HK80996A - Mark reading device - Google Patents

Mark reading device

Info

Publication number
HK80996A
HK80996A HK80996A HK80996A HK80996A HK 80996 A HK80996 A HK 80996A HK 80996 A HK80996 A HK 80996A HK 80996 A HK80996 A HK 80996A HK 80996 A HK80996 A HK 80996A
Authority
HK
Hong Kong
Prior art keywords
scan
laser
laser beam
output energy
reading device
Prior art date
Application number
HK80996A
Other languages
German (de)
English (en)
Inventor
Takenaka Shinya
Original Assignee
Sumitomo Electric Industries, Ltd.
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 Sumitomo Electric Industries, Ltd. filed Critical Sumitomo Electric Industries, Ltd.
Publication of HK80996A publication Critical patent/HK80996A/en

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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 OR CALCULATING; COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K2207/00—Other aspects
    • G06K2207/1018—Source control

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • Artificial Intelligence (AREA)
  • Toxicology (AREA)
  • General Health & Medical Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Mechanical Optical Scanning Systems (AREA)
  • Character Input (AREA)
  • Image Input (AREA)
  • Length Measuring Devices By Optical Means (AREA)

Claims (3)

  1. Un dispositif (1) de lecture de marquage comprenant :    une unité (2) oscillante à laser émettant un faisceau laser ;    des moyens de déviation (4, 11), pour dévier ledit faisceau laser, cycliquement, à travers un angle d'exploration prédéterminé ; et    des moyens (7) de réception, pour lire ledit faisceau laser, lors de réflexion à partir d'une surface d'objet,    caractérisé en ce qu'il comprend de plus :    des moyens (12) de détection d'exploration, pour émettre un signal de terminaison d'exploration après chacune desdites explorations ; et    des moyens (20) de dispositif de commande, pour varier l'énergie de sortie dudit faisceau laser en réponse audit signal de terminaison d'exploration, ladite énergie de sortie du faisceau laser étant gardée constante durant la période de chaque exploration.
  2. Un dispositif (1) de lecture de marquage selon la revendication 1, dans lequel, lesdits moyens (20) de dispositif de commande sont configurés de façon à varier l'énergie de sortie dudit faisceau laser d'un degré incrémentiel, en réponse à chacun desdits signaux de terminaison d'exploration.
  3. Un dispositif (1) de lecture de marquage selon la revendication 1,    dans lequel, lesdits moyens (20) de dispositif de commande sont configurés de façon à varier l'énergie de sortie dudit faisceau laser d'un degré incrémentiel, en réponse à chacun desdits signaux de terminaison d'exploration, grâce à quoi ;    au moins un des degrés incrémentiels correspond à un niveau d'énergie inférieur au niveau d'énergie de sortie de laser établi usuellement ;    au moins un des degrés incrémentiels correspond à un niveau d'énergie égal au niveau d'énergie de sortie de laser établi usuellement ; et    au moins un des degrés incrémentiels correspond à un niveau d'énergie plus élevé que le niveau d'énergie de sortie de laser établi usuellement.
HK80996A 1989-01-10 1996-05-09 Mark reading device HK80996A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1004015A JPH07104900B2 (ja) 1989-01-10 1989-01-10 記号読取装置

Publications (1)

Publication Number Publication Date
HK80996A true HK80996A (en) 1996-05-17

Family

ID=11573146

Family Applications (1)

Application Number Title Priority Date Filing Date
HK80996A HK80996A (en) 1989-01-10 1996-05-09 Mark reading device

Country Status (6)

Country Link
US (1) US5148008A (fr)
EP (1) EP0378199B1 (fr)
JP (1) JPH07104900B2 (fr)
CA (1) CA2007405C (fr)
DE (1) DE69021090T2 (fr)
HK (1) HK80996A (fr)

Families Citing this family (29)

