CN101976327B - 条码扫描器以及用于检测条码的方法 - Google Patents

条码扫描器以及用于检测条码的方法 Download PDF

Info

Publication number
CN101976327B
CN101976327B CN200910149239.4A CN200910149239A CN101976327B CN 101976327 B CN101976327 B CN 101976327B CN 200910149239 A CN200910149239 A CN 200910149239A CN 101976327 B CN101976327 B CN 101976327B
Authority
CN
China
Prior art keywords
signal
gain
analog signal
barcode
value
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
CN200910149239.4A
Other languages
English (en)
Chinese (zh)
Other versions
CN101976327A (zh
Inventor
J·J·科尔斯塔
B·L·达维斯
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.)
Omron Microscan Systems Inc
Original Assignee
Microscan Systems 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 Microscan Systems Inc filed Critical Microscan Systems Inc
Publication of CN101976327A publication Critical patent/CN101976327A/zh
Application granted granted Critical
Publication of CN101976327B publication Critical patent/CN101976327B/zh
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • Artificial Intelligence (AREA)
  • Toxicology (AREA)
  • General Health & Medical Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Control Of Amplification And Gain Control (AREA)
  • Amplifiers (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
  • Image Input (AREA)
CN200910149239.4A 2004-04-16 2005-04-04 条码扫描器以及用于检测条码的方法 Expired - Fee Related CN101976327B (zh)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US10/825944 2004-04-16
US10/825,944 2004-04-16
US10/825,944 US7216811B2 (en) 2004-04-16 2004-04-16 Barcode scanner with linear automatic gain control (AGC), modulation transfer function detector, and selectable noise filter

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CN2005800191883A Division CN101124587B (zh) 2004-04-16 2005-04-04 具有线性自动增益控制(agc)、调制传递函数检测器和可选噪声滤波器的条码扫描器

Publications (2)

Publication Number Publication Date
CN101976327A CN101976327A (zh) 2011-02-16
CN101976327B true CN101976327B (zh) 2014-10-15

Family

ID=35095275

Family Applications (3)

Application Number Title Priority Date Filing Date
CN200910149239.4A Expired - Fee Related CN101976327B (zh) 2004-04-16 2005-04-04 条码扫描器以及用于检测条码的方法
CN200910149238XA Expired - Fee Related CN101645132B (zh) 2004-04-16 2005-04-04 条码扫描器以及用于检测条码的方法
CN2005800191883A Expired - Fee Related CN101124587B (zh) 2004-04-16 2005-04-04 具有线性自动增益控制(agc)、调制传递函数检测器和可选噪声滤波器的条码扫描器

Family Applications After (2)

Application Number Title Priority Date Filing Date
CN200910149238XA Expired - Fee Related CN101645132B (zh) 2004-04-16 2005-04-04 条码扫描器以及用于检测条码的方法
CN2005800191883A Expired - Fee Related CN101124587B (zh) 2004-04-16 2005-04-04 具有线性自动增益控制(agc)、调制传递函数检测器和可选噪声滤波器的条码扫描器

Country Status (6)

Country Link
US (4) US7216811B2 (cg-RX-API-DMAC7.html)
EP (2) EP2112618B1 (cg-RX-API-DMAC7.html)
JP (2) JP2007534062A (cg-RX-API-DMAC7.html)
KR (2) KR101107033B1 (cg-RX-API-DMAC7.html)
CN (3) CN101976327B (cg-RX-API-DMAC7.html)
WO (1) WO2005106768A2 (cg-RX-API-DMAC7.html)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
US8136721B2 (en) * 2006-05-12 2012-03-20 International Business Machines Corporation Enhanced check code line image capture for improved OCR
US8820645B2 (en) * 2007-09-28 2014-09-02 Symbol Technologies, Inc. Method and system for optimizing system settings of a laser scanner control system
US20100219246A1 (en) * 2007-11-08 2010-09-02 Optoelectronics Co. Ltd. Signal processing for light beam sensing
EP2218034A4 (en) * 2007-11-08 2011-01-26 Optoelectronics Co Ltd SIGNAL PROCESSING FOR DETECTION OF LIGHT BEAMS
US8622302B2 (en) 2009-03-17 2014-01-07 Datalogic ADC, Inc. Systems and methods for compensating for fixed pattern noise
US8950678B2 (en) 2010-11-17 2015-02-10 Hand Held Products, Inc. Barcode reader with edge detection enhancement
US8983833B2 (en) * 2011-01-24 2015-03-17 Continental Automotive Systems, Inc. Method and apparatus for masking wind noise
DE102011085833B4 (de) * 2011-11-07 2016-03-31 Photonic Sense GmbH Zusammensetzung zur Stabilisierung von Siliziumpartikeln in wässrigen Medien und deren Verwendung
US9465967B2 (en) 2012-11-14 2016-10-11 Hand Held Products, Inc. Apparatus comprising light sensing assemblies with range assisted gain control
TW201531951A (zh) * 2014-02-07 2015-08-16 Cipherlad Co Ltd 可動態切換的條碼讀取方法
CN104182714B (zh) * 2014-08-22 2017-05-10 深圳市兴通物联科技有限公司 校正信号畸变的方法及激光条码扫描平台
WO2018013177A1 (en) * 2016-07-14 2018-01-18 Zebrasci, Inc. Method of tracking and tracing syringes in the pharmaceutical industry
TWI609331B (zh) * 2016-11-22 2017-12-21 陳叁豪 具多重光譜的數位浮水印圖像與其設計方法
CN107066909B (zh) * 2016-12-29 2019-11-12 西安中颖电子有限公司 一种周期性一维条码信号加强的方法和模块
EP4092913B1 (en) * 2021-05-18 2024-05-15 Renesas Design Austria GmbH Transmitter with a frequency measurement stage

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5168148A (en) * 1990-12-28 1992-12-01 Symbol Technologies, Inc. Automatic gain control circuit
US20010015815A1 (en) * 1996-04-22 2001-08-23 Yoshinobu Hada Image forming apparatus which excels in reproducibility of colors, fine lines and gradations even in a copy made from a copied image

Family Cites Families (40)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1575098A (en) * 1977-06-15 1980-09-17 Communications Patents Ltd Method for measuring crossview between channels in a wired television broadcasting system
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
JP2581047B2 (ja) * 1986-10-24 1997-02-12 ヤマハ株式会社 楽音信号発生方法
US5705800A (en) * 1996-03-05 1998-01-06 Symbol Technologies, Inc. Laser scanner system for controlling the optical scanning of bar codes
US4963756A (en) * 1989-10-13 1990-10-16 Hewlett-Packard Company Focused line identifier for a bar code reader
US5140146A (en) 1989-11-20 1992-08-18 Symbol Technologies, Inc. Bar code symbol reader with modulation enhancement
US5126545A (en) * 1990-01-16 1992-06-30 Symbol Technologies, Inc. Portable laser scanning system having a motor drive with no DC windings
US5608200A (en) * 1990-09-28 1997-03-04 Symbol Technologies, Inc. Method of collecting and adjusting bar code data from a laser bar code reader
US5270875A (en) * 1990-11-13 1993-12-14 Colorado Memory Systems, Inc. Programmable filter/equalizer for duel speed and density magnetic recording devices
US5200597A (en) * 1991-02-07 1993-04-06 Psc, Inc. Digitally controlled system for scanning and reading bar codes
CA2056272C (en) * 1991-06-14 2001-10-16 Patrick Salatto, Jr. Combined range laser scanner
US5504318A (en) * 1991-09-13 1996-04-02 Symbol Technologies, Inc. Analog waveform decoder using peak locations
US5734152A (en) * 1995-05-31 1998-03-31 Symbol Technologies, Inc. Optical scanners and signal processors therefor
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
US5602376A (en) * 1993-05-07 1997-02-11 Psc Inc. Hand-mounted optical scanner system
DE4414449C2 (de) * 1994-04-26 1996-03-14 Leuze Electronic Gmbh & Co Optoelektronische Vorrichtung zum Erkennen von Kontrastmarken
US5777309A (en) * 1995-10-30 1998-07-07 Intermec Corporation Method and apparatus for locating and decoding machine-readable symbols
US6422467B2 (en) * 1995-12-18 2002-07-23 Metrologic Instruments, Inc. Reading system a variable pass-band
US6036091A (en) * 1995-12-19 2000-03-14 Webscan, Inc. Method and apparatus supporting high speed evaluation of bar code indicia
US5633488A (en) * 1995-12-19 1997-05-27 Webscan, Inc. Method and apparatus to enable the high speed evaluation of bar code indicia
US5852286A (en) * 1996-03-20 1998-12-22 Psc, Inc. Method and apparatus for reducing bandwidth limited noise in bar code scanner
US5760403A (en) * 1996-04-18 1998-06-02 Loral Fairchild Corp. High modulation transfer function CCD X-ray image sensor apparatus and method
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
JP3774797B2 (ja) * 1996-08-20 2006-05-17 ぺんてる株式会社 バ−コ−ドイメ−ジ検出装置
JP4132144B2 (ja) 1997-07-11 2008-08-13 株式会社キーエンス バーコード読取装置
JP3814988B2 (ja) * 1997-10-27 2006-08-30 株式会社デンソー ２次元コード読取装置
US6497366B1 (en) * 1997-12-31 2002-12-24 Ncr Corporation Methods and apparatus for dual channel video recovery in bar code scanners
JP2000163504A (ja) * 1998-11-27 2000-06-16 Olympus Optical Co Ltd シンボル情報読み取り装置
JP4085532B2 (ja) * 1999-08-23 2008-05-14 株式会社デンソー バーコード読取装置
US6502751B1 (en) * 2000-04-26 2003-01-07 Ncr Corporation Methods and apparatus for dual thresholding in processing of barcode signals
ATE431950T1 (de) * 2000-12-21 2009-06-15 Datalogic Spa Verfahren und vorrichtung zur fokussierung eines elektrischen signals, welches einen optischen kode repräsentiert
CN2461080Y (zh) * 2001-01-15 2001-11-21 吴美燕 激光条码扫描机的讯号处理装置
WO2003073153A1 (en) * 2002-02-27 2003-09-04 Cdm Optics, Inc. Optimized image processing for wavefront coded imaging systems
JP2003308476A (ja) * 2002-04-12 2003-10-31 Toshiba Corp バーコード読み取り装置
US20030215791A1 (en) * 2002-05-20 2003-11-20 Applied Spectral Imaging Ltd. Method of and system for multiplexed analysis by spectral imaging
JP3999055B2 (ja) * 2002-06-10 2007-10-31 株式会社オプトエレクトロニクス 信号検出処理回路
JP4565192B2 (ja) * 2003-03-31 2010-10-20 オムニビジョン テクノロジーズ， インコーポレイテッド 画像システムにおける収差を生じる影響を最小化するための、システムおよび方法
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
US7291856B2 (en) * 2005-04-28 2007-11-06 Honeywell International Inc. Sensor and methods for measuring select components in moving sheet products

