CN101855638A - 用于光束感测的信号处理 - Google Patents

用于光束感测的信号处理 Download PDF

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Publication number
CN101855638A
CN101855638A CN200780101463A CN200780101463A CN101855638A CN 101855638 A CN101855638 A CN 101855638A CN 200780101463 A CN200780101463 A CN 200780101463A CN 200780101463 A CN200780101463 A CN 200780101463A CN 101855638 A CN101855638 A CN 101855638A
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CN
China
Prior art keywords
filter
signal
distance
bandwidth
oscillator
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.)
Pending
Application number
CN200780101463A
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English (en)
Chinese (zh)
Inventor
中村则男
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
Original Assignee
Optoelectronics Co 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 Optoelectronics Co Ltd filed Critical Optoelectronics Co Ltd
Publication of CN101855638A publication Critical patent/CN101855638A/zh
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)
CN200780101463A 2007-11-08 2007-11-08 用于光束感测的信号处理 Pending CN101855638A (zh)

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 (1)

Publication Number Publication Date
CN101855638A true CN101855638A (zh) 2010-10-06

Family

ID=40626035

Family Applications (1)

Application Number Title Priority Date Filing Date
CN200780101463A Pending CN101855638A (zh) 2007-11-08 2007-11-08 用于光束感测的信号处理

Country Status (4)

Country Link
EP (1) EP2218034A4 (cg-RX-API-DMAC7.html)
JP (1) JP2011503712A (cg-RX-API-DMAC7.html)
CN (1) CN101855638A (cg-RX-API-DMAC7.html)
WO (1) WO2009061319A1 (cg-RX-API-DMAC7.html)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012163121A1 (zh) * 2011-05-31 2012-12-06 中兴通讯股份有限公司 数字滤波方法和装置

Family Cites Families (11)

* 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
US5140146A (en) * 1989-11-20 1992-08-18 Symbol Technologies, Inc. Bar code symbol reader with modulation enhancement
JPH06162246A (ja) * 1992-11-19 1994-06-10 Nec Eng Ltd バーコード読取装置
JP3523705B2 (ja) * 1995-03-16 2004-04-26 オリンパス株式会社 情報再生システム
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
AU2003228476A1 (en) * 2002-04-09 2003-10-27 The Escher Group, Ltd. Encoding and decoding data using angular symbology and beacons
JP4142352B2 (ja) * 2002-06-14 2008-09-03 株式会社オプトエレクトロニクス 光学的情報読取装置用モジュール
EP1714231B1 (en) * 2004-01-23 2011-09-07 Intermec IP Corporation Autofocus barcode scanner and the like employing micro-fluidic lens
JP4527411B2 (ja) * 2004-01-30 2010-08-18 株式会社オプトエレクトロニクス 光学的情報読取装置
JP4197308B2 (ja) * 2004-03-31 2008-12-17 株式会社オプトエレクトロニクス 光学的情報読取装置
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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012163121A1 (zh) * 2011-05-31 2012-12-06 中兴通讯股份有限公司 数字滤波方法和装置

Also Published As

Publication number Publication date
JP2011503712A (ja) 2011-01-27
EP2218034A4 (en) 2011-01-26
WO2009061319A1 (en) 2009-05-14
EP2218034A1 (en) 2010-08-18

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PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C02 Deemed withdrawal of patent application after publication (patent law 2001)
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20101006