive transducer means are mounted in a pen, and change capacitance by an amount which is...
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3983535 |
Signature verification method and apparatus
Method and apparatus are disclosed for verifying a sample signature based on comparison of the dynamics of a reference and a sample signature. More particularly, second derivative values of pen...
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3962679 |
Handwriting identification technique
Handwriting identification technique employing handwriting speed as a discriminant.
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3955178 |
Signature authentication system
A system is disclosed for authenticating a signature on the basis of its execution. Generally, the system senses the speed of the tip of a writing instrument as a criterion for developing an...
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3906444 |
Special pen and system for handwriting recognition
A system enabling automatic identification of a hand written signature is provided. A specimen signature is written with a special pen which will provide as output, signals representing the...
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3699517 |
HANDWRITING AUTHENTICATION TECHNIQUE
Apparatus and method for measuring and computing velocity and acceleration of a pen point and the pen-paper contacts during writing of a signature and comparing derived data with reference data...
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