CA2241874A1 - Pixel splitting to improve bar code readability - Google Patents

Pixel splitting to improve bar code readability

Info

Publication number
CA2241874A1
CA2241874A1 CA002241874A CA2241874A CA2241874A1 CA 2241874 A1 CA2241874 A1 CA 2241874A1 CA 002241874 A CA002241874 A CA 002241874A CA 2241874 A CA2241874 A CA 2241874A CA 2241874 A1 CA2241874 A1 CA 2241874A1
Authority
CA
Canada
Prior art keywords
bar code
bars
bar
code
adjacent
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002241874A
Other languages
French (fr)
Other versions
CA2241874C (en
Inventor
Ronald P. Sansone
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Pitney Bowes Inc
Original Assignee
Pitney Bowes Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Pitney Bowes Inc filed Critical Pitney Bowes Inc
Publication of CA2241874A1 publication Critical patent/CA2241874A1/en
Application granted granted Critical
Publication of CA2241874C publication Critical patent/CA2241874C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K1/00—Methods or arrangements for marking the record carrier in digital fashion
    • G06K1/12—Methods or arrangements for marking the record carrier in digital fashion otherwise than by punching
    • G06K1/121—Methods or arrangements for marking the record carrier in digital fashion otherwise than by punching by printing code marks

Abstract

An apparatus and method for removing fractions of a pixel from bar code bars to maintain the correct distance between adjacent correctly sized code forming bars. Thus, the distance between adjacent code forming bars will be constant and accurate. The foregoing is accomplished by varying a parameter of the beam or ink droplet that is used to produce the bar so that the bar width and space between adjacent code forming bars will be accurately maintained. Hence, bars of a bar code will be accurately reproduced to enable the bar code to be accurately read.
CA002241874A 1997-06-30 1998-06-29 Pixel splitting to improve bar code readability Expired - Fee Related CA2241874C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/885,208 1997-06-30
US08/885,208 US5890818A (en) 1997-06-30 1997-06-30 Pixel splitting to improve bar code readability

Publications (2)

Publication Number Publication Date
CA2241874A1 true CA2241874A1 (en) 1998-12-30
CA2241874C CA2241874C (en) 2002-02-19

Family

ID=25386401

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002241874A Expired - Fee Related CA2241874C (en) 1997-06-30 1998-06-29 Pixel splitting to improve bar code readability

Country Status (7)

Country Link
US (1) US5890818A (en)
EP (1) EP0889428B1 (en)
JP (1) JPH11120274A (en)
CN (1) CN1110750C (en)
AU (1) AU729477B2 (en)
CA (1) CA2241874C (en)
DE (1) DE69836051T2 (en)

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* Cited by examiner, † Cited by third party
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US6311892B1 (en) * 1997-08-12 2001-11-06 Bell & Howell Postal Systems, Inc. Automatic system for verifying articles containing indicia thereon
US6964367B2 (en) * 1997-08-12 2005-11-15 Bowe Bell + Howell Company Automatic system for verifying articles containing indicia thereon
US6069616A (en) * 1997-12-30 2000-05-30 Rozum, Jr.; Andrew L. Postal security device with computer keyboard interface
US7299989B2 (en) * 2000-12-15 2007-11-27 Symbol Technologies, Inc. System and method for decoding and encoding compensated optical codes
US6834803B2 (en) * 2000-12-15 2004-12-28 Symbol Technologies, Inc. Ink-spread compensated bar code symbology and compensation methods
EP1220529A3 (en) * 2000-12-28 2003-06-25 Seiko Epson Corporation System and method for generating logo data, and data storage medium
US7428074B2 (en) * 2000-12-28 2008-09-23 Seiko Epson Corporation Logo data generating apparatus, logo data generating method, and data storage medium
US7283275B2 (en) * 2000-12-28 2007-10-16 Seiko Epson Corporation Logo data generating apparatus, logo data generating method, and data storage medium
JP2006107600A (en) * 2004-10-04 2006-04-20 Taiyo Yuden Co Ltd Optical information recording medium and its manufacturing method
US7461917B2 (en) * 2004-12-09 2008-12-09 Hewlett-Packard Development Company, L.P. Printing a bar in a bar code
US9299196B2 (en) * 2004-12-22 2016-03-29 Pitney Bowes Inc. Method and system for high speed printing using drop-on demand technology that compensates for droplet satellites
US7237721B2 (en) 2005-05-24 2007-07-03 Nokia Corporation Image processing for pattern detection
GB2431270A (en) * 2005-10-13 2007-04-18 Hewlett Packard Development Co Data encoding pattern comprised of shape adjusted markings
JP2009020766A (en) * 2007-07-12 2009-01-29 Canon Finetech Inc Test chart and test pattern
JP2008305137A (en) * 2007-06-07 2008-12-18 Canon Finetech Inc Bar-code generation system, bar-code generation program and printer
JP2009066859A (en) * 2007-09-12 2009-04-02 Canon Finetech Inc Barcode generation system, barcode generation program, printing device, and test chart
JP5251400B2 (en) * 2008-09-10 2013-07-31 株式会社リコー Image forming apparatus and printing method of image forming apparatus

