JPS53145525A - Optical character reader - Google Patents

Optical character reader

Info

Publication number
JPS53145525A
JPS53145525A JP5991477A JP5991477A JPS53145525A JP S53145525 A JPS53145525 A JP S53145525A JP 5991477 A JP5991477 A JP 5991477A JP 5991477 A JP5991477 A JP 5991477A JP S53145525 A JPS53145525 A JP S53145525A
Authority
JP
Japan
Prior art keywords
optical character
character reader
sensor
teh
slip
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.)
Granted
Application number
JP5991477A
Other languages
Japanese (ja)
Other versions
JPS5925267B2 (en
Inventor
Kazuo Nakano
Hideharu Hasu
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.)
Oki Electric Industry Co Ltd
Original Assignee
Oki Electric Industry 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 Oki Electric Industry Co Ltd filed Critical Oki Electric Industry Co Ltd
Priority to JP52059914A priority Critical patent/JPS5925267B2/en
Publication of JPS53145525A publication Critical patent/JPS53145525A/en
Publication of JPS5925267B2 publication Critical patent/JPS5925267B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Character Input (AREA)
  • Facsimile Image Signal Circuits (AREA)

Abstract

PURPOSE: To obtain an accurate character information by detecting the peak value of the white and the black areas on teh slip in the scanning section set previously by the sensor from th analog signal obtained from the sensor and then setting the slice level after obtaining the average value.
COPYRIGHT: (C)1978,JPO&Japio
JP52059914A 1977-05-25 1977-05-25 optical character reader Expired JPS5925267B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP52059914A JPS5925267B2 (en) 1977-05-25 1977-05-25 optical character reader

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP52059914A JPS5925267B2 (en) 1977-05-25 1977-05-25 optical character reader

Publications (2)

Publication Number Publication Date
JPS53145525A true JPS53145525A (en) 1978-12-18
JPS5925267B2 JPS5925267B2 (en) 1984-06-15

Family

ID=13126864

Family Applications (1)

Application Number Title Priority Date Filing Date
JP52059914A Expired JPS5925267B2 (en) 1977-05-25 1977-05-25 optical character reader

Country Status (1)

Country Link
JP (1) JPS5925267B2 (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55140974A (en) * 1979-04-20 1980-11-04 Canon Inc Information processor
JPS5623072A (en) * 1979-08-01 1981-03-04 Ricoh Co Ltd Setting system for threshold level
JPS56128947A (en) * 1980-03-13 1981-10-08 Dainippon Screen Mfg Co Ltd Method of setting highlight and shadow point density value of original picture to picture scanning recorder
JPS