Inventor
TRESSER CHARLES P
US49 patents
⚠️ This page may combine multiple inventors who share the name “TRESSER CHARLES P”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
IBM
42 patentsUS6996543B1Feb 7, 2006
System for protection of goods against counterfeiting
IBM150 citations99
US6450403B1Sep 17, 2002
Method and apparatus for depositing ordinary checks from home or office
IBM199 citations99
US6397334B1May 28, 2002
Method and system for authenticating objects and object data
IBM199 citations99
US6226619B1May 1, 2001
Method and system for preventing counterfeiting of high price wholesale and retail items
IBM355 citations99
US6069955AMay 30, 2000
System for protection of goods against counterfeiting
IBM234 citations99
US6746053B1Jun 8, 2004
Method and system for preventing parallel marketing of wholesale and retail items
IBM81 citations98
US6525672B2Feb 25, 2003
Event-recorder for transmitting and storing electronic signature data
IBM282 citations98
US6275599B1Aug 14, 2001
Compressed image authentication and verification
IBM343 citations98
US6115616ASep 5, 2000
Hand held telephone set with separable keyboard
IBM115 citations98
US7353532B2Apr 1, 2008
Secure system and method for enforcement of privacy policy and protection of confidentiality
IBM81 citations97
US6954290B1Oct 11, 2005
Method and apparatus to correct distortion of document copies
IBM106 citations97
US6834344B1Dec 21, 2004
Semi-fragile watermarks
IBM85 citations97
US6807634B1Oct 19, 2004
Watermarks for customer identification
IBM78 citations97
US6737954B2May 18, 2004
Event-recorder for transmitting and storing electronic signature data
IBM66 citations96
US6501390B1Dec 31, 2002
Method and apparatus for securely determining aspects of the history of a good
IBM176 citations96
US6256736B1Jul 3, 2001
Secured signal modification and verification with privacy control
IBM53 citations96
US6028907AFeb 22, 2000
System and method for three-dimensional geometric modeling by extracting and merging two-dimensional contours from CT slice data and CT scout data
IBM82 citations95
US6023495AFeb 8, 2000
System and method for acquiring three-dimensional data subject to practical constraints by integrating CT slice data and CT scout images
IBM62 citations95
US7370366B2May 6, 2008
Data management system and method
IBM69 citations94
US6990586B1Jan 24, 2006
Secure data transmission from unsecured input environments
IBM51 citations93
US6817538B2Nov 16, 2004
Method and system for preventing parallel marketing of wholesale and retail items
IBM20 citations93
US5946455AAug 31, 1999
Model based error diffusion with correction propagation
IBM21 citations93
US7401352B2Jul 15, 2008
Secure system and method for enforcement of privacy policy and protection of confidentiality
IBM20 citations92
US7100050B1Aug 29, 2006
Secured signal modification and verification with privacy control
IBM22 citations92
US6515770B1Feb 4, 2003
Dither mask generation with calibration-independent number of threshold levels
IBM20 citations92
US6088123AJul 11, 2000
Dithering masks with very large periods
IBM20 citations92
US5917951AJun 29, 1999
Clustered aperiodic mask
IBM43 citations92
US5946370AAug 31, 1999
System and method for accessing the three-dimensional geometry of large objects using X-ray based method subject to limitations on radiation doses
IBM27 citations90
US6564322B1May 13, 2003
Method and apparatus for watermarking with no perceptible trace
IBM21 citations89
US5943477AAug 24, 1999
Microlocal calibration of digital printers
IBM17 citations84
US7215445B2May 8, 2007
Method and apparatus to correct distortion of document copies
IBM11 citations83
US7222100B2May 22, 2007
System and method for maintaining customer privacy
IBM7 citations74
US7051006B2May 23, 2006
System and method for maintaining customer privacy
IBM5 citations74
US6055065AApr 25, 2000
Printer independent halftone image rendering
IBM13 citations74
US6982625B2Jan 3, 2006
Event-recorder for transmitting and storing electronic signature data
IBM10 citations73
US6597813B1Jul 22, 2003
Masks with modulated clustering and aperiodicity and rescaling of masks
IBM12 citations73
US6714318B1Mar 30, 2004
Dithering method and apparatus for multitone printers
IBM8 citations72
US6873977B1Mar 29, 2005
Achieving buyer-seller anonymity for unsophisticated users under collusion amongst intermediaries
IBM10 citations71
US6603573B1Aug 5, 2003
Constrained digital halftoning
IBM11 citations71
US7265872B2Sep 4, 2007
Error diffusion with averaged directional biases
IBM5 citations63
US7818581B2Oct 19, 2010
Data management system
IBM2 citations59
US7450723B2Nov 11, 2008
Method and system for providing for security in communication
IBM0 citations42