DE69333135D1 - Leservorrichtung ohne Auslöser - Google Patents

Leservorrichtung ohne Auslöser

Info

Publication number
DE69333135D1
DE69333135D1 DE69333135T DE69333135T DE69333135D1 DE 69333135 D1 DE69333135 D1 DE 69333135D1 DE 69333135 T DE69333135 T DE 69333135T DE 69333135 T DE69333135 T DE 69333135T DE 69333135 D1 DE69333135 D1 DE 69333135D1
Authority
DE
Germany
Prior art keywords
trigger
reader device
reader
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
DE69333135T
Other languages
English (en)
Other versions
DE69333135T2 (de
Inventor
Boris Metlitsky
Paul Dvorkis
Edward Barkan
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
Application granted granted Critical
Publication of DE69333135D1 publication Critical patent/DE69333135D1/de
Publication of DE69333135T2 publication Critical patent/DE69333135T2/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
    • G06K7/10861—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 sensing of data fields affixed to objects or articles, e.g. coded labels
    • G06K7/10871—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 sensing of data fields affixed to objects or articles, e.g. coded labels randomly oriented data-fields, code-marks therefore, e.g. concentric circles-code
    • 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
    • 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
    • G06K7/10554—Moving beam scanning
    • G06K7/10564—Light sources
    • 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
    • G06K7/10554—Moving beam scanning
    • G06K7/10564—Light sources
    • G06K7/10584—Source control
    • 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
    • G06K7/10554—Moving beam scanning
    • G06K7/10594—Beam path
    • G06K7/10603—Basic scanning using moving elements
    • G06K7/10633—Basic scanning using moving elements by oscillation
    • 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
    • G06K7/10554—Moving beam scanning
    • G06K7/10594—Beam path
    • G06K7/10603—Basic scanning using moving elements
    • G06K7/10633—Basic scanning using moving elements by oscillation
    • G06K7/10643—Activating means
    • 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
    • G06K7/10554—Moving beam scanning
    • G06K7/10594—Beam path
    • G06K7/10603—Basic scanning using moving elements
    • G06K7/10633—Basic scanning using moving elements by oscillation
    • G06K7/10643—Activating means
    • G06K7/10653—Activating means using flexible or piezoelectric means
    • 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
    • G06K7/10554—Moving beam scanning
    • G06K7/10594—Beam path
    • G06K7/10603—Basic scanning using moving elements
    • G06K7/10673—Parallel lines
    • 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
    • G06K7/10554—Moving beam scanning
    • G06K7/10594—Beam path
    • G06K7/10683—Arrangement of fixed elements
    • G06K7/10693—Arrangement of fixed elements for omnidirectional scanning
    • 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
    • G06K7/10792—Special measures in relation to the object to be scanned
    • G06K7/10801—Multidistance reading
    • G06K7/10811—Focalisation
    • 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
    • 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
    • G06K7/10891—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 the scanner to be worn on a finger or on a wrist
    • 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
    • G06K7/109—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 adaptations to make the hand-held scanner useable as a fixed scanner
    • 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
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K2207/00—Other aspects
    • G06K2207/1011—Aiming
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K2207/00—Other aspects
    • G06K2207/1016—Motor control or optical moving unit control
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K2207/00—Other aspects
    • G06K2207/1018—Source control
DE69333135T 1993-03-08 1993-11-25 Leservorrichtung ohne Auslöser Expired - Lifetime DE69333135T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US28107 1993-03-08
US08/028,107 US5408081A (en) 1989-06-16 1993-03-08 Digital circuit for a laser scanner using a first derivative signal and a comparison signal

Publications (2)

Publication Number Publication Date
DE69333135D1 true DE69333135D1 (de) 2003-09-11
DE69333135T2 DE69333135T2 (de) 2004-06-09

Family

ID=21841616

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69333135T Expired - Lifetime DE69333135T2 (de) 1993-03-08 1993-11-25 Leservorrichtung ohne Auslöser

Country Status (6)

Country Link
US (4) US5408081A (de)
EP (1) EP0615207B1 (de)
JP (2) JP3602863B2 (de)
KR (1) KR940022329A (de)
CN (1) CN1041247C (de)
DE (1) DE69333135T2 (de)

Families Citing this family (61)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5783813A (en) * 1989-06-16 1998-07-21 Symbol Technologies, Inc. Limited working range scanner having focused light beam waist situated within scanner housing
US6742709B2 (en) 1990-09-11 2004-06-01 Metrologic Instruments, Inc. Bar code symbol reading system employing electronically-controlled raster-type laser scanner for reading bar code symbols during hands-on and hands-free modes of operation
US6227450B1 (en) * 1990-09-11 2001-05-08 Metrologic Instruments, Inc. Electronically-controlled mechanically-damped off-resonant light beam scanning mechanism and code symbol readers employing the same
US6047894A (en) * 1993-05-07 2000-04-11 Spectra-Physics Scanning Systems, Inc. Signal conditioning for variable focus optical reader
US5463211A (en) * 1993-05-07 1995-10-31 Spectra-Physics Scanning Systems, Inc. Method and apparatus for detecting transitions in a time sampled input signal
US5814803A (en) * 1994-12-23 1998-09-29 Spectra-Physics Scanning Systems, Inc. Image reader with multi-focus lens
US5770847A (en) * 1994-12-23 1998-06-23 Spectra-Physics Scanning Systems, Inc. Bar code reader with multi-focus lens
US6811086B1 (en) 1995-07-20 2004-11-02 Fujitsu Limited Stand for pivotably mounting an optical reading device
US5949054A (en) * 1995-10-23 1999-09-07 Welch Allyn, Inc. Bar code reader for reading high to low contrast bar code symbols
US6343741B1 (en) 1995-10-26 2002-02-05 Psc Scanning, Inc. Method and apparatus for detecting transitions in an input signal
US5719385A (en) * 1995-12-08 1998-02-17 Ncr Corporation Optical scanner having multi-line and single-line scanning modes
US6354505B1 (en) 1995-12-18 2002-03-12 Metrologic Instruments, Inc. Scan data signal processor employing pass-band filter structures having frequency response characteristics dynamically switched into operation by control signals indicative of the focal zone of the laser beam during bar code symbol scanning
US6572018B1 (en) 1995-12-18 2003-06-03 Metrologic Instruments, Inc. Method of and apparatus for processing analog scan data signals derived by scanning bar code symbols using a laser beam, wherein a real-time bar code element detector is used to control the detection of zero-crossings occurring in the second derivative of said analog scan data signals
US6422467B2 (en) 1995-12-18 2002-07-23 Metrologic Instruments, Inc. Reading system a variable pass-band
US6494377B1 (en) 1995-12-18 2002-12-17 Metrologic Instruments, Inc. Method of and apparatus for processing analog scan data signals derived while scanning a bar code symbol using a laser beam, wherein the detected beam spot speed of said laser beam is used to dynamically switch into operation optimal pass-band filtering circuits
US6073849A (en) * 1996-11-01 2000-06-13 Psc Scanning, Inc. Electronic edge detection system using a second derivative signal processor
US6012639A (en) * 1996-11-01 2000-01-11 Psc Scanning Inc. Edge detection method and apparatus for shot noise limited signals
US5914478A (en) * 1997-01-24 1999-06-22 Symbol Technologies, Inc. Scanning system and method of operation with intelligent automatic gain control
US6764012B2 (en) * 1997-02-10 2004-07-20 Symbol Technologies, Inc. Signaling arrangement for and method of signaling in a wireless local area network
US5864129A (en) * 1997-05-05 1999-01-26 Psc Inc. Bar code digitizer including a voltage comparator
US7124950B2 (en) 1997-09-16 2006-10-24 Metrologic Instruments, Inc. Bar code symbol reading system employing electronically-controlled raster-type laser scanner for reading bar code symbols during on hands-on and hands-free modes of operation
ATE203606T1 (de) * 1997-12-05 2001-08-15 Datalogic Spa Verfahren zur kompensation der flankenposition durch abtastung eines strichcodes generierten signals
NL1008260C2 (nl) * 1998-02-10 1999-08-11 Scantech Bv Optische inrichting voor het uitlezen en decoderen van een barcode.
NL1009156C2 (nl) 1998-05-13 1999-11-16 Scantech Bv Optische inrichting voor het uitlezen en decoderen van volgens een barcode aangebrachte en aan elkaar grenzende stroken van verschillende reflectiviteit.
US6087941A (en) * 1998-09-01 2000-07-11 Ferraz; Mark Warning device for alerting a person falling asleep
WO2000016240A1 (en) * 1998-09-14 2000-03-23 Psc Scanning, Inc. Fast edge detection system tolerant of high degree of intersymbol interference
EP1715439A3 (de) 1998-11-02 2007-10-10 Datalogic S.P.A. Vorrichtung für die Erfassung und automatische Verarbeitung von Daten aus optischen Codes
US6830190B2 (en) * 1999-02-02 2004-12-14 Metrologic Instruments, Inc. Multipath scan data signal processor having multiple signal processing paths with different operational characteristics to enable processing of signals having increased dynamic range
JP2000306036A (ja) * 1999-04-19 2000-11-02 Keyence Corp 光学読み取り装置、及び光学読み取り方法、並びに光学読み取りシステム
US6382511B1 (en) 2000-04-26 2002-05-07 Ncr Corporation Methods and apparatus for digitizing and processing of analog barcode signals
US6502751B1 (en) 2000-04-26 2003-01-07 Ncr Corporation Methods and apparatus for dual thresholding in processing of barcode signals
DE60030985T2 (de) * 2000-11-14 2007-06-14 Datalogic S.P.A., Lippo Di Calderara Di Reno Verfahren zur Lokalisierung der Übergänge zwischen Teilen eines Streifenkodes
US6508405B1 (en) * 2000-11-14 2003-01-21 Ncr Corporation Methods and apparatus for area weighted means processing of barcode signals
US8682077B1 (en) 2000-11-28 2014-03-25 Hand Held Products, Inc. Method for omnidirectional processing of 2D images including recognizable characters
US6761316B2 (en) 2001-03-27 2004-07-13 Symbol Technologies, Inc. Compact auto ID reader and radio frequency transceiver data collection module
US6766954B2 (en) 2001-06-15 2004-07-27 Symbol Technologies, Inc. Omnidirectional linear sensor-based code reading engines
JP2003308476A (ja) * 2002-04-12 2003-10-31 Toshiba Corp バーコード読み取り装置
US7086596B2 (en) 2003-01-09 2006-08-08 Hand Held Products, Inc. Decoder board for an optical reader utilizing a plurality of imaging formats
JP4113387B2 (ja) * 2002-07-24 2008-07-09 シャープ株式会社 携帯端末装置並びに情報読取プログラム及びそのプログラムを記録した記録媒体
US20050150959A1 (en) * 2004-01-09 2005-07-14 John Izzo Optical reader
US7093763B1 (en) 2005-02-25 2006-08-22 Symbol Technologies, Inc. Laser scanner having analog digitizer with increased noise immunity
US7556203B2 (en) 2005-06-27 2009-07-07 Hand Held Products, Inc. Method and system for linking a wireless hand held optical reader with a base unit or other wireless device
JP5258751B2 (ja) * 2006-04-27 2013-08-07 ファティーグ テクノロジー インコーポレイテッド アラインメント装置およびその使用方法
US7686216B2 (en) * 2006-06-13 2010-03-30 Hand Held Products, Inc. Method and apparatus for uniquely associating a bar code reading terminal to a cash register in a retail store network
US7428999B2 (en) * 2006-09-29 2008-09-30 Symbol Technologies, Inc. MEMS-based electro-optical reader and method with extended working range
US7679804B2 (en) * 2007-04-26 2010-03-16 Microvision, Inc. Non-resonant drive for adaptive trajectory of a scanner system having a MEMS device
US7717341B2 (en) 2007-04-26 2010-05-18 Microvision, Inc. Bar code scanner having an adaptive threshold using a first derivative amplitude
US7550713B2 (en) * 2007-04-26 2009-06-23 Microvision, Inc. System for determining an operational state of a MEMS based laser scanner
US7616366B2 (en) * 2007-04-26 2009-11-10 Microvision, Inc. MEMS device having a drive coil with curved segments
US7619802B2 (en) 2007-04-26 2009-11-17 Microvision, Inc. Suspension for maintaining mirror flatness of a MEMS device in a scanner system or the like
US20080266629A1 (en) * 2007-04-26 2008-10-30 Brown Dean R MEMS device of a scanner system having magnetic components disposed opposite to reflectance path
US7857223B2 (en) * 2007-04-26 2010-12-28 Microvision, Inc. Scanning module for a scanner system having a MEMS device or the like
CN101862912A (zh) * 2010-03-11 2010-10-20 广东海洋大学 一种手持式激光打孔的方法
CN101862911A (zh) * 2010-03-11 2010-10-20 广东海洋大学 一种手持式激光切割的方法
CN101862902A (zh) * 2010-03-11 2010-10-20 广东海洋大学 一种手持式激光焊接的方法及装置
CN103049724B (zh) * 2011-10-11 2016-01-27 阿丹电子企业股份有限公司 条形码扫描器装置及其模式切换方法
CN104657692A (zh) * 2015-02-25 2015-05-27 成都博智维讯信息技术有限公司 一种全方位大行程扫描装置
CN105095820B (zh) * 2015-08-11 2017-08-29 福建英吉微电子设计有限公司 自动扳机扣动机构
US11797793B2 (en) 2019-01-11 2023-10-24 Zebra Technologies Corporation Industrial digital barcode scanner
CA3148625A1 (en) 2019-09-13 2021-03-18 Luke W. Clauson Metal detection device and methods of operation thereof
WO2021050174A1 (en) * 2019-09-13 2021-03-18 Melzi Corporation Metal detection device and methods of operation thereof

Family Cites Families (52)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3360659A (en) * 1964-04-23 1967-12-26 Outlook Engineering Corp Compensated optical scanning system
US3699321A (en) * 1971-04-01 1972-10-17 North American Rockwell Automatic adaptive equalizer implementation amenable to mos
US3685723A (en) * 1971-05-21 1972-08-22 Robert M Berler Photoelectric manual reader for printed coded tags
US3891831A (en) * 1973-12-05 1975-06-24 Data General Corp Code recognition apparatus
US4182956A (en) * 1974-04-01 1980-01-08 DeVar Inc. Optical light pen
US3892949A (en) * 1974-04-22 1975-07-01 Rca Corp Circuit for determining the time of transitions in an alternating signal
US4000397A (en) * 1975-03-21 1976-12-28 Spectra-Physics, Inc. Signal processor method and apparatus
US4109316A (en) * 1976-01-21 1978-08-22 Xerox Corporation Method and apparatus for inverting the polarity of an input image formed on a surface of an image recording device
US4115703A (en) * 1976-11-08 1978-09-19 Monarch Marking Systems, Inc. Hand held optical reading device
US4118675A (en) * 1977-03-31 1978-10-03 The United States Of America As Represented By The Secretary Of The Navy Laser tuning with an acousto-optic lens
JPS53128230A (en) * 1977-04-14 1978-11-09 Shinko Electric Co Ltd Method of reading bar code information in label reader
US4113343A (en) * 1977-05-18 1978-09-12 International Business Machines Corporation Holographic opaque document scanner
JPS5424543A (en) * 1977-07-26 1979-02-23 Nippon Denso Co Ltd Bar code reader
US4160156A (en) * 1978-05-04 1979-07-03 Msi Data Corporation Method and apparatus for reading bar coded data wherein the light source is periodically energized
US4305646A (en) * 1979-11-19 1981-12-15 Eltra Corporation Optical system for electro-optical scanner
US4277127A (en) * 1979-12-03 1981-07-07 The United States Of America As Represented By The Secretary Of The Army Dopler extended depth of field imaging system with coherent object illumination
US4356389A (en) * 1980-06-27 1982-10-26 Motorola Inc. Bar code scanner interface
JPS5793907U (de) * 1980-11-26 1982-06-09
US4360998A (en) * 1981-03-27 1982-11-30 Sperry Corporation Absolute grain loss monitor
JPS5876973A (ja) * 1981-10-30 1983-05-10 Nippon Denso Co Ltd 光学的情報読取装置
US4570057A (en) * 1981-12-28 1986-02-11 Norand Corporation Instant portable bar code reader
DE3315437A1 (de) * 1982-04-30 1983-11-10 Ricoh Co., Ltd., Tokyo Elektrophotographisches aufzeichnungsmaterial
JPS5979684A (ja) * 1982-10-28 1984-05-08 Casio Comput Co Ltd 信号変換回路
US4560862A (en) * 1983-04-26 1985-12-24 Skan-A-Matic Corp. System for optical scanning over a large depth of field
US4578571A (en) * 1983-11-14 1986-03-25 Numa Corporation Portable bar code scanning device and method
JPS6159573A (ja) * 1984-08-30 1986-03-27 Audio Technica Corp バ−コ−ドリ−ダにおけるバ−信号の雑音除去回路
