DE69431280T2 - Verfahren und Vorrichtung zum Lesen von zweidimensionalen Strickkoden mit einem, verbreiterten Laserstrahl - Google Patents

Verfahren und Vorrichtung zum Lesen von zweidimensionalen Strickkoden mit einem, verbreiterten Laserstrahl

Info

Publication number
DE69431280T2
DE69431280T2 DE69431280T DE69431280T DE69431280T2 DE 69431280 T2 DE69431280 T2 DE 69431280T2 DE 69431280 T DE69431280 T DE 69431280T DE 69431280 T DE69431280 T DE 69431280T DE 69431280 T2 DE69431280 T2 DE 69431280T2
Authority
DE
Germany
Prior art keywords
reading
laser beam
dimensional knitting
broadened laser
knitting codes
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
DE69431280T
Other languages
English (en)
Other versions
DE69431280D1 (de
Inventor
Jerome Swartz
Yajun Li
Paul Dvorkis
Glenn Spitz
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 DE69431280D1 publication Critical patent/DE69431280D1/de
Application granted granted Critical
Publication of DE69431280T2 publication Critical patent/DE69431280T2/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
    • G06K7/14—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
    • 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
    • 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
    • G06K7/10712—Fixed beam scanning
    • G06K7/10722—Photodetector array or CCD 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
    • G06K7/14—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
    • G06K7/1408—Methods for optical code recognition the method being specifically adapted for the type of code
    • G06K7/1417—2D bar codes
    • 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
    • G06K2207/1017—Programmable
    • 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
DE69431280T 1993-11-17 1994-11-10 Verfahren und Vorrichtung zum Lesen von zweidimensionalen Strickkoden mit einem, verbreiterten Laserstrahl Expired - Fee Related DE69431280T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US15363793A 1993-11-17 1993-11-17
US08/268,913 US5621203A (en) 1992-09-25 1994-06-30 Method and apparatus for reading two-dimensional bar code symbols with an elongated laser line

Publications (2)

Publication Number Publication Date
DE69431280D1 DE69431280D1 (de) 2002-10-10
DE69431280T2 true DE69431280T2 (de) 2003-05-08

Family

ID=26850724

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69431280T Expired - Fee Related DE69431280T2 (de) 1993-11-17 1994-11-10 Verfahren und Vorrichtung zum Lesen von zweidimensionalen Strickkoden mit einem, verbreiterten Laserstrahl

Country Status (5)

Country Link
US (1) US5621203A (de)
EP (1) EP0653720B1 (de)
JP (1) JPH07200718A (de)
CA (1) CA2134699A1 (de)
DE (1) DE69431280T2 (de)

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DE69431280D1 (de) 2002-10-10
US5621203A (en) 1997-04-15
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EP0653720A2 (de) 1995-05-17
EP0653720B1 (de) 2002-09-04
CA2134699A1 (en) 1995-05-18

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