ZA912756B - Light emitting diode scanner - Google Patents
Light emitting diode scannerInfo
- Publication number
- ZA912756B ZA912756B ZA912756A ZA912756A ZA912756B ZA 912756 B ZA912756 B ZA 912756B ZA 912756 A ZA912756 A ZA 912756A ZA 912756 A ZA912756 A ZA 912756A ZA 912756 B ZA912756 B ZA 912756B
- Authority
- ZA
- South Africa
- Prior art keywords
- light
- viewing window
- emitting diode
- scanner
- scan spot
- Prior art date
Links
- 238000003384 imaging method Methods 0.000 abstract 2
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
- G06K7/10881—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 constructional details of hand-held scanners
-
- 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
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K2207/00—Other aspects
- G06K2207/1013—Multi-focal
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Electromagnetism (AREA)
- Artificial Intelligence (AREA)
- Toxicology (AREA)
- General Health & Medical Sciences (AREA)
- Computer Vision & Pattern Recognition (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Mechanical Optical Scanning Systems (AREA)
- Facsimile Scanning Arrangements (AREA)
- Road Signs Or Road Markings (AREA)
- Vehicle Body Suspensions (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Input From Keyboards Or The Like (AREA)
- Image Input (AREA)
- Eye Examination Apparatus (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Analysing Materials By The Use Of Radiation (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
- Golf Clubs (AREA)
- Exposure Control For Cameras (AREA)
- Facsimile Heads (AREA)
- Cash Registers Or Receiving Machines (AREA)
- Credit Cards Or The Like (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/562,130 US5151580A (en) | 1990-08-03 | 1990-08-03 | Light emitting diode scanner |
Publications (1)
Publication Number | Publication Date |
---|---|
ZA912756B true ZA912756B (en) | 1992-04-29 |
Family
ID=24244929
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ZA912756A ZA912756B (en) | 1990-08-03 | 1991-04-12 | Light emitting diode scanner |
Country Status (13)
Country | Link |
---|---|
US (1) | US5151580A (ja) |
EP (1) | EP0469305B1 (ja) |
JP (1) | JP3081288B2 (ja) |
KR (1) | KR100209781B1 (ja) |
AT (1) | ATE178419T1 (ja) |
AU (1) | AU637214B2 (ja) |
BR (1) | BR9102294A (ja) |
CA (1) | CA2039225C (ja) |
DE (2) | DE69131062T2 (ja) |
FR (1) | FR2665555B1 (ja) |
GB (1) | GB2246653B (ja) |
IL (1) | IL98002A (ja) |
ZA (1) | ZA912756B (ja) |
Families Citing this family (29)
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US5478997A (en) * | 1988-10-21 | 1995-12-26 | Symbol Technologies, Inc. | Symbol scanning system and method having adaptive pattern generation |
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 |
US5612531A (en) * | 1993-03-08 | 1997-03-18 | Symbol Technologies, Inc. | Bar code reader with multiple sensitivity modes using variable thresholding comparisons |
US5367151A (en) * | 1989-10-30 | 1994-11-22 | Symbol Technologies, Inc. | Slim scan module with interchangeable scan element |
US5268564A (en) * | 1990-08-03 | 1993-12-07 | Symbol Technologies, Inc. | Bar code scanner actuated by detection of scanner motion |
US5392150A (en) * | 1991-05-15 | 1995-02-21 | Nippondenso Co., Ltd. | Optical information reading device |
US5331176A (en) * | 1992-04-10 | 1994-07-19 | Veritec Inc. | Hand held two dimensional symbol reader with a symbol illumination window |
US5536930A (en) * | 1992-06-03 | 1996-07-16 | Symbol Technologies, Inc. | Apparatus and method for sensing positional orientations of a portable terminal |
