Famous Patents
In 1608, Dutch eyeglass maker Hans Lipperhey filed the first patent for a working telescope. The patent was denied.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7742628 | Apparatus and method for recognizing spatial writing and recording medium storing the method An apparatus and method for increasing the rate of recognition of spatial writing, the apparatus including an inertia sensor module, a storage module, an operation module, and a recognition module. The inertia sensor module measures acceleration of a spatial writing... | 06/22/2010 |
| 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 adapted to detect non-stroke regions intervals where the motions of the s... | 01/06/2009 |
| 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 time. The digitized writing record may be converted to image format. ... | 10/14/2008 |
| 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 signature. The digital document specifies a representation of the dig... | 07/29/2008 |
| 7286706 | Device for detecting and representing movements The present invention concerns a device for detecting and representing movements. The device includes a position sensor for detecting the current position of a reference point of the device, a data processor for processing the position data detected by the position ... | 10/23/2007 |
| 7257259 | Lossless variable-bit signature compression Apparatus and methods for compressing data points. The invention compresses the representation of a sequence of points in a space by, for example, dividing the sequence of points into segments of successive points and then compressing each of the segments irrespecti... | 08/14/2007 |
| 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 respect to a writing implement main body of a lead and a... | 12/26/2006 |
| 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 modes, correction data corresponding to a scan mode of a given image... | 10/10/2006 |
| 7116804 | Computer readadle medium recording handwritten signature authentication program, and handwritten signature authentication method and apparatus A user's handwritten signature data is transmitted to a host device, when the user registers his or her signature. A signature information controlling unit reads the codes of a character string of a font closest to handwriting shape data by referencing a signature d... | 10/03/2006 |
| 7077064 | Methods for measurement and control of ink concentration and film thickness A process is disclosed to measure or monitor ink concentration or ink thickness of an ink film as printed on a printing press, which consists of measuring light reflected from the ink film and the ink substrate. ... | 07/18/2006 |
| 6934454 | Distributed optical amplifying apparatus, optical communication station, optical communication system, and optical fiber cable An optical fiber transmission line including first, second and third optical fibers connected together so that light travels through the transmission line from the first optical fiber, then through the second optical fiber and then through the third optical fiber. T... | 08/23/2005 |
| 6907131 | Method and program for producing photographs with autographed messages written in customized character fonts A novel and unique method and program for producing a photograph of a celebrity figure with personalized and autographed messages. The method includes the steps of collecting signatures and photographs of celebrity figures, generating corresponding special character... | 06/14/2005 |
| 6906703 | Electronic module for sensing pen motion An electronic module that inserts into or is otherwise associated with a pen or other writing instrument. The electronic module includes a mechanism, such as an accelerometer, for detecting pen motion. The electronic module is preferably mounted in a substitute ink ... | 06/14/2005 |
| 6744915 | Image identification apparatus and method of identifying images An image identification apparatus for identifying an image from a sequence of spatial samples generated in response to a hand drawn representation of the image, the image identification apparatus comprising a segment processor arranged in operation to determine from... | 06/01/2004 |
| 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 features can include characters, character strings, symbols, icon... | 03/09/2004 |
| 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 surface and an acceleration sensor when the device is not ... | 09/23/2003 |
| 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 concerning forces, accelerations, and the like, of a scriber, is c... | 04/08/2003 |
| 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 character is recognized on the basis of the image data. I... | 12/25/2001 |
| 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 digitizer defining a fixed interval between successive styl... | 10/23/2001 |
| 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 part of a facsimile.... | 03/13/2001 |
| 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 invention find application in pen-based computer devices.... | 01/25/2000 |
| 5933514 | Method for dynamic reconstruction of handwritten data A method is provided for reconstructing data generated on a digitizer tablet based on the dynamics of the data generation. The digitizer tablet samples the position of the writing pen, continuously transmitting data to a computer in the form of x and y co... | 08/03/1999 |
| 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, and when the user writes with the tool, the handwriting in... | 07/14/1998 |
| 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 brightness information of each pixel in an image photographed ... | 06/23/1998 |
| 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 method includes steps for generating a velocity profile fr... | 06/16/1998 |
| 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 medium for storing software with encoded characters, graphs,... | 06/16/1998 |
| 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 function analysis. The dynamic data concerning scriber mov... | 04/13/1993 |
| 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 entrant submits a sample of multiple signatures. A first refer... | 05/05/1992 |
| 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 position signals characterizing a trajectory of a handwrit... | 03/31/1992 |
| 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 of the handwriting movement. The apparatus comprises a de... | 12/31/1991 |
| 5027414 | Method and apparatus for capturing information in drawing or writing The forgery of signatures is made more difficult if the dynamic features of a signature can be checked when the signature is verified. Signatures to be verified are written with a pen which is sensitive to light received at its tip, each signature being w... | 06/25/1991 |
| 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 Vx and Vy characteristic of the speed components along the abscissa and ordinate respectively of a rectangular co-ordinate system. Each speed ... | 02/13/1990 |
| 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 pulse rate as the signature is written. A number string i... | 10/20/1987 |
| 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 a layer of rectilinear conductive portions 1a, 2a, 5a, 6a... | 08/02/1983 |
| 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 proportional to pen acceleration. A Blumlein bridge circuit is utiliz... | 08/17/1982 |
| 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 displacements (i.e. acceleration) are periodically sampled fo... | 09/28/1976 |
| 3962679 | Handwriting identification technique Handwriting identification technique employing handwriting speed as a discriminant.... | 06/08/1976 |
| 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 identification or characterization of the signature. As disclose... | 05/04/1976 |
