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Class Information
Number: 382/121
Name: Image analysis > Applications > Personnel identification (e.g., biometrics) > Using a signature > Sensing pressure only
Description: Subject matter wherein the characteristic of the writing sample used is only pressure or force exerted by the writer with a writing instrument during the writing of the sample.

Patents under this class:
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Patent Number Title Of Patent Date Issued
8644878 Apparatus and method for operation according to squeezing in portable terminal Feb. 4, 2014
8380995 Process for login of a computing device with a touchscreen Feb. 19, 2013
8317609 Method, apparatus and system for determining the presence of a user at a device such as a gaming machine Nov. 27, 2012
8047914 Player verification system Nov. 1, 2011
8031909 Method and apparatus for producing 3D model of an underground environment Oct. 4, 2011
8019178 Resolution and sensitivity balance metric Sep. 13, 2011
8005273 Systems and methods for identifying a document with forged information in non-signature information fields Aug. 23, 2011
7865018 Personalized implicit and explicit character shape adaptation and recognition Jan. 4, 2011
7865038 Resolution and sensitivity balance metric Jan. 4, 2011
7778386 Methods for analytic reconstruction for mult-source inverse geometry CT Aug. 17, 2010
7710402 Information display device and supporting frame for supporting a piezoelectric element for use in information display device May. 4, 2010
7706580 Systems and methods for identifying a document with forged information Apr. 27, 2010
7694145 Indicating status for digital signatures Apr. 6, 2010
7646893 Biometric information apparatus narrowing biometric information of registered users used when authorizing a candidate based on features extracted from the biometric information of the candidat Jan. 12, 2010
7564996 Method and apparatus for image processing Jul. 21, 2009
7436989 Generation, verification and reproduction of a digitized writing Oct. 14, 2008
7406599 Indicating status for digital signatures Jul. 29, 2008
7295339 Image forming apparatus Nov. 13, 2007
6922779 Method and system for sensing device registration Jul. 26, 2005
6817130 Sensor array for unauthorized user prevention device Nov. 16, 2004
6633282 Ballpoint pen type input device for computer Oct. 14, 2003
6625314 Electronic pen device and character recognition method employing the same Sep. 23, 2003
6606399 PTF touch-enabled image generator Aug. 12, 2003
6334003 Data input system for enabling data input by writing without using tablet or the like Dec. 25, 2001
6307955 Electronic signature management system Oct. 23, 2001
6091838 Irradiated images described by electrical contact Jul. 18, 2000
5589636 Method of and apparatus for the detection of an ultrasonic field Dec. 31, 1996
5528699 Information medium recognition device Jun. 18, 1996
5294792 Writing tip position sensing and processing apparatus Mar. 15, 1994
5120906 Handwriting capture device Jun. 9, 1992
5111004 Stylus for handwriting identification May. 5, 1992
5095510 Device and method for verifying personal handwriting Mar. 10, 1992
5081686 Personal handwriting verification Jan. 14, 1992
5029219 Personal handwriting verification Jul. 2, 1991
5022086 Handwriting apparatus for information collection based on force and position Jun. 4, 1991
5018208 Input device for dynamic signature verification systems May. 21, 1991
4707573 Electrical conductor array Nov. 17, 1987
4646351 Method and apparatus for dynamic signature verification Feb. 24, 1987
4475235 Signature verification sensor Oct. 2, 1984
4344135 Dynamic creation of signatures Aug. 10, 1982
4156911 Dynamic re-creation of signatures May. 29, 1979
4143357 Transducing device for signature verification system Mar. 6, 1979
4040011 Identification based on handwriting samples Aug. 2, 1977
4040010 Identification by handwriting verification Aug. 2, 1977
4040012 Handwriting verification system Aug. 2, 1977
4035769 Method and apparatus for recording a signature Jul. 12, 1977
4035768 Personal identification apparatus Jul. 12, 1977
4008457 Pressure transducing apparatus for use in a signature identification system Feb. 15, 1977
3991402 Pressure transducing platen for use in a signature identification or verification system Nov. 9, 1976
3959769 Method and apparatus for recording a signature May. 25, 1976

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