US5272353A (en) * | 1992-06-19 | 1993-12-21 | Symbol Technologies, Inc. | Retro-reflective scanner with return path free of collection optics |
DE9215334U1 (de) * | 1992-11-11 | 1993-01-21 | Gütermann & Co. AG, Zürich | Garnspule mit Strichcode |
DE4315105C1 (de) * | 1993-05-06 | 1994-09-01 | Sick Optik Elektronik Erwin | Verfahren und Anordnung zum Winkeljustieren einer Linienabtastvorrichtung |
US5475208A (en) * | 1994-01-27 | 1995-12-12 | Symbol Technologies, Inc. | Barcode scanner having a dead zone reducing system and a multifocal length collector |
JP3556274B2 (ja) * | 1994-07-13 | 2004-08-18 | 富士通株式会社 | 二値化回路及びそれを用いたバーコードリーダ |
US5534684A (en) * | 1994-08-30 | 1996-07-09 | Norand Corporation | Portable optical reader with motion sensing system and method |
US5578818A (en) * | 1995-05-10 | 1996-11-26 | Molecular Dynamics | LED point scanning system |
JP3070484B2 (ja) * | 1995-07-26 | 2000-07-31 | 株式会社デンソー | 光学情報読取装置および光学情報読取方法 |
NL1001637C2 (nl) * | 1995-11-13 | 1997-05-21 | Function Control Research B V | Inrichting voor het elektrisch detecteren van intensiteitsverschillen alsmede een werkwijze voor het tellen van een aantal voorwerpen gebruik makende van de inrichting. |
US6494377B1 (en) | 1995-12-18 | 2002-12-17 | Metrologic Instruments, Inc. | Method of and apparatus for processing analog scan data signals derived while scanning a bar code symbol using a laser beam, wherein the detected beam spot speed of said laser beam is used to dynamically switch into operation optimal pass-band filtering circuits |
US6422467B2 (en) | 1995-12-18 | 2002-07-23 | Metrologic Instruments, Inc. | Reading system a variable pass-band |
US6354505B1 (en) | 1995-12-18 | 2002-03-12 | Metrologic Instruments, Inc. | Scan data signal processor employing pass-band filter structures having frequency response characteristics dynamically switched into operation by control signals indicative of the focal zone of the laser beam during bar code symbol scanning |
US6572018B1 (en) | 1995-12-18 | 2003-06-03 | Metrologic Instruments, Inc. | Method of and apparatus for processing analog scan data signals derived by scanning bar code symbols using a laser beam, wherein a real-time bar code element detector is used to control the detection of zero-crossings occurring in the second derivative of said analog scan data signals |
US6073849A (en) * | 1996-11-01 | 2000-06-13 | Psc Scanning, Inc. | Electronic edge detection system using a second derivative signal processor |
EP0851378B1 (en) * | 1996-12-30 | 2004-03-10 | DATALOGIC S.p.A. | Method and device for measuring and regulating a time constant of an electronic circuit forming part of an optical code reader |
DE19710724C2 (de) * | 1997-03-14 | 2002-09-26 | Sick Ag | Optoelektronischer Sensor |
US6830190B2 (en) | 1999-02-02 | 2004-12-14 | Metrologic Instruments, Inc. | Multipath scan data signal processor having multiple signal processing paths with different operational characteristics to enable processing of signals having increased dynamic range |
US20100051696A1 (en) * | 2008-08-27 | 2010-03-04 | Symbol Technologies, Inc. | Illumination system for a bar code reader |
US20110222301A1 (en) * | 2010-03-09 | 2011-09-15 | Digital Imaging Systems GmbH and Luger Research e. U. | Dynamic lighting system |
DE102011100279A1 (de) | 2011-04-29 | 2012-10-31 | Digital Imaging Systems Gmbh | Dynamisches Beleuchtungssystem |
CN102881120B (zh) * | 2012-10-09 | 2014-07-23 | 宁波宇宏电气有限公司 | 一种具有智能报警阈值的燃气泄漏报警控制方法 |
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US3360659A (en) * | 1964-04-23 | 1967-12-26 | Outlook Engineering Corp | Compensated optical scanning system |
US3466451A (en) * | 1966-05-31 | 1969-09-09 | Gen Electric | Photoelectric device for sensing indicia on a moving medium |
GB1375963A (en) * | 1970-12-17 | 1974-12-04 | Plessey Co Ltd | Data handling systems |
CH537056A (de) * | 1971-03-22 | 1973-05-15 | Zellweger Uster Ag | Lesevorrichtung für optisch erkennbare Zeichen |
CH537057A (de) * | 1971-03-22 | 1973-05-15 | Zellweger Uster Ag | Lesevorrichtung für optisch erkennbare Zeichen |
US3699321A (en) * | 1971-04-01 | 1972-10-17 | North American Rockwell | Automatic adaptive equalizer implementation amenable to mos |
US3685723A (en) * | 1971-05-21 | 1972-08-22 | Robert M Berler | Photoelectric manual reader for printed coded tags |
US4182956A (en) * | 1974-04-01 | 1980-01-08 | DeVar Inc. | Optical light pen |
US4019026A (en) * | 1975-09-23 | 1977-04-19 | Shinko Electric Co., Ltd. | Laser beam label reader head |
US4109316A (en) * | 1976-01-21 | 1978-08-22 | Xerox Corporation | Method and apparatus for inverting the polarity of an input image formed on a surface of an image recording device |
US4115703A (en) * | 1976-11-08 | 1978-09-19 | Monarch Marking Systems, Inc. | Hand held optical reading device |
US4118675A (en) * | 1977-03-31 | 1978-10-03 | The United States Of America As Represented By The Secretary Of The Navy | Laser tuning with an acousto-optic lens |
US4113343A (en) * | 1977-05-18 | 1978-09-12 | International Business Machines Corporation | Holographic opaque document scanner |
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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 |
US4360798A (en) * | 1978-05-31 | 1982-11-23 | Symbol Technologies, Inc. | Portable laser scanning arrangement for and method of evaluating and validating bar code symbols |
US4251798A (en) * | 1978-05-31 | 1981-02-17 | Symbol Technologies | Portable laser scanning arrangement for and method of evaluating and validating bar code symbols |
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CH638067A5 (de) * | 1978-12-20 | 1983-08-31 | Ibm | Anordnung zur trennung eines optischen signals von umgebungslicht. |
US4305646A (en) * | 1979-11-19 | 1981-12-15 | Eltra Corporation | Optical system for electro-optical scanner |
US4277127A (en) * | 1979-12-03 | 1981-07-07 | The United States Of America As Represented By The Secretary Of The Army | Dopler extended depth of field imaging system with coherent object illumination |
US4387297B1 (en) * | 1980-02-29 | 1995-09-12 | Symbol Technologies Inc | Portable laser scanning system and scanning methods |
US4369361A (en) * | 1980-03-25 | 1983-01-18 | Symbol Technologies, Inc. | Portable, stand-alone, desk-top laser scanning workstation for intelligent data acquisition terminal and method of scanning |
JPS5793907U (ja) * | 1980-11-26 | 1982-06-09 | ||
US4894523A (en) * | 1981-12-28 | 1990-01-16 | Norand Corporation | Instant portable bar code reader |
US4570057A (en) * | 1981-12-28 | 1986-02-11 | Norand Corporation | Instant portable bar code reader |
US4409470A (en) * | 1982-01-25 | 1983-10-11 | Symbol Technologies, Inc. | Narrow-bodied, single-and twin-windowed portable laser scanning head for reading bar code symbols |
AT376795B (de) * | 1982-06-08 | 1984-12-27 | Elkon Elektron Geraeten | Elektronisches kleingeraet, insbesondere elektronisches fieberthermometer |
US4560862A (en) * | 1983-04-26 | 1985-12-24 | Skan-A-Matic Corp. | System for optical scanning over a large depth of field |
US4578571A (en) * | 1983-11-14 | 1986-03-25 | Numa Corporation | Portable bar code scanning device and method |
JPS61251980A (ja) * | 1985-02-28 | 1986-11-08 | シンボル テクノロジイズ インコ−ポレイテツド | 携帯用レ−ザダイオ−ド走査ヘツド |
US4897532A (en) * | 1985-02-28 | 1990-01-30 | Symbol Technologies, Inc. | Portable laser diode scanning head |
JP2641421B2 (ja) * | 1985-03-22 | 1997-08-13 | 株式会社日立製作所 | 光学的検出方法、光学的情報再生装置、及び信号検出回路 |
CA1262378A (en) * | 1986-01-22 | 1989-10-17 | Harry Albinger, Jr. | Automatic switching apparatus for an electrical appliance |
US4672215A (en) * | 1986-02-27 | 1987-06-09 | Spectra-Physics, Inc. | Hand held laser bar code reader with safety shutoff responsive to housing motion detector |
JPS62226386A (ja) * | 1986-03-28 | 1987-10-05 | Honda Motor Co Ltd | バ−コ−ド読取回路 |
US4845349A (en) * | 1986-09-30 | 1989-07-04 | Spectra-Physics, Inc. | Bar code scanner laser emission reduction |
US4795224A (en) * | 1986-10-06 | 1989-01-03 | Katsuchika Goto | Optical scanning pattern generator |
JPS63127386A (ja) * | 1986-11-18 | 1988-05-31 | Tokyo Electric Co Ltd | 画像情報読取装置の量子化回路 |
US4916318A (en) * | 1986-12-16 | 1990-04-10 | Asahi Kogaku Kogyo K.K. | Scan type optical reader with changing beam waist position |
US4816659A (en) * | 1987-10-13 | 1989-03-28 | Control Module Inc. | Bar code reader head |
US4933538A (en) * | 1988-10-21 | 1990-06-12 | Symbol Technologies, Inc. | Scanning system with adjustable light output and/or scanning angle |
JPH02159688A (ja) * | 1988-12-13 | 1990-06-19 | Sony Corp | 光学情報検出装置 |
CA1329263C (en) * | 1989-03-01 | 1994-05-03 | Mark Krichever | Bar code scanner |
JPH07101429B2 (ja) * | 1989-05-30 | 1995-11-01 | 富士通株式会社 | バーコードリーダーのアナログ信号処理方式 |
US5272323A (en) * | 1989-11-22 | 1993-12-21 | Symbol Technologies, Inc. | Digitizer for barcode scanner |
-
1990
- 1990-08-03 US US07/562,130 patent/US5151580A/en not_active Expired - Lifetime
-
1991
- 1991-03-27 CA CA002039225A patent/CA2039225C/en not_active Expired - Lifetime
- 1991-04-12 ZA ZA912756A patent/ZA912756B/xx unknown
- 1991-04-17 AU AU75117/91A patent/AU637214B2/en not_active Expired
- 1991-04-25 KR KR1019910006701A patent/KR100209781B1/ko not_active IP Right Cessation
- 1991-04-29 IL IL9800291A patent/IL98002A/en not_active IP Right Cessation
- 1991-05-29 BR BR919102294A patent/BR9102294A/pt not_active IP Right Cessation
- 1991-06-06 GB GB9112224A patent/GB2246653B/en not_active Expired - Fee Related
- 1991-06-28 DE DE69131062T patent/DE69131062T2/de not_active Expired - Fee Related
- 1991-06-28 AT AT91110750T patent/ATE178419T1/de not_active IP Right Cessation
- 1991-06-28 EP EP91110750A patent/EP0469305B1/en not_active Expired - Lifetime
- 1991-08-01 FR FR9109798A patent/FR2665555B1/fr not_active Expired - Fee Related
- 1991-08-02 JP JP03194013A patent/JP3081288B2/ja not_active Expired - Fee Related
- 1991-08-05 DE DE4125899A patent/DE4125899C2/de not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
AU7511791A (en) | 1992-02-06 |
GB2246653A (en) | 1992-02-05 |
FR2665555B1 (fr) | 1995-10-27 |
DE4125899C2 (de) | 2000-03-02 |
DE69131062D1 (de) | 1999-05-06 |
KR100209781B1 (ko) | 1999-07-15 |
EP0469305A3 (en) | 1992-09-02 |
IL98002A (en) | 1994-10-21 |
GB2246653B (en) | 1995-02-15 |
US5151580A (en) | 1992-09-29 |
IL98002A0 (en) | 1992-06-21 |
BR9102294A (pt) | 1992-04-28 |
AU637214B2 (en) | 1993-05-20 |
JPH04260985A (ja) | 1992-09-16 |
DE69131062T2 (de) | 1999-10-28 |
FR2665555A1 (fr) | 1992-02-07 |
JP3081288B2 (ja) | 2000-08-28 |
DE4125899A1 (de) | 1992-02-06 |
CA2039225C (en) | 2002-01-01 |
CA2039225A1 (en) | 1992-02-04 |
EP0469305A2 (en) | 1992-02-05 |
KR920005018A (ko) | 1992-03-28 |
EP0469305B1 (en) | 1999-03-31 |
GB9112224D0 (en) | 1991-07-24 |
ATE178419T1 (de) | 1999-04-15 |
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