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5168148A (en) * 1990-12-28 1992-12-01 Symbol Technologies, Inc. Automatic gain control circuit
US20010015815A1 (en) * 1996-04-22 2001-08-23 Yoshinobu Hada Image forming apparatus which excels in reproducibility of colors, fine lines and gradations even in a copy made from a copied image

Also Published As

Publication number Publication date
JP2010267293A (ja) 2010-11-25
US7216811B2 (en) 2007-05-15
US7743993B2 (en) 2010-06-29
EP2112618B1 (en) 2015-04-01
CN101645132A (zh) 2010-02-10
US20070170260A1 (en) 2007-07-26
WO2005106768A3 (en) 2007-04-19
US20070215707A1 (en) 2007-09-20
CN101976327A (zh) 2011-02-16
KR20070004098A (ko) 2007-01-05
CN101124587B (zh) 2012-03-21
KR101098322B1 (ko) 2011-12-26
EP2112618A3 (en) 2011-08-24
WO2005106768A2 (en) 2005-11-10
KR20110026526A (ko) 2011-03-15
US20070158426A1 (en) 2007-07-12
EP1741046A4 (en) 2009-05-27
EP1741046B1 (en) 2015-05-20
US20050230480A1 (en) 2005-10-20
US7832644B2 (en) 2010-11-16
KR101107033B1 (ko) 2012-01-25
EP2112618A2 (en) 2009-10-28
JP2007534062A (ja) 2007-11-22
CN101124587A (zh) 2008-02-13
EP1741046A2 (en) 2007-01-10
CN101645132B (zh) 2013-04-24

Similar Documents

Publication Publication Date Title
US7743993B2 (en) Barcode scanner with linear automatic gain control (AGC), modulation transfer function detector, and selectable noise filter
KR20090123953A (ko) Ｒｆ 통신을 위한 선형 트랜스컨덕터
TWI260598B (en) Optical disk device
JP2008507760A (ja) 高い強度の周辺光において性能を改善された電気光学リーダ
EP1217571A1 (en) Method and device for focusing an electrical signal representative of an optical code
US6654322B2 (en) Focus servo actuating circuit and optical disk device incorporating same
JP2748721B2 (ja) バーコード読取装置
US20060087378A1 (en) Preamplifier circuit having a variable feedback resistance
Shivananth et al. Analyzing Signal Distortion Using Enhanced Novel Low Noise Amplifier In Comparison With Audio Amplifier
JP3863952B2 (ja) 外乱光補正機能を有するシンボル情報読み取り装置
JP4329032B2 (ja) 信号間振幅差調整回路およびトラッキング誤差検出器
WO2002033860A1 (fr) Circuit de detection d'intensite de champ electrique et amplificateur limiteur
GB2291241A (en) Bar-code reader
KR920007310B1 (ko) 바코드용 레이저 스캐너의 광신호 자동 이득 제어장치
US20160253535A1 (en) Controller for optical information reader
JP2004021567A (ja) 光学的情報読取装置用モジュール
JPH01101713A (ja) 自動利得制御増幅回路
JP3506805B2 (ja) 光学的情報読取装置
JP2836297B2 (ja) 光学的情報読取装置
KR20050071584A (ko) 증폭단의 출력신호를 제한하는 장치
CN115913417A (zh) 一种提升射频功率检波器检波范围和精度的装置和方法
JP2002372455A (ja) 赤外線検出装置
JPH01260670A (ja) 自動利得調整回路

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20141015

Termination date: 20160404

CF01 Termination of patent right due to non-payment of annual fee