IL98002A - A light emitting diode scanner - Google Patents

A light emitting diode scanner

Info

Publication number
IL98002A
IL98002A IL9800291A IL9800291A IL98002A IL 98002 A IL98002 A IL 98002A IL 9800291 A IL9800291 A IL 9800291A IL 9800291 A IL9800291 A IL 9800291A IL 98002 A IL98002 A IL 98002A
Authority
IL
Israel
Prior art keywords
scan
symbol
focusing
light
spot
Prior art date
Application number
IL9800291A
Other languages
English (en)
Hebrew (he)
Other versions
IL98002A0 (en
Original Assignee
Symbol Technologies 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 Symbol Technologies Inc filed Critical Symbol Technologies Inc
Publication of IL98002A0 publication Critical patent/IL98002A0/xx
Publication of IL98002A publication Critical patent/IL98002A/en

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
    • G06K7/10881—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
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K2207/00—Other aspects
    • G06K2207/1013—Multi-focal

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Electromagnetism (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)
  • Facsimile Scanning Arrangements (AREA)
  • Road Signs Or Road Markings (AREA)
  • Vehicle Body Suspensions (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Image Input (AREA)
  • Input From Keyboards Or The Like (AREA)
  • Eye Examination Apparatus (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Golf Clubs (AREA)
  • Facsimile Heads (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)
  • Exposure Control For Cameras (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)
  • Cash Registers Or Receiving Machines (AREA)
  • Credit Cards Or The Like (AREA)
IL9800291A 1990-08-03 1991-04-29 A light emitting diode scanner IL98002A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/562,130 US5151580A (en) 1990-08-03 1990-08-03 Light emitting diode scanner

Publications (2)

Publication Number Publication Date
IL98002A0 IL98002A0 (en) 1992-06-21
IL98002A true IL98002A (en) 1994-10-21

Family

ID=24244929

Family Applications (1)

Application Number Title Priority Date Filing Date
IL9800291A IL98002A (en) 1990-08-03 1991-04-29 A light emitting diode scanner

Country Status (13)

Country Link
US (1) US5151580A (pt)
EP (1) EP0469305B1 (pt)
JP (1) JP3081288B2 (pt)
KR (1) KR100209781B1 (pt)
AT (1) ATE178419T1 (pt)
AU (1) AU637214B2 (pt)
BR (1) BR9102294A (pt)
CA (1) CA2039225C (pt)
DE (2) DE69131062T2 (pt)
FR (1) FR2665555B1 (pt)
GB (1) GB2246653B (pt)
IL (1) IL98002A (pt)
ZA (1) ZA912756B (pt)

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5478997A (en) * 1988-10-21 1995-12-26 Symbol Technologies, Inc. Symbol scanning system and method having adaptive pattern generation
US5612531A (en) * 1993-03-08 1997-03-18 Symbol Technologies, Inc. Bar code reader with multiple sensitivity modes using variable thresholding comparisons
US5408081A (en) * 1989-06-16 1995-04-18 Symbol Technologies, Inc. Digital circuit for a laser scanner using a first derivative signal and a comparison signal
US5367151A (en) * 1989-10-30 1994-11-22 Symbol Technologies, Inc. Slim scan module with interchangeable scan element
US5268564A (en) * 1990-08-03 1993-12-07 Symbol Technologies, Inc. Bar code scanner actuated by detection of scanner motion
US5392150A (en) * 1991-05-15 1995-02-21 Nippondenso Co., Ltd. Optical information reading device
US5331176A (en) * 1992-04-10 1994-07-19 Veritec Inc. Hand held two dimensional symbol reader with a symbol illumination window
US5536930A (en) * 1992-06-03 1996-07-16 Symbol Technologies, Inc. Apparatus and method for sensing positional orientations of a portable terminal
US5272353A (en) * 1992-06-19 1993-12-21 Symbol Technologies, Inc. Retro-reflective scanner with return path free of collection optics
DE9215334U1 (de) * 1992-11-11 1993-01-21 Gütermann & Co. AG, Zürich Garnspule mit Strichcode
DE4315105C1 (de) * 1993-05-06 1994-09-01 Sick Optik Elektronik Erwin Verfahren und Anordnung zum Winkeljustieren einer Linienabtastvorrichtung
US5475208A (en) * 1994-01-27 1995-12-12 Symbol Technologies, Inc. Barcode scanner having a dead zone reducing system and a multifocal length collector
JP3556274B2 (ja) * 1994-07-13 2004-08-18 富士通株式会社 二値化回路及びそれを用いたバーコードリーダ
US5534684A (en) * 1994-08-30 1996-07-09 Norand Corporation Portable optical reader with motion sensing system and method
US5578818A (en) * 1995-05-10 1996-11-26 Molecular Dynamics LED point scanning system
JP3070484B2 (ja) * 1995-07-26 2000-07-31 株式会社デンソー 光学情報読取装置および光学情報読取方法
NL1001637C2 (nl) * 1995-11-13 1997-05-21 Function Control Research B V Inrichting voor het elektrisch detecteren van intensiteitsverschillen alsmede een werkwijze voor het tellen van een aantal voorwerpen gebruik makende van de inrichting.
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
ATE261599T1 (de) * 1996-12-30 2004-03-15 Datalogic Spa Verfahren und vorrichtung zum messen und regulieren einer zeitkonstanten einer elektronischen schaltung, die teil eines optischen kodelesers ist
DE19710724C2 (de) * 1997-03-14 2002-09-26 Sick Ag Optoelektronischer Sensor
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
US20100051696A1 (en) * 2008-08-27 2010-03-04 Symbol Technologies, Inc. Illumination system for a bar code reader
US20110222301A1 (en) * 2010-03-09 2011-09-15 Digital Imaging Systems GmbH and Luger Research e. U. Dynamic lighting system
DE102011100279A1 (de) 2011-04-29 2012-10-31 Digital Imaging Systems Gmbh Dynamisches Beleuchtungssystem
CN102881120B (zh) * 2012-10-09 2014-07-23 宁波宇宏电气有限公司 一种具有智能报警阈值的燃气泄漏报警控制方法

Family Cites Families (46)

* 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
US3466451A (en) * 1966-05-31 1969-09-09 Gen Electric Photoelectric device for sensing indicia on a moving medium
GB1375963A (en) * 1970-12-17 1974-12-04 Plessey Co Ltd Data handling systems
CH537056A (de) * 1971-03-22 1973-05-15 Zellweger Uster Ag Lesevorrichtung für optisch erkennbare Zeichen
CH537057A (de) * 1971-03-22 1973-05-15 Zellweger Uster Ag Lesevorrichtung für optisch erkennbare Zeichen
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
US4182956A (en) * 1974-04-01 1980-01-08 DeVar Inc. Optical light pen
US4019026A (en) * 1975-09-23 1977-04-19 Shinko Electric Co., Ltd. Laser beam label reader head
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
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
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
JPS5566060A (en) * 1978-11-10 1980-05-19 Kokusai Electric Co Ltd Bar-code detection circuit
CH638067A5 (de) * 1978-12-20 1983-08-31 Ibm Anordnung zur trennung eines optischen signals von umgebungslicht.
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
US4387297B1 (en) * 1980-02-29 1995-09-12 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
JPS5793907U (pt) * 1980-11-26 1982-06-09
US4570057A (en) * 1981-12-28 1986-02-11 Norand Corporation Instant portable bar code reader
US4894523A (en) * 1981-12-28 1990-01-16 Norand Corporation Instant portable bar code reader
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
AT376795B (de) * 1982-06-08 1984-12-27 Elkon Elektron Geraeten Elektronisches kleingeraet, insbesondere elektronisches fieberthermometer
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
US4897532A (en) * 1985-02-28 1990-01-30 Symbol Technologies, Inc. Portable laser diode scanning head
EP0367298B1 (en) * 1985-02-28 1992-07-22 Symbol Technologies, Inc. Portable laser diode scanning head
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
CA1262378A (en) * 1986-01-22 1989-10-17 Harry Albinger, Jr. Automatic switching apparatus for an electrical appliance
US4672215A (en) * 1986-02-27 1987-06-09 Spectra-Physics, Inc. Hand held laser bar code reader with safety shutoff responsive to housing motion detector
JPS62226386A (ja) * 1986-03-28 1987-10-05 Honda Motor Co Ltd バ−コ−ド読取回路
US4845349A (en) * 1986-09-30 1989-07-04 Spectra-Physics, Inc. Bar code scanner laser emission reduction
US4795224A (en) * 1986-10-06 1989-01-03 Katsuchika Goto Optical scanning pattern generator
JPS63127386A (ja) * 1986-11-18 1988-05-31 Tokyo Electric Co Ltd 画像情報読取装置の量子化回路
US4916318A (en) * 1986-12-16 1990-04-10 Asahi Kogaku Kogyo K.K. Scan type optical reader with changing beam waist position
US4816659A (en) * 1987-10-13 1989-03-28 Control Module Inc. Bar code reader head
US4933538A (en) * 1988-10-21 1990-06-12 Symbol Technologies, Inc. Scanning system with adjustable light output and/or scanning angle
JPH02159688A (ja) * 1988-12-13 1990-06-19 Sony Corp 光学情報検出装置
CA1329263C (en) * 1989-03-01 1994-05-03 Mark Krichever Bar code scanner
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
US5272323A (en) * 1989-11-22 1993-12-21 Symbol Technologies, Inc. Digitizer for barcode scanner

Also Published As

Publication number Publication date
US5151580A (en) 1992-09-29
CA2039225A1 (en) 1992-02-04
KR920005018A (ko) 1992-03-28
ATE178419T1 (de) 1999-04-15
AU637214B2 (en) 1993-05-20
GB2246653A (en) 1992-02-05
JPH04260985A (ja) 1992-09-16
EP0469305A3 (en) 1992-09-02
EP0469305A2 (en) 1992-02-05
EP0469305B1 (en) 1999-03-31
BR9102294A (pt) 1992-04-28
KR100209781B1 (ko) 1999-07-15
JP3081288B2 (ja) 2000-08-28
DE4125899A1 (de) 1992-02-06
DE69131062D1 (de) 1999-05-06
GB9112224D0 (en) 1991-07-24
DE69131062T2 (de) 1999-10-28
AU7511791A (en) 1992-02-06
FR2665555B1 (fr) 1995-10-27
IL98002A0 (en) 1992-06-21
CA2039225C (en) 2002-01-01
DE4125899C2 (de) 2000-03-02
GB2246653B (en) 1995-02-15
FR2665555A1 (fr) 1992-02-07
ZA912756B (en) 1992-04-29

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