DE69005277D1 - Streifenkodeleser mit Randdetektionsverbesserung. - Google Patents

Streifenkodeleser mit Randdetektionsverbesserung.

Info

Publication number
DE69005277D1
DE69005277D1 DE90119615T DE69005277T DE69005277D1 DE 69005277 D1 DE69005277 D1 DE 69005277D1 DE 90119615 T DE90119615 T DE 90119615T DE 69005277 T DE69005277 T DE 69005277T DE 69005277 D1 DE69005277 D1 DE 69005277D1
Authority
DE
Germany
Prior art keywords
bar code
edge detection
code reader
detection improvement
improvement
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 - Fee Related
Application number
DE90119615T
Other languages
English (en)
Other versions
DE69005277T2 (de
Inventor
Boris Metlitsky
Edward Barkan
Jerome Swartz
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
Application filed by Symbol Technologies LLC filed Critical Symbol Technologies LLC
Publication of DE69005277D1 publication Critical patent/DE69005277D1/de
Application granted granted Critical
Publication of DE69005277T2 publication Critical patent/DE69005277T2/de
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
    • 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
    • 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
    • G06K7/10881—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 constructional details of hand-held scanners

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Artificial Intelligence (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Mechanical Optical Scanning Systems (AREA)
  • Optical Radar Systems And Details Thereof (AREA)
DE69005277T 1989-11-20 1990-10-12 Streifenkodeleser mit Randdetektionsverbesserung. Expired - Fee Related DE69005277T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/438,022 US5140146A (en) 1989-11-20 1989-11-20 Bar code symbol reader with modulation enhancement

Publications (2)

Publication Number Publication Date
DE69005277D1 true DE69005277D1 (de) 1994-01-27
DE69005277T2 DE69005277T2 (de) 1994-07-07

Family

ID=23738886

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69005277T Expired - Fee Related DE69005277T2 (de) 1989-11-20 1990-10-12 Streifenkodeleser mit Randdetektionsverbesserung.

Country Status (5)

Country Link
US (1) US5140146A (de)
EP (1) EP0433593B1 (de)
JP (1) JPH03175590A (de)
CA (1) CA2026371A1 (de)
DE (1) DE69005277T2 (de)

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US20020100804A1 (en) * 1990-09-10 2002-08-01 Sung Ho Byun Hand-held compact ergonomic laser scanner with integrated scanner activation or data transmission switch in scanner housing
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US5504318A (en) * 1991-09-13 1996-04-02 Symbol Technologies, Inc. Analog waveform decoder using peak locations
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US6082621A (en) * 1992-04-02 2000-07-04 Symbol Technologies, Inc. Interface between threshold processing digitizer for bar code reader
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US5734152A (en) * 1995-05-31 1998-03-31 Symbol Technologies, Inc. Optical scanners and signal processors therefor
US5449893A (en) * 1992-04-02 1995-09-12 Symbol Technologies, Inc. Digitizer for bar code reader
US6170749B1 (en) 1995-05-31 2001-01-09 Symbol Technologies, Inc. Method of scanning indicia using selective sampling
US5461223A (en) * 1992-10-09 1995-10-24 Eastman Kodak Company Bar code detecting circuitry
US5371361A (en) * 1993-02-01 1994-12-06 Spectra-Physics Scanning Systems, Inc. Optical processing system
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US5675136A (en) * 1994-03-30 1997-10-07 Leuze Electronic Gmbh + Co. Optoelectric device for the recognition of contrast marks
DE4414449C2 (de) * 1994-04-26 1996-03-14 Leuze Electronic Gmbh & Co Optoelektronische Vorrichtung zum Erkennen von Kontrastmarken
US5536924A (en) * 1994-06-07 1996-07-16 Intermec Corporation Method and apparatus for matrix symbology imager
US5979767A (en) * 1995-08-11 1999-11-09 Scantech B.V. Portable multi-directional bar code scanner
US6330974B1 (en) 1996-03-29 2001-12-18 Intermec Ip Corp. High resolution laser imager for low contrast symbology
US5844222A (en) * 1996-07-02 1998-12-01 Intermec Corporation Rastering laser scanner with beam location feedback
US5811777A (en) * 1996-07-11 1998-09-22 Intermec Corporation Method and apparatus for utilizing specular light to image low contrast symbols
US6367699B2 (en) 1996-07-11 2002-04-09 Intermec Ip Corp. Method and apparatus for utilizing specular light to image low contrast symbols
US6073849A (en) * 1996-11-01 2000-06-13 Psc Scanning, Inc. Electronic edge detection system using a second derivative signal processor
US6000616A (en) * 1997-05-12 1999-12-14 Webscan, Inc. Methods to determine and selectively sample positive and negative peak values occurring within a scan reflectance profile signal
US6065236A (en) * 1997-06-20 2000-05-23 Schneider; Cynthia Picture framing system
EP1205873B1 (de) * 2000-11-14 2006-09-27 Datalogic S.P.A. Verfahren zur Lokalisierung der Übergänge zwischen Teilen eines Streifenkodes
US7128266B2 (en) * 2003-11-13 2006-10-31 Metrologic Instruments. Inc. Hand-supportable digital imaging-based bar code symbol reader supporting narrow-area and wide-area modes of illumination and image capture
ATE431950T1 (de) † 2000-12-21 2009-06-15 Datalogic Spa Verfahren und vorrichtung zur fokussierung eines elektrischen signals, welches einen optischen kode repräsentiert
US7478754B2 (en) * 2003-08-25 2009-01-20 Symbol Technologies, Inc. Axial chromatic aberration auto-focusing system and method
CA2546289A1 (en) * 2003-11-13 2005-06-02 Metrologic Instruments, Inc. Hand-supportable imaging-based bar code symbol reader supporting narrow-area and wide-area modes of illumination and image capture
US7216811B2 (en) 2004-04-16 2007-05-15 Microscan Systems Incorporated Barcode scanner with linear automatic gain control (AGC), modulation transfer function detector, and selectable noise filter
US7306154B2 (en) * 2004-10-21 2007-12-11 Optoelectronics Co., Ltd. Barcode scanning system with a compensation circuit
US8047440B2 (en) * 2005-05-26 2011-11-01 Symbol Technologies, Inc. Method and system for decoding a barcode
US7866549B2 (en) * 2006-03-23 2011-01-11 Picacho Partners LLC Identification data decoder
JP2011503712A (ja) * 2007-11-08 2011-01-27 株式会社オプトエレクトロニクス 光線検知のための信号処理
US20100219246A1 (en) * 2007-11-08 2010-09-02 Optoelectronics Co. Ltd. Signal processing for light beam sensing
US9151679B2 (en) * 2008-06-30 2015-10-06 Intel Corporation Temperature measurement in electronic devices
US8873892B2 (en) 2012-08-21 2014-10-28 Cognex Corporation Trainable handheld optical character recognition systems and methods
US10068153B2 (en) * 2012-08-21 2018-09-04 Cognex Corporation Trainable handheld optical character recognition systems and methods
CN105809081A (zh) * 2014-12-31 2016-07-27 青岛中科软件股份有限公司 基于蓝牙技术的条码实时接口***