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US6247647B1 (en) * 1988-09-19 2001-06-19 Symbol Technologies, Inc. Scan pattern generator convertible between multiple and single line patterns
US5200597A (en) * 1991-02-07 1993-04-06 Psc, Inc. Digitally controlled system for scanning and reading bar codes
CA2056842A1 (fr) * 1991-02-07 1992-08-08 Jay M. Eastman Systeme de balayage et de lecture de symboles tels que des codes a barres adapte a un dispositif tenant dans la main et servant a lire automatiquement des symboles sur des objets places dans sa zone de detection
WO1993017396A1 (fr) * 1992-02-21 1993-09-02 Spectra-Physics Scanning Systems, Inc. Lecteur de codes a barres
JP3235249B2 (ja) * 1992-12-18 2001-12-04 株式会社デンソー 光学的情報読取り装置
GB2274937B (en) * 1993-01-23 1996-11-13 Nippon Sheet Glass Co Ltd Liquid crystal display
US5546217A (en) * 1993-11-05 1996-08-13 Decagon Devices, Inc. Laser scanning apparatus
JP3183767B2 (ja) * 1994-02-21 2001-07-09 富士通株式会社 レーザビーム走査装置
US6547144B1 (en) 1994-08-17 2003-04-15 Metrologic Instruments, Inc. Holographic laser scanning system for carrying out light collection operations with improved light collection efficiency
US6003772A (en) * 1994-08-17 1999-12-21 Metrologic Instruments, Inc. Holographic laser scanning system employing holographic scanning disc having dual-fringe contrast regions for optimized laser beam scanning and light collection operations
US6006993A (en) * 1994-08-17 1999-12-28 Metrologic Instruments, Inc. Holographic laser scanning system for carrying out laser beam scanning operations with improved scan angle multiplication efficiency and carrying out light collection operations with improved light collection efficiency
US6085978A (en) * 1994-08-17 2000-07-11 Metrologic Instruments, Inc. Holographic laser scanners of modular construction and method and apparatus for designing and manufacturing the same
US6158659A (en) 1994-08-17 2000-12-12 Metrologic Instruments, Inc. Holographic laser scanning system having multiple laser scanning stations for producing a 3-D scanning volume substantially free of spatially and temporally coincident scanning planes
US6199759B1 (en) * 1994-08-17 2001-03-13 Metrologic Instruments, Inc. Bar code symbol scanning system having a holographic laser scanning disc utilizing maximum light collection surface area thereof and having scanning facets with optimized light collection efficiency
US6073846A (en) * 1994-08-17 2000-06-13 Metrologic Instruments, Inc. Holographic laser scanning system and process and apparatus and method
US5612529A (en) * 1994-10-31 1997-03-18 Psc Inc. System for bar code reading and scanning with automatic gain control
US5581071A (en) * 1994-12-06 1996-12-03 International Business Machines Corporation Barcode scanner with adjustable light source intensity
US5834750A (en) * 1995-02-28 1998-11-10 Psc, Inc. Bar code scanning system for automatically maintaining constant the amplitude of light reflected from a bar code
US6848014B2 (en) 2001-01-23 2005-01-25 Symbol Technologies, Inc. Adapter unit for a personal digital assistant having automatically configurable application buttons
US7185820B1 (en) * 1997-06-26 2007-03-06 Symbol Technologies, Inc. Data acquisition apparatus
US7097105B2 (en) * 1998-12-03 2006-08-29 Metrologic Instruments, Inc. Automatically-activated hand-supportable omni-directional laser scanning bar code symbol reader having a user-selectable linear scanning menu-reading mode supported by a stroboscopically-pulsed omni-directional laser scanning pattern for improved bar code symbol navigation and alignment during menu-reading operations
US6857572B2 (en) * 1998-12-03 2005-02-22 Metrologic Instruments, Inc. Automatically-activated hand-supportable laser scanning bar code symbol reading system with omnidirectional and unidirectional scanning modes in addition to a data transmission activation switch
US6905071B2 (en) * 1998-12-03 2005-06-14 Metrologic Instruments, Inc. Automatically-activated hand-supportable multi-mode laser scanning bar code symbol reading system
US20050275625A1 (en) * 2004-06-15 2005-12-15 Koenig Douglas W Ergonomic computer input device having pistol-type grip
US20070047605A1 (en) * 2005-08-26 2007-03-01 Edward Barkan Laser power control arrangements in electro-optical readers
US7806585B2 (en) * 2007-06-22 2010-10-05 Decagon Devices, Inc. Apparatus, method, and system for measuring water activity and weight
US8579198B2 (en) * 2010-12-01 2013-11-12 Symbol Technologies, Inc. Enhanced laser barcode scanning
US8752766B2 (en) 2012-05-07 2014-06-17 Metrologic Instruments, Inc. Indicia reading system employing digital gain control
US8789759B2 (en) 2012-05-18 2014-07-29 Metrologic Instruments, Inc. Laser scanning code symbol reading system employing multi-channel scan data signal processing with synchronized digital gain control (SDGC) for full range scanning

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54124930A (en) * 1978-03-22 1979-09-28 Mitsubishi Heavy Ind Ltd Photo sensor system
JPS54132131A (en) * 1978-04-05 1979-10-13 Sumitomo Electric Ind Ltd Optical information reading device
DE2816325A1 (de) * 1978-04-14 1979-10-18 Computer Ges Konstanz Einrichtung zum abtasten von mustern mit einer geregelten lichtquelle
US4481667A (en) * 1981-12-21 1984-11-06 Autronics Corporation Item counting apparatus
US4677287A (en) * 1982-07-14 1987-06-30 Canon Kabushiki Kaisha Document reader with light source control
JPS61123359A (ja) * 1984-11-20 1986-06-11 Brother Ind Ltd 光学読取装置
JPS61201382A (ja) * 1985-03-04 1986-09-06 Ricoh Co Ltd 光学読取装置
DE3602008A1 (de) * 1986-01-23 1987-07-30 Sick Optik Elektronik Erwin Optische abtastvorrichtung mit einem spiegelrad
US4820911A (en) * 1986-07-11 1989-04-11 Photographic Sciences Corporation Apparatus for scanning and reading bar codes
JP2624669B2 (ja) * 1987-03-10 1997-06-25 キヤノン株式会社 画像読取装置
JPS63225925A (ja) * 1987-03-16 1988-09-20 Olympus Optical Co Ltd 光カ−ドへのデ−タ記録方法
US4933538A (en) * 1988-10-21 1990-06-12 Symbol Technologies, Inc. Scanning system with adjustable light output and/or scanning angle

Also Published As

Publication number Publication date
DE69021090T2 (de) 1995-12-21
JPH02183386A (ja) 1990-07-17
EP0378199A3 (fr) 1993-09-01
EP0378199A2 (fr) 1990-07-18
US5148008A (en) 1992-09-15
CA2007405C (fr) 1996-01-16
CA2007405A1 (fr) 1990-07-10
EP0378199B1 (fr) 1995-07-26
DE69021090D1 (de) 1995-08-31
JPH07104900B2 (ja) 1995-11-13

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Legal Events

Date Code Title Description
PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)