DE3686171T2 (de) * 1985-02-28 1993-03-18 Symbol Technologies Inc Tragbarer abtastkopf mit laserdiode.
JPS6260074A (ja) * 1985-09-10 1987-03-16 Tokyo Electric Co Ltd バ−コ−ドスキヤナ−
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
JP2571683B2 (ja) * 1986-06-12 1997-01-16 アルプス電気株式会社 符号読取装置の信号増幅回路
US4795224A (en) * 1986-10-06 1989-01-03 Katsuchika Goto Optical scanning pattern generator
US4916318A (en) * 1986-12-16 1990-04-10 Asahi Kogaku Kogyo K.K. Scan type optical reader with changing beam waist position
JPS63165979A (ja) * 1986-12-26 1988-07-09 Tokyo Electric Co Ltd バ−コ−ド信号２値化回路
US4766297A (en) * 1987-01-08 1988-08-23 Recognition Equipment Incorporated Dual mode stationary and portable scanning system
JPS63311489A (ja) * 1987-06-13 1988-12-20 Tohoku Ricoh Co Ltd バ−コ−ド読取装置
US4749879A (en) * 1987-06-18 1988-06-07 Spectra-Physics, Inc. Signal transition detection method and system
JPH01304589A (ja) * 1988-06-01 1989-12-08 Ricoh Co Ltd バーコードスキヤナ
US5151580A (en) * 1990-08-03 1992-09-29 Symbol Technologies, Inc. Light emitting diode scanner
US5015833A (en) * 1988-10-31 1991-05-14 Symbol Technologies, Inc. Scan board module for laser scanners
JPH07101429B2 (ja) * 1989-05-30 1995-11-01 富士通株式会社 バーコードリーダーのアナログ信号処理方式
US5124539A (en) * 1989-06-16 1992-06-23 Symbol Technologies, Inc. Scan pattern generators for bar code symbol readers
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
JP2808735B2 (ja) * 1989-10-25 1998-10-08 富士通株式会社 分離型読取装置
US5140146A (en) * 1989-11-20 1992-08-18 Symbol Technologies, Inc. Bar code symbol reader with modulation enhancement
US5272323A (en) * 1989-11-22 1993-12-21 Symbol Technologies, Inc. Digitizer for barcode scanner
US5210397A (en) * 1990-05-03 1993-05-11 Psc, Inc. Differentiating and integrating circuit for translating bar code signals into corresponding pulses
US5132523A (en) * 1990-12-10 1992-07-21 Ncr Corporation Dual mode optical scanning system
US5103080A (en) * 1990-12-10 1992-04-07 Symbol Technologies, Inc. Digitizer signal processing circuit for a bar code
JPH0775356B2 (ja) * 1991-06-05 1995-08-09 株式会社東芝 光受信器
US5214270A (en) * 1991-11-22 1993-05-25 Spectra-Physics Modular handheld or fixed scanner
US5294783A (en) * 1992-01-10 1994-03-15 Welch Allyn, Inc. Analog reconstruction circuit and bar code reading apparatus employing same
WO1993017396A1 (en) * 1992-02-21 1993-09-02 Spectra-Physics Scanning Systems, Inc. Bar code scanner

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KR940022329A (ko) 1994-10-20
DE69333135T2 (de) 2004-06-09
US5408081A (en) 1995-04-18
EP0615207B1 (de) 2003-08-06
CN1109615A (zh) 1995-10-04
EP0615207A2 (de) 1994-09-14
JPH06274670A (ja) 1994-09-30
JP2004348758A (ja) 2004-12-09
EP0615207A3 (de) 1998-07-01
US5545888A (en) 1996-08-13
CN1041247C (zh) 1998-12-16
JP3790535B2 (ja) 2006-06-28
JP3602863B2 (ja) 2004-12-15
US5436440A (en) 1995-07-25
US5581072A (en) 1996-12-03

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