US548686A
(en)
*
|
|
1895-10-29 |
|
Cigar-bunching machine |
US4637051A
(en)
|
1983-07-18 |
1987-01-13 |
Pitney Bowes Inc. |
System having a character generator for printing encrypted messages
|
JPS62111367A
(ja)
|
1985-11-11 |
1987-05-22 |
Hitachi Ltd |
バ−コ−ド読取機
|
US4901073A
(en)
|
1986-12-04 |
1990-02-13 |
Regent Of The University Of California |
Encoder for measuring the absolute position of moving elements
|
US4822986A
(en)
|
1987-04-17 |
1989-04-18 |
Recognition Equipment Incorporated |
Method of detecting and reading postal bar codes
|
US4924078A
(en)
|
1987-11-25 |
1990-05-08 |
Sant Anselmo Carl |
Identification symbol, system and method
|
US5195123A
(en)
|
1988-11-23 |
1993-03-16 |
Clement Richard J |
Radiograph identification method and device
|
US5304786A
(en)
|
1990-01-05 |
1994-04-19 |
Symbol Technologies, Inc. |
High density two-dimensional bar code symbol
|
US5153928A
(en)
*
|
1989-06-09 |
1992-10-06 |
Casio Computer Co., Ltd. |
Method and apparatus for recording/reproducing mesh pattern data
|
US5075862A
(en)
|
1989-12-26 |
1991-12-24 |
Pitney Bowes Inc. |
System for printing value indicia with diagrammatic data representation
|
US5337361C1
(en)
|
1990-01-05 |
2001-05-15 |
Symbol Technologies Inc |
Record with encoded data
|
CA2039652C
(en)
|
1990-05-30 |
1996-12-24 |
Frank Zdybel, Jr. |
Hardcopy lossless data storage and communications for electronic document processing systems
|
US5060980A
(en)
|
1990-05-30 |
1991-10-29 |
Xerox Corporation |
Form utilizing encoded indications for form field processing
|
US5091966A
(en)
|
1990-07-31 |
1992-02-25 |
Xerox Corporation |
Adaptive scaling for decoding spatially periodic self-clocking glyph shape codes
|
US5120940A
(en)
|
1990-08-10 |
1992-06-09 |
The Boeing Company |
Detection of barcodes in binary images with arbitrary orientation
|
US6076733A
(en)
|
1993-11-24 |
2000-06-20 |
Metrologic Instruments, Inc. |
Web-based system and method for enabling a viewer to access and display HTML-encoded documents located on the world wide web (WWW) by reading URL-encoded bar code symbols printed on a web-based information resource guide
|
US5315098A
(en)
|
1990-12-27 |
1994-05-24 |
Xerox Corporation |
Methods and means for embedding machine readable digital data in halftone images
|
US5818970A
(en)
|
1991-04-26 |
1998-10-06 |
Canon Kabushiki Kaisha |
Image encoding apparatus
|
US5541396A
(en)
|
1991-07-19 |
1996-07-30 |
Rentsch; Frederic |
Method of representing binary data
|
US5339170A
(en)
|
1991-12-31 |
1994-08-16 |
Xerox Corporation |
Image processing system and method employing hybrid filtering to provide improved reconstruction of continuous tone images from halftone screen-structured images
|
US5329105A
(en)
|
1992-08-10 |
1994-07-12 |
United Parcel Service Of America, Inc. |
Method and apparatus for determining the width of elements of bar code symbols
|
US5535020A
(en)
|
1992-10-15 |
1996-07-09 |
Digital Equipment Corporation |
Void and cluster apparatus and method for generating dither templates
|
US5527407A
(en)
|
1992-12-30 |
1996-06-18 |
The Goodyear Tire & Rubber Company |
Apparatus and method for marking a rubber article with a message readable by a light scanning device
|
AU6267294A
(en)
|
1993-02-02 |
1994-08-29 |
Label Vision Systems, Inc. |
