DE69938521D1 - Strichkodeleser mit einer Übergangsdetektorschaltung - Google Patents

Strichkodeleser mit einer Übergangsdetektorschaltung

Info

Publication number
DE69938521D1
DE69938521D1 DE69938521T DE69938521T DE69938521D1 DE 69938521 D1 DE69938521 D1 DE 69938521D1 DE 69938521 T DE69938521 T DE 69938521T DE 69938521 T DE69938521 T DE 69938521T DE 69938521 D1 DE69938521 D1 DE 69938521D1
Authority
DE
Germany
Prior art keywords
bar code
code reader
detector circuit
transition detector
transition
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
DE69938521T
Other languages
English (en)
Other versions
DE69938521T2 (de
Inventor
Gerrit Boersma
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.)
Datalogic SpA
Scantech ID Holding BV
Original Assignee
Datalogic SpA
Scantech ID Holding BV
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 Datalogic SpA, Scantech ID Holding BV filed Critical Datalogic SpA
Publication of DE69938521D1 publication Critical patent/DE69938521D1/de
Application granted granted Critical
Publication of DE69938521T2 publication Critical patent/DE69938521T2/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
    • G06K7/10544—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)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (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)
  • Analogue/Digital Conversion (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
DE69938521T 1998-05-13 1999-05-12 Strichkodeleser mit einer Übergangsdetektorschaltung Expired - Fee Related DE69938521T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL1009156A NL1009156C2 (nl) 1998-05-13 1998-05-13 Optische inrichting voor het uitlezen en decoderen van volgens een barcode aangebrachte en aan elkaar grenzende stroken van verschillende reflectiviteit.
NL1009156 1998-05-13

Publications (2)

Publication Number Publication Date
DE69938521D1 true DE69938521D1 (de) 2008-05-29
DE69938521T2 DE69938521T2 (de) 2009-06-10

Family

ID=19767128

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69938521T Expired - Fee Related DE69938521T2 (de) 1998-05-13 1999-05-12 Strichkodeleser mit einer Übergangsdetektorschaltung

Country Status (4)

Country Link
US (1) US6196462B1 (de)
EP (1) EP0957444B1 (de)
DE (1) DE69938521T2 (de)
NL (1) NL1009156C2 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7348100B2 (en) * 2003-10-21 2008-03-25 Valence Technology, Inc. Product and method for the processing of precursors for lithium phosphate active materials

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4000397A (en) * 1975-03-21 1976-12-28 Spectra-Physics, Inc. Signal processor method and apparatus
WO1988004456A1 (en) * 1986-12-12 1988-06-16 Metrologic Instruments, Inc. Bar code reader with digitizer and sequencer
US5446272A (en) 1989-06-16 1995-08-29 Symbol Technologies, Inc. System for digitizing a scanned signal indicating changes in signal intensity
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
US5059779A (en) 1989-06-16 1991-10-22 Symbol Technologies, Inc. Scan pattern generators for bar code symbol readers
US5124539A (en) 1989-06-16 1992-06-23 Symbol Technologies, Inc. Scan pattern generators for bar code symbol readers
US5200599A (en) 1989-06-16 1993-04-06 Symbol Technologies, Inc Symbol readers with changeable scan direction
US5612531A (en) 1993-03-08 1997-03-18 Symbol Technologies, Inc. Bar code reader with multiple sensitivity modes using variable thresholding comparisons
US5783813A (en) 1989-06-16 1998-07-21 Symbol Technologies, Inc. Limited working range scanner having focused light beam waist situated within scanner housing
US5504316A (en) 1990-05-08 1996-04-02 Symbol Technologies, Inc. Laser scanning system and scanning method for reading 1-D and 2-D barcode symbols
US5691528A (en) 1989-10-30 1997-11-25 Symbol Technologies Inc. Scanning system for either hand-held or stationary operation for reading 1-D or 2-D barcodes
JP2761265B2 (ja) * 1989-11-07 1998-06-04 富士通株式会社 バーコード読取方式
US5861615A (en) 1990-05-08 1999-01-19 Symbol Technologies, Inc. Palm scanner
US5705799A (en) 1990-05-08 1998-01-06 Symbol Technologies, Inc. Miniature optical scanning assembly for barcode readers

Also Published As

Publication number Publication date
EP0957444B1 (de) 2008-04-16
NL1009156C2 (nl) 1999-11-16
DE69938521T2 (de) 2009-06-10
EP0957444A1 (de) 1999-11-17
US6196462B1 (en) 2001-03-06

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee