DE69806723T2 - Leseverfahren und Leser für einen optischen Kode - Google Patents
Leseverfahren und Leser für einen optischen KodeInfo
- Publication number
- DE69806723T2 DE69806723T2 DE69806723T DE69806723T DE69806723T2 DE 69806723 T2 DE69806723 T2 DE 69806723T2 DE 69806723 T DE69806723 T DE 69806723T DE 69806723 T DE69806723 T DE 69806723T DE 69806723 T2 DE69806723 T2 DE 69806723T2
- Authority
- DE
- Germany
- Prior art keywords
- reader
- reading method
- optical code
- operating condition
- activating
- 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 - Lifetime
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
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Toxicology (AREA)
- General Health & Medical Sciences (AREA)
- Artificial Intelligence (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Health & Medical Sciences (AREA)
- Theoretical Computer Science (AREA)
- Optical Recording Or Reproduction (AREA)
- Mechanical Optical Scanning Systems (AREA)
- Holo Graphy (AREA)
- Light Guides In General And Applications Therefor (AREA)
- Facsimile Scanning Arrangements (AREA)
- Control Of Amplification And Gain Control (AREA)
- Electronic Switches (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP98830202A EP0947942B1 (de) | 1998-04-02 | 1998-04-02 | Leseverfahren und Leser für einen optischen Kode |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69806723D1 DE69806723D1 (de) | 2002-08-29 |
DE69806723T2 true DE69806723T2 (de) | 2003-06-12 |
Family
ID=8236604
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69806723T Expired - Lifetime DE69806723T2 (de) | 1998-04-02 | 1998-04-02 | Leseverfahren und Leser für einen optischen Kode |
Country Status (4)
Country | Link |
---|---|
US (1) | US6607131B1 (de) |
EP (1) | EP0947942B1 (de) |
AT (1) | ATE221224T1 (de) |
DE (1) | DE69806723T2 (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ATE460682T1 (de) | 2000-04-20 | 2010-03-15 | Datalogic Automation Srl | Verfahren zur kalibrierung einer photoelektrischen zelle |
JP4060545B2 (ja) * | 2001-04-27 | 2008-03-12 | 株式会社東芝 | 光学読み取り装置及びこの光学読み取り装置を備えた移動体通信機器 |
US20080078839A1 (en) * | 2006-09-28 | 2008-04-03 | Edward Barkan | Electro-optical reader with object sensor |
US9946907B2 (en) * | 2014-05-20 | 2018-04-17 | Symbol Technologies, Llc | Compact imaging module and imaging reader for, and method of, detecting objects associated with targets to be read by image capture |
Family Cites Families (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3925639A (en) * | 1974-03-25 | 1975-12-09 | Msi Data Corp | Method and apparatus for reading bar coded data wherein a light source is periodically energized |
US3949233A (en) * | 1974-08-15 | 1976-04-06 | Pitney-Bowes, Inc. | Hand held bar code reader with constant linear amplifier output |
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 |
US4240064A (en) * | 1978-09-11 | 1980-12-16 | Ncr Corporation | Power limiting circuit for bar code reader |
US4845349A (en) * | 1986-09-30 | 1989-07-04 | Spectra-Physics, Inc. | Bar code scanner laser emission reduction |
US5811785A (en) * | 1988-10-21 | 1998-09-22 | Symbol Technologies, Inc. | Scanning system with adjustable light output and/or scanning angle |
JPH03116311A (ja) * | 1989-09-29 | 1991-05-17 | Toshiba Corp | スリープモード制御方式 |
CA2044951C (en) * | 1990-06-21 | 1996-01-16 | Shinya Takenaka | Automatic gain control circuit |
US5484992A (en) * | 1990-09-17 | 1996-01-16 | Metrologic Instruments, Inc. | Automatic hand-supportable laser scanner with flickering laser scanning beam to improve visibility thereof and beam-symbol alignment during bar code symbol presence detection |
US5260553A (en) * | 1990-09-17 | 1993-11-09 | Metrologic Instruments, Inc. | Automatic hand-supportable laser bar code symbol scanner and method of reading bar code symbols using the same |
US5756982A (en) * | 1990-09-11 | 1998-05-26 | Metrologic Instruments, Inc. | Body-wearable automatic laser scanner with power-conserving control subsystem |
US5880452A (en) * | 1990-11-15 | 1999-03-09 | Geo Labs, Inc. | Laser based PCMCIA data collection system with automatic triggering for portable applications and method of use |
US5212370A (en) * | 1990-11-20 | 1993-05-18 | Ncr Corporation | Apparatus and method for extending laser life by discontinuous operation |
US5260554A (en) * | 1991-06-05 | 1993-11-09 | Psc, Inc. | System for automatically reading symbols, such as bar codes, on objects which are placed in the detection zone of a symbol reading unit, such as a bar code scanner |
CA2062106C (en) * | 1991-12-23 | 2002-08-20 | Gregg Marwin | Object sensing system for bar code laser scanners |
US5449891A (en) * | 1993-05-10 | 1995-09-12 | Symbol Technologies, Inc. | Object sensor for an optical scanner |
JP2885112B2 (ja) * | 1995-01-27 | 1999-04-19 | 株式会社デンソー | 半導体集積回路 |
EP0907138A3 (de) * | 1997-10-01 | 2000-11-02 | PSC Scanning, Inc. | System zum Feststellen eines aussermittigen Objekts für ein tragbares Streifenkode-Abtastgerät |
US6050490A (en) * | 1997-10-31 | 2000-04-18 | Hewlett-Packard Company | Handheld writing device and related data entry system |
-
1998
- 1998-04-02 DE DE69806723T patent/DE69806723T2/de not_active Expired - Lifetime
- 1998-04-02 EP EP98830202A patent/EP0947942B1/de not_active Expired - Lifetime
- 1998-04-02 AT AT98830202T patent/ATE221224T1/de not_active IP Right Cessation
-
1999
- 1999-04-01 US US09/283,155 patent/US6607131B1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US6607131B1 (en) | 2003-08-19 |
DE69806723D1 (de) | 2002-08-29 |
ATE221224T1 (de) | 2002-08-15 |
EP0947942B1 (de) | 2002-07-24 |
EP0947942A1 (de) | 1999-10-06 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8332 | No legal effect for de | ||
8370 | Indication related to discontinuation of the patent is to be deleted | ||
8364 | No opposition during term of opposition |