Method and apparatus for decoding bar code data from a video signal and applications thereof
|
US5490217A
(en)
*
|
1993-03-05 |
1996-02-06 |
Metanetics Corporation |
Automatic document handling system
|
US6345104B1
(en)
|
1994-03-17 |
2002-02-05 |
Digimarc Corporation |
Digital watermarks and methods for security documents
|
US6983051B1
(en)
|
1993-11-18 |
2006-01-03 |
Digimarc Corporation |
Methods for audio watermarking and decoding
|
US5459307A
(en)
|
1993-11-30 |
1995-10-17 |
Xerox Corporation |
System for storage and retrieval of digitally encoded information on a medium
|
US5606507A
(en)
|
1994-01-03 |
1997-02-25 |
E-Stamp Corporation |
System and method for storing, retrieving and automatically printing postage on mail
|
US6095418A
(en)
|
1994-01-27 |
2000-08-01 |
Symbol Technologies, Inc. |
Apparatus for processing symbol-encoded document information
|
US5591956A
(en)
|
1995-05-15 |
1997-01-07 |
Welch Allyn, Inc. |
Two dimensional data encoding structure and symbology for use with optical readers
|
GB9409773D0
(en)
|
1994-05-13 |
1994-07-06 |
Atomic Energy Authority Uk |
Identification system
|
US5544255A
(en)
|
1994-08-31 |
1996-08-06 |
Peripheral Vision Limited |
Method and system for the capture, storage, transport and authentication of handwritten signatures
|
US6091835A
(en)
|
1994-08-31 |
2000-07-18 |
Penop Limited |
Method and system for transcribing electronic affirmations
|
US5523552A
(en)
|
1994-10-19 |
1996-06-04 |
Symbol Technologies, Inc. |
Method and apparatus to scan randomly oriented two-dimensional bar code symbols
|
US5513563A
(en)
|
1994-11-14 |
1996-05-07 |
Pitney Bowes Inc. |
Indicia security via variable dot size
|
JP2952170B2
(ja)
|
1994-12-16 |
1999-09-20 |
オリンパス光学工業株式会社 |
情報再生システム
|
JPH08185451A
(ja)
*
|
1994-12-28 |
1996-07-16 |
Toppan Moore Co Ltd |
手書き情報処理装置及び情報記憶媒体
|
US6032861A
(en)
|
1995-01-03 |
2000-03-07 |
Lemelson; Jerome H. |
Method and apparatus for encoding and decoding bar codes with primary and secondary information and method of using such bar codes
|
US5661284A
(en)
|
1995-03-13 |
1997-08-26 |
Albert J. Freeman |
Commercial transaction system
|
JPH0944592A
(ja)
|
1995-05-23 |
1997-02-14 |
Olympus Optical Co Ltd |
情報再生システム
|
US5706099A
(en)
|
1995-06-05 |
1998-01-06 |
Xerox Corporation |
Method and apparatus for generating serpentine halftone images
|
US5710636A
(en)
|
1995-06-05 |
1998-01-20 |
Xerox Corporation |
Method and apparatus for generating halftone images having human readable patterns formed therein
|
US6311214B1
(en)
|
1995-07-27 |
2001-10-30 |
Digimarc Corporation |
Linking of computers based on optical sensing of digital data
|
JPH0981711A
(ja)
|
1995-09-20 |
1997-03-28 |
Olympus Optical Co Ltd |
情報記録媒体、情報再生システム、及び情報記録システム
|
US5801944A
(en)
|
1995-10-11 |
1998-09-01 |
E-Stamp Corporation |
System and method for printing postage indicia directly on documents
|
US5819240A
(en)
|
1995-10-11 |
1998-10-06 |
E-Stamp Corporation |
System and method for generating personalized postage indica
|
US6151590A
(en)
|
1995-12-19 |
2000-11-21 |
Pitney Bowes Inc. |
Network open metering system
|
US5828772A
(en)
*
|
1995-12-27 |
1998-10-27 |
Lucent Technologies Inc. |
Method and apparatus for parametric signature verification using global features and stroke-direction codes
|
US5838814A
(en)
*
|
1996-01-02 |
1998-11-17 |