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5268680A (en) * 1970-09-08 1993-12-07 Raytheon Company Combined infrared-radar detection system
US4386272C1 (en) * 1978-07-07 2001-02-06 Pitney Bowes Inc Apparatus and method for generating images by producing light spots of different sizes
EP0183535B1 (en) * 1984-11-30 1992-04-29 Tohoku Ricoh Co., Ltd. Self-correcting printer-verifier
US4795281A (en) * 1984-11-30 1989-01-03 Tohoku Ricoh Co., Ltd. Self-correcting printer-verifier
JPS63133282A (en) * 1986-11-26 1988-06-06 Nippon Denso Co Ltd Bar code label
US4810867A (en) * 1987-02-04 1989-03-07 M. E. Cunningham Company Bar code marking the surface of an object
KR930000021B1 (en) * 1988-07-20 1993-01-06 도오꾜오 덴끼 가부시끼가이샤 Method and apparatus for printing barcode
US4847641A (en) * 1988-08-16 1989-07-11 Hewlett-Packard Company Piece-wise print image enhancement for dot matrix printers
US5400058A (en) * 1989-02-03 1995-03-21 Monarch Marking Systems, Inc. Thermal print head control for printing serial bar codes
US4960336A (en) * 1990-01-26 1990-10-02 Ncr Corporation Apparatus and method for calibrating printing at a specified distance from a document edge
JP3034975B2 (en) * 1991-03-26 2000-04-17 株式会社東芝 Pattern feature extraction method
JPH0780322B2 (en) * 1991-06-12 1995-08-30 東北リコー株式会社 Bar code printing method in bar code printer
US5438636A (en) * 1992-05-14 1995-08-01 United Parcel Service Of America, Inc. Apparatus for simultaneously convolving multiple digital binary images using a single convolver with a binary mask to determine pixel densities
GB9325439D0 (en) * 1993-12-13 1994-02-16 Ncr Int Inc Barcode reading method and apparatus
US5564841A (en) * 1994-09-13 1996-10-15 Intermec Corporation System and method for dynamic adjustment of bar code printer parameters
US5488223A (en) * 1994-09-13 1996-01-30 Intermec Corporation System and method for automatic selection of printer control parameters
US5676473A (en) * 1996-04-24 1997-10-14 Intermec Corporation Method and apparatus for U.P.C./ean symbology ambiguous character compensation by localized thermal energy dot adjustment

Also Published As

Publication number Publication date
EP0889428A3 (en) 2003-10-08
EP0889428B1 (en) 2006-10-04
AU729477B2 (en) 2001-02-01
CN1206146A (en) 1999-01-27
CA2241874C (en) 2002-02-19
DE69836051T2 (en) 2007-05-03
JPH11120274A (en) 1999-04-30
EP0889428A2 (en) 1999-01-07
DE69836051D1 (en) 2006-11-16
US5890818A (en) 1999-04-06
AU7392198A (en) 1999-01-07
CN1110750C (en) 2003-06-04

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