DE3783524D1 - Binaerkodierschaltung fuer ocr. - Google Patents

Binaerkodierschaltung fuer ocr.

Info

Publication number
DE3783524D1
DE3783524D1 DE8787109708T DE3783524T DE3783524D1 DE 3783524 D1 DE3783524 D1 DE 3783524D1 DE 8787109708 T DE8787109708 T DE 8787109708T DE 3783524 T DE3783524 T DE 3783524T DE 3783524 D1 DE3783524 D1 DE 3783524D1
Authority
DE
Germany
Prior art keywords
ocr
encoder circuit
binary encoder
binary
circuit
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 - Fee Related
Application number
DE8787109708T
Other languages
English (en)
Other versions
DE3783524T2 (de
Inventor
Naoki C O Osaka Works Maeda
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.)
Sumitomo Electric Industries Ltd
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 DE3783524D1 publication Critical patent/DE3783524D1/de
Application granted granted Critical
Publication of DE3783524T2 publication Critical patent/DE3783524T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V30/00—Character recognition; Recognising digital ink; Document-oriented image-based pattern recognition
    • G06V30/10—Character recognition
    • G06V30/16—Image preprocessing
    • G06V30/162—Quantising the image signal
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V30/00—Character recognition; Recognising digital ink; Document-oriented image-based pattern recognition
    • G06V30/10—Character recognition

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Multimedia (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Artificial Intelligence (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Character Input (AREA)
DE8787109708T 1986-07-08 1987-07-06 Binaerkodierschaltung fuer ocr. Expired - Fee Related DE3783524T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP61160446A JPH0719275B2 (ja) 1986-07-08 1986-07-08 二値化回路

Publications (2)

Publication Number Publication Date
DE3783524D1 true DE3783524D1 (de) 1993-02-25
DE3783524T2 DE3783524T2 (de) 1993-05-13

Family

ID=15715106

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8787109708T Expired - Fee Related DE3783524T2 (de) 1986-07-08 1987-07-06 Binaerkodierschaltung fuer ocr.

Country Status (5)

Country Link
US (1) US4856076A (de)
EP (1) EP0253264B1 (de)
JP (1) JPH0719275B2 (de)
CA (1) CA1291265C (de)
DE (1) DE3783524T2 (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07104907B2 (ja) * 1986-11-27 1995-11-13 住友電気工業株式会社 二値化回路
US4894727A (en) * 1987-10-20 1990-01-16 Ricoh Company, Ltd. Image processing system and method
US5001767A (en) * 1987-11-30 1991-03-19 Kabushiki Kaisha Toshiba Image processing device
US5969325A (en) * 1996-06-03 1999-10-19 Accu-Sort Systems, Inc. High speed image acquisition system and method of processing and decoding barcode symbol
US5861616A (en) * 1996-10-01 1999-01-19 Mustek Systems, Inc. Method and device for recognizing a waveform of an analog signal
US6016960A (en) * 1997-07-08 2000-01-25 Intermec Ip Corporation Rule based method and apparatus for processing reflectance signals from machine-readable symbols or images
US6012640A (en) * 1997-07-08 2000-01-11 Intermec Ip Corporation Rule based and fuzzy logic method and apparatus for processing reflectance signals from machine-readable symbols or images
US6785344B1 (en) * 2000-04-11 2004-08-31 Terawave Communications, Inc. Fast threshold determination for packet-multiplexed digital communication
US20050095565A1 (en) * 2003-10-30 2005-05-05 Steinberg Joel S. Method of teaching mathematical operations and functions using a new numerical notation system

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3534334A (en) * 1967-06-20 1970-10-13 Ibm Automatic control of a threshold in the digitization of an analog signal
US3987413A (en) * 1975-01-22 1976-10-19 Xerox Corporation Detection system
JPS57150277A (en) * 1981-03-13 1982-09-17 Fuji Xerox Co Ltd Image signal processing circuit
US4442544A (en) * 1981-07-09 1984-04-10 Xerox Corporation Adaptive thresholder
US4430748A (en) * 1981-09-21 1984-02-07 Xerox Corporation Image thresholding system
DE3174105D1 (en) * 1981-12-23 1986-04-17 Ibm Method of recognizing characters in an optical document reader
US4468704A (en) * 1982-10-28 1984-08-28 Xerox Corporation Adaptive thresholder

Also Published As

Publication number Publication date
JPS6316393A (ja) 1988-01-23
JPH0719275B2 (ja) 1995-03-06
EP0253264A3 (en) 1990-08-22
EP0253264B1 (de) 1993-01-13
CA1291265C (en) 1991-10-22
US4856076A (en) 1989-08-08
EP0253264A2 (de) 1988-01-20
DE3783524T2 (de) 1993-05-13

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee