JP2011503712A - 光線検知のための信号処理 - Google Patents

光線検知のための信号処理 Download PDF

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Publication number
JP2011503712A
JP2011503712A JP2010533056A JP2010533056A JP2011503712A JP 2011503712 A JP2011503712 A JP 2011503712A JP 2010533056 A JP2010533056 A JP 2010533056A JP 2010533056 A JP2010533056 A JP 2010533056A JP 2011503712 A JP2011503712 A JP 2011503712A
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JP
Japan
Prior art keywords
filter
signal
noise ratio
improving
distance
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Pending
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JP2010533056A
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English (en)
Japanese (ja)
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JP2011503712A5 (enExample
Inventor
則男 中村
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.)
Optoelectronics Co Ltd
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Optoelectronics Co Ltd
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Publication date
Application filed by Optoelectronics Co Ltd filed Critical Optoelectronics Co Ltd
Publication of JP2011503712A publication Critical patent/JP2011503712A/ja
Publication of JP2011503712A5 publication Critical patent/JP2011503712A5/ja
Pending legal-status Critical Current

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    • 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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H03G3/3084—Automatic control in amplifiers having semiconductor devices in receivers or transmitters for electromagnetic waves other than radiowaves, e.g. lightwaves

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  • 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)
  • Optical Radar Systems And Details Thereof (AREA)
JP2010533056A 2007-11-08 2007-11-08 光線検知のための信号処理 Pending JP2011503712A (ja)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2007/084071 WO2009061319A1 (en) 2007-11-08 2007-11-08 Signal processing for light beam sensing

Publications (2)

Publication Number Publication Date
JP2011503712A true JP2011503712A (ja) 2011-01-27
JP2011503712A5 JP2011503712A5 (enExample) 2012-03-29

Family

ID=40626035

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2010533056A Pending JP2011503712A (ja) 2007-11-08 2007-11-08 光線検知のための信号処理

Country Status (4)

Country Link
EP (1) EP2218034A4 (enExample)
JP (1) JP2011503712A (enExample)
CN (1) CN101855638A (enExample)
WO (1) WO2009061319A1 (enExample)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102811036A (zh) * 2011-05-31 2012-12-05 中兴通讯股份有限公司 数字滤波方法和装置

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5588171A (en) * 1978-12-27 1980-07-03 Toshiba Corp Bar-code reader
JPH03175590A (ja) * 1989-11-20 1991-07-30 Symbol Technol Inc バーコード記号の読取り装置および方法
JPH06162246A (ja) * 1992-11-19 1994-06-10 Nec Eng Ltd バーコード読取装置
JPH08255207A (ja) * 1995-03-16 1996-10-01 Olympus Optical Co Ltd 二値化回路
JP2004021567A (ja) * 2002-06-14 2004-01-22 Optoelectronics Co Ltd 光学的情報読取装置用モジュール
JP2005216178A (ja) * 2004-01-30 2005-08-11 Optoelectronics Co Ltd 光学的情報読取装置
JP2005293327A (ja) * 2004-03-31 2005-10-20 Optoelectronics Co Ltd 光学的情報読取装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7607581B2 (en) * 2003-11-13 2009-10-27 Metrologic Instruments, Inc. Digital imaging-based code symbol reading system permitting modification of system features and functionalities
US20030190056A1 (en) * 2002-04-09 2003-10-09 Eric Metois System and method for encoding and decoding data and position information using angular symbology and beacons
US7296749B2 (en) * 2004-01-23 2007-11-20 Intermec Ip Corp. Autofocus barcode scanner and the like employing micro-fluidic lens
US7216811B2 (en) * 2004-04-16 2007-05-15 Microscan Systems Incorporated Barcode scanner with linear automatic gain control (AGC), modulation transfer function detector, and selectable noise filter

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5588171A (en) * 1978-12-27 1980-07-03 Toshiba Corp Bar-code reader
JPH03175590A (ja) * 1989-11-20 1991-07-30 Symbol Technol Inc バーコード記号の読取り装置および方法
JPH06162246A (ja) * 1992-11-19 1994-06-10 Nec Eng Ltd バーコード読取装置
JPH08255207A (ja) * 1995-03-16 1996-10-01 Olympus Optical Co Ltd 二値化回路
JP2004021567A (ja) * 2002-06-14 2004-01-22 Optoelectronics Co Ltd 光学的情報読取装置用モジュール
JP2005216178A (ja) * 2004-01-30 2005-08-11 Optoelectronics Co Ltd 光学的情報読取装置
JP2005293327A (ja) * 2004-03-31 2005-10-20 Optoelectronics Co Ltd 光学的情報読取装置

Also Published As

Publication number Publication date
WO2009061319A1 (en) 2009-05-14
CN101855638A (zh) 2010-10-06
EP2218034A1 (en) 2010-08-18
EP2218034A4 (en) 2011-01-26

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