DE69634584D1 - Optische Abtaster - Google Patents

Optische Abtaster

Info

Publication number
DE69634584D1
DE69634584D1 DE69634584T DE69634584T DE69634584D1 DE 69634584 D1 DE69634584 D1 DE 69634584D1 DE 69634584 T DE69634584 T DE 69634584T DE 69634584 T DE69634584 T DE 69634584T DE 69634584 D1 DE69634584 D1 DE 69634584D1
Authority
DE
Germany
Prior art keywords
optical scanner
scanner
optical
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.)
Expired - Lifetime
Application number
DE69634584T
Other languages
English (en)
Other versions
DE69634584T2 (de
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.)
Symbol Technologies LLC
Original Assignee
Symbol Technologies LLC
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
Priority claimed from US08/455,216 external-priority patent/US6170749B1/en
Priority claimed from US08/454,830 external-priority patent/US5734152A/en
Application filed by Symbol Technologies LLC filed Critical Symbol Technologies LLC
Publication of DE69634584D1 publication Critical patent/DE69634584D1/de
Application granted granted Critical
Publication of DE69634584T2 publication Critical patent/DE69634584T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
    • G06K7/10544—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum
    • G06K7/10821—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum further details of bar or optical code scanning devices
    • G06K7/10851—Circuits for pulse shaping, amplifying, eliminating noise signals, checking the function of the sensing device
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
    • G06K7/10544—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
    • G06K7/14—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation using light without selection of wavelength, e.g. sensing reflected white light
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
    • G06K7/14—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation using light without selection of wavelength, e.g. sensing reflected white light
    • G06K7/1404—Methods for optical code recognition
    • G06K7/1439—Methods for optical code recognition including a method step for retrieval of the optical code
    • G06K7/1452—Methods for optical code recognition including a method step for retrieval of the optical code detecting bar code edges
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
    • G06K7/14—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation using light without selection of wavelength, e.g. sensing reflected white light
    • G06K7/1404—Methods for optical code recognition
    • G06K7/146—Methods for optical code recognition the method including quality enhancement steps
    • G06K7/1478—Methods for optical code recognition the method including quality enhancement steps adapting the threshold for pixels in a CMOS or CCD pixel sensor for black and white recognition
DE1996634584 1995-05-31 1996-05-31 Optische Abtaster Expired - Lifetime DE69634584T2 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US455216 1989-12-22
US08/455,216 US6170749B1 (en) 1995-05-31 1995-05-31 Method of scanning indicia using selective sampling
US08/454,830 US5734152A (en) 1995-05-31 1995-05-31 Optical scanners and signal processors therefor
US454830 1995-05-31

Publications (2)

Publication Number Publication Date
DE69634584D1 true DE69634584D1 (de) 2005-05-19
DE69634584T2 DE69634584T2 (de) 2005-09-15

Family

ID=27037620

Family Applications (3)

Application Number Title Priority Date Filing Date
DE1996636205 Expired - Lifetime DE69636205T2 (de) 1995-05-31 1996-05-31 Optischer Abtaster
DE1996637397 Expired - Lifetime DE69637397T2 (de) 1995-05-31 1996-05-31 Optischer Barcode Abtaster
DE1996634584 Expired - Lifetime DE69634584T2 (de) 1995-05-31 1996-05-31 Optische Abtaster

Family Applications Before (2)

Application Number Title Priority Date Filing Date
DE1996636205 Expired - Lifetime DE69636205T2 (de) 1995-05-31 1996-05-31 Optischer Abtaster
DE1996637397 Expired - Lifetime DE69637397T2 (de) 1995-05-31 1996-05-31 Optischer Barcode Abtaster

Country Status (2)

Country Link
EP (3) EP1443450B1 (de)
DE (3) DE69636205T2 (de)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6513714B1 (en) 1998-09-14 2003-02-04 Psc Scanning, Inc. Character reconstruction and element level processing in bar code scanning system
US6454168B1 (en) 1998-09-14 2002-09-24 Psc Scanning, Inc. Correlation and stitching techniques in a bar code scanning system
US6494376B1 (en) 1998-09-14 2002-12-17 Psc Scanning, Inc. Compensation for scan line variations in a bar code scanner system
US6585157B2 (en) 1998-09-14 2003-07-01 Psc Scanning, Inc. Symbology determination to aid decoding in a bar code scanning system
CN100395768C (zh) * 1998-10-30 2008-06-18 讯宝科技公司 改进的包括隧道扫描器的集成的代码阅读系统
EP1380983B1 (de) * 1998-10-30 2006-05-24 Symbol Technologies, Inc. Kodelesesystem mit Klangregelung für hörbares Signal
US6508405B1 (en) 2000-11-14 2003-01-21 Ncr Corporation Methods and apparatus for area weighted means processing of barcode signals
EP1357505A4 (de) * 2001-01-26 2006-02-08 Fujitsu Ltd Informationsleseverfahren und einrichtung, signalerfassungsverfahren für eine informationsleseeinrichtung, bandbegrenzungsverfahren dafür, zeitsteuerungspunktamplitudenextraktionsverfahren dafür und signalverarbeitungsverfahren dafür, lesesignalverarbeitungseinheit und lese s
US7204422B2 (en) * 2004-06-10 2007-04-17 Psc Scanning, Inc. System, circuit, and method for edge detection in a binary optical code
US7506816B2 (en) * 2004-10-04 2009-03-24 Datalogic Scanning, Inc. System and method for determining a threshold for edge detection based on an undifferentiated equalized scan line signal
US20080283605A1 (en) * 2007-05-16 2008-11-20 Sik Piu Kwan Device and system for a low noise photodiode in a barcode scanner
US8302864B2 (en) 2007-12-28 2012-11-06 Cognex Corporation Method and apparatus using aiming pattern for machine vision training
US10498933B2 (en) 2011-11-22 2019-12-03 Cognex Corporation Camera system with exchangeable illumination assembly
US8947590B2 (en) 2011-11-22 2015-02-03 Cognex Corporation Vision system camera with mount for multiple lens types
US11366284B2 (en) 2011-11-22 2022-06-21 Cognex Corporation Vision system camera with mount for multiple lens types and lens module for the same
US9746636B2 (en) 2012-10-19 2017-08-29 Cognex Corporation Carrier frame and circuit board for an electronic device
FR3076129B1 (fr) * 2017-12-27 2020-01-10 Commissariat A L'energie Atomique Et Aux Energies Alternatives Procede de modulation de largeur d'impulsions

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2635207B1 (fr) * 1988-08-02 1990-10-19 Sud Systemes Procede et dispositif de traitement d'un signal electrique analogique en vue d'obtenir un signal binaire parametrable representatif de sa composante significative
JP2729088B2 (ja) * 1989-09-22 1998-03-18 富士通株式会社 バーコードリーダ処理装置
DE69233513T2 (de) * 1991-07-11 2006-01-26 United Parcel Service Of America, Inc. System und Verfahren zur digitalen Filterung
US5298728A (en) * 1991-11-01 1994-03-29 Spectra-Physics Scanning System, Inc. Signal processing apparatus and method
US6082621A (en) * 1992-04-02 2000-07-04 Symbol Technologies, Inc. Interface between threshold processing digitizer for bar code reader
US5302813A (en) * 1992-04-02 1994-04-12 Symbol Technologies, Inc. Multi-bit digitizer
CA2134698A1 (en) * 1993-11-17 1995-05-18 Raj Bridgelall Digitizer for bar code reader

Also Published As

Publication number Publication date
EP0745951B1 (de) 2005-04-13
EP1443450B1 (de) 2008-01-02
DE69636205T2 (de) 2007-04-26
EP1443450A2 (de) 2004-08-04
DE69637397D1 (de) 2008-02-14
EP1445725A3 (de) 2005-08-24
EP0745951A3 (de) 2001-03-28
EP0745951A2 (de) 1996-12-04
EP1445725B1 (de) 2006-05-31
DE69637397T2 (de) 2009-01-02
EP1443450A3 (de) 2005-08-24
EP1445725A2 (de) 2004-08-11
DE69634584T2 (de) 2005-09-15
DE69636205D1 (de) 2006-07-06

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Representative=s name: MEISSNER, BOLTE & PARTNER GBR, 80538 MUENCHEN

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