Moore; Steven Jerome |
Security check method and apparatus
|
US5969325A
(en)
|
1996-06-03 |
1999-10-19 |
Accu-Sort Systems, Inc. |
High speed image acquisition system and method of processing and decoding barcode symbol
|
US5710814A
(en)
|
1996-07-23 |
1998-01-20 |
Cheyenne Property Trust |
Cryptographic unit touch point logic
|
US5799112A
(en)
|
1996-08-30 |
1998-08-25 |
Xerox Corporation |
Method and apparatus for wavelet-based universal halftone image unscreening
|
US5765176A
(en)
|
1996-09-06 |
1998-06-09 |
Xerox Corporation |
Performing document image management tasks using an iconic image having embedded encoded information
|
US5982506A
(en)
*
|
1996-09-10 |
1999-11-09 |
E-Stamp Corporation |
Method and system for electronic document certification
|
GB9621274D0
(en)
*
|
1996-10-11 |
1996-11-27 |
Certicom Corp |
Signature protocol for mail delivery
|
US5946415A
(en)
|
1996-10-24 |
1999-08-31 |
The United States Of America As Represented By The Secretary Of The Army |
Method and apparatus to process drawing images
|
US5974147A
(en)
|
1996-11-07 |
1999-10-26 |
Pitney Bowes Inc. |
Method of verifying unreadable indicia for an information-based indicia program
|
US6064738A
(en)
|
1996-12-10 |
2000-05-16 |
The Research Foundation Of State University Of New York |
Method for encrypting and decrypting data using chaotic maps
|
US5982896A
(en)
|
1996-12-23 |
1999-11-09 |
Pitney Bowes Inc. |
System and method of verifying cryptographic postage evidencing using a fixed key set
|
US5871288A
(en)
|
1996-12-24 |
1999-02-16 |
Pitney Bowes Inc. |
Method for customer selectable module size for an information based indicia
|
US5790703A
(en)
|
1997-01-21 |
1998-08-04 |
Xerox Corporation |
Digital watermarking using conjugate halftone screens
|
US5953426A
(en)
|
1997-02-11 |
1999-09-14 |
Francotyp-Postalia Ag & Co. |
Method and arrangement for generating and checking a security imprint
|
US5974200A
(en)
|
1997-03-20 |
1999-10-26 |
Matsushita Electric Industrial Company, Ltd. |
Method of locating a machine readable two dimensional barcode within an image
|
US5835615A
(en)
|
1997-03-24 |
1998-11-10 |
Synex |
Bar code printability gauge
|
US5880451A
(en)
|
1997-04-24 |
1999-03-09 |
United Parcel Service Of America, Inc. |
System and method for OCR assisted bar code decoding
|
JPH10320497A
(ja)
|
1997-05-16 |
1998-12-04 |
Olympus Optical Co Ltd |
コード読取記録装置
|
KR100251048B1
(ko)
|
1997-06-19 |
2000-04-15 |
윤종용 |
단일 구조의 부호화가 가능한 주변 화소 성향 값을 이용한 격주사선 처리 부호화 방법
|
US5947200A
(en)
*
|
1997-09-25 |
1999-09-07 |
Atlantic Richfield Company |
Method for fracturing different zones from a single wellbore
|
US6000332A
(en)
|
1997-09-30 |
1999-12-14 |
Cyrk, Inc. |
Process for achieving a lenticular effect by screen printing
|
US5996893A
(en)
|
1997-10-28 |
1999-12-07 |
Eastman Kodak Company |
Method and apparatus for visually identifying an area on a photograph or image where digital data is stored
|
US6601172B1
(en)
*
|
1997-12-31 |
2003-07-29 |
Philips Electronics North America Corp. |
Transmitting revisions with digital signatures
|
TW355781B
(en)
|
1998-01-09 |
1999-04-11 |
Winbond Electronics Corp |
Apparatus and method for 2-stage compression using half-tone method
|
US6212504B1
(en)
|
1998-01-12 |
2001-04-03 |
Unisys Corporation |
Self-authentication of value documents using encoded indices
|
US6064764A
(en)
|
1998-03-30 |
2000-05-16 |
Seiko Epson Corporation |
Fragile watermarks for detecting tampering in images
|
US6175827B1
(en)
|
1998-03-31 |
2001-01-16 |
Pitney Bowes Inc. |
Robus digital token generation and verification system accommodating token verification where addressee information cannot be recreated automated mail processing
|
US6263086B1
(en)
|
1998-04-15 |
2001-07-17 |
Xerox Corporation |
Automatic detection and retrieval of embedded invisible digital watermarks from halftone images
|
US5964414A
(en)
*
|
1998-04-30 |
1999-10-12 |
Stoneage, Inc |
High pressure liquid rotary nozzle with viscous retarder
|
US6252675B1
(en)
|
1998-05-08 |
2001-06-26 |
Xerox Corporation |
Apparatus and method for halftone hybrid screen generation
|
US6201901B1
(en)
|
1998-06-01 |
2001-03-13 |
Matsushita Electronic Industrial Co., Ltd. |
Border-less clock free two-dimensional barcode and method for printing and reading the same
|
EP0977141A3
(de)
|
1998-07-31 |
2003-04-23 |
Sony Corporation |
Informationsverarbeitungsgerät und -Verfahren
|
US6256398B1
(en)
|
1998-08-22 |
2001-07-03 |
Kenneth H. P. Chang |
Encoding and decoding a message within an image
|
US5946414A
(en)
|
1998-08-28 |
1999-08-31 |
Xerox Corporation |
Encoding data in color images using patterned color modulated image regions
|
JP2000099501A
(ja)
*
|
1998-09-17 |
2000-04-07 |
Internatl Business Mach Corp <Ibm> |
文書データへの情報の埋め込み方法およびシステム
|
US6141441A
(en)
|
1998-09-28 |
2000-10-31 |
Xerox Corporation |
Decoding data from patterned color modulated image regions in a color image
|
US6470096B2
(en)
|
1998-11-13 |
2002-10-22 |
Xerox Corporation |
Method for locating user interface tags in a document processing system
|
US6427021B1
(en)
|
1998-12-02 |
2002-07-30 |
Pitney Bowes Inc. |
Recording graphical and tracking information on the face of a mailpiece
|
US6240196B1
(en)
|
1998-12-18 |
2001-05-29 |
Pitney Bowes Inc. |
Mail generation system with enhanced security by use of modified print graphic information
|
US6307955B1
(en)
*
|
1998-12-18 |
2001-10-23 |
Topaz Systems, Inc. |
Electronic signature management system
|
US6748533B1
(en)
*
|
1998-12-23 |
2004-06-08 |
Kent Ridge Digital Labs |
Method and apparatus for protecting the legitimacy of an article
|
JP2000235617A
(ja)
|
1999-02-17 |
2000-08-29 |
Olympus Optical Co Ltd |
データ読取装置
|
US6457651B2
(en)
|
1999-10-01 |
2002-10-01 |
Xerox Corporation |
Dual mode, dual information, document bar coding and reading system
|
US6526155B1
(en)
|
1999-11-24 |
2003-02-25 |
Xerox Corporation |
Systems and methods for producing visible watermarks by halftoning
|
US6398117B1
(en)
|
2000-01-14 |
2002-06-04 |
Hewlett-Packard Co. |
Method and system for combining bar codes of different encoding dimensions
|
US6493110B1
(en)
|
2000-04-05 |
2002-12-10 |
Gregory B. Roberts |
System and method for bar code rendering and recognition
|
US6373587B1
(en)
|
2000-05-19 |
2002-04-16 |
Pitney Bowes Inc. |
Method for printing electronic tickets
|
US7107453B2
(en)
|
2000-05-25 |
2006-09-12 |
Hewlett-Packard Development Company, L.P. |
Authenticatable graphical bar codes
|
US6938017B2
(en)
|
2000-12-01 |
2005-08-30 |
Hewlett-Packard Development Company, L.P. |
Scalable, fraud resistant graphical payment indicia
|