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

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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
US6073849A (en) 1996-11-01 2000-06-13 Psc Scanning, Inc. Electronic edge detection system using a second derivative signal processor
EP0851378B1 (de) * 1996-12-30 2004-03-10 DATALOGIC S.p.A. 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
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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

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Also Published As

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

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