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US3798458A (en) * 1972-10-30 1974-03-19 Ibm Optical scanner including an aperture design for non-synchronous detection of bar codes
US4000397A (en) * 1975-03-21 1976-12-28 Spectra-Physics, Inc. Signal processor method and apparatus
US4016660A (en) * 1975-08-01 1977-04-12 Barbara Salvatore Ingalls Educational system alphabet cards
US4007377A (en) * 1975-09-08 1977-02-08 The Singer Company Optical scanning system for universal product code
US4016481A (en) * 1975-11-26 1977-04-05 Gte Automatic Electric Laboratories Incorporated Unmatched field effect transistors providing matched voltage-controlled resistances
US4251798A (en) * 1978-05-31 1981-02-17 Symbol Technologies Portable laser scanning arrangement for and method of evaluating and validating bar code symbols
US4360798A (en) * 1978-05-31 1982-11-23 Symbol Technologies, Inc. Portable laser scanning arrangement for and method of evaluating and validating bar code symbols
US4243988A (en) * 1979-03-01 1981-01-06 The Bendix Corporation Means for improving angular resolution of incoherent pulse radar systems
US4593186A (en) * 1980-02-29 1986-06-03 Symbol Technologies, Inc. Portable laser scanning system and scanning methods
US4387297B1 (en) * 1980-02-29 1995-09-12 Symbol Technologies Inc Portable laser scanning system and scanning methods
US4496831A (en) * 1980-02-29 1985-01-29 Symbol Technologies, Inc. Portable laser scanning system and scanning methods
US4369361A (en) * 1980-03-25 1983-01-18 Symbol Technologies, Inc. Portable, stand-alone, desk-top laser scanning workstation for intelligent data acquisition terminal and method of scanning
US4394683A (en) * 1980-06-26 1983-07-19 Diffracto Ltd. New photodetector array based optical measurement systems
US4325057A (en) * 1980-06-30 1982-04-13 Bishop-Hall, Inc. School bus approach notification method and apparatus
US4387397A (en) 1981-03-17 1983-06-07 Rca Corporation Integrated circuit interface in a vertical sync circuit
US4673805A (en) * 1982-01-25 1987-06-16 Symbol Technologies, Inc. Narrow-bodied, single- and twin-windowed portable scanning head for reading bar code symbols
US4460120A (en) * 1982-01-25 1984-07-17 Symbol Technologies, Inc. Narrow bodied, single- and twin-windowed portable laser scanning head for reading bar code symbols
US4409470A (en) * 1982-01-25 1983-10-11 Symbol Technologies, Inc. Narrow-bodied, single-and twin-windowed portable laser scanning head for reading bar code symbols
US4758717A (en) * 1982-01-25 1988-07-19 Symbol Technologies, Inc. Narrow-bodied, single-and twin-windowed portable laser scanning head for reading bar code symbols
US4736095A (en) * 1982-01-25 1988-04-05 Symbol Technologies, Inc. Narrow-bodied, single- and twin-windowed portable laser scanning head for reading bar code symbols
US4575625A (en) * 1983-09-27 1986-03-11 Knowles Carl H Integral hand-held laser scanner
US4548211A (en) * 1984-01-12 1985-10-22 Marks Lloyd A Computer assisted admittance plethysmograph
US4607156A (en) * 1984-03-26 1986-08-19 Symbol Technologies, Inc. Shock-resistant support structure for use in portable laser scanning heads
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US4835374A (en) * 1985-02-28 1989-05-30 Symbol Technologies, Inc. Portable laser diode scanning head
JPS61251980A (ja) * 1985-02-28 1986-11-08 シンボル　テクノロジイズ　インコ−ポレイテツド 携帯用レ−ザダイオ−ド走査ヘツド
JP2641421B2 (ja) * 1985-03-22 1997-08-13 株式会社日立製作所 光学的検出方法、光学的情報再生装置、及び信号検出回路
DE3601083A1 (de) * 1986-01-16 1987-07-23 Krieg Gunther Verfahren und system zum lesen von strichcodes
US4740675A (en) * 1986-04-10 1988-04-26 Hewlett-Packard Company Digital bar code slot reader with threshold comparison of the differentiated bar code signal
US4877949A (en) * 1986-08-08 1989-10-31 Norand Corporation Hand-held instant bar code reader system with automated focus based on distance measurements
US4870262A (en) * 1987-01-06 1989-09-26 Alps Electric Co., Ltd. Signal processing apparatus and binary encoder circuit for the same
US4808804A (en) * 1987-01-28 1989-02-28 Symbol Technologies, Inc. Bar code symbol readers with variable spot size and/or working distance
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Also Published As

Publication number Publication date
CA2026371A1 (en) 1991-05-21
US5140146A (en) 1992-08-18
JPH03175590A (ja) 1991-07-30
EP0433593B1 (de) 1993-12-15
EP0433593A3 (en) 1991-11-21
EP0433593A2 (de) 1991-06-26
DE69005277T2 (de) 1994-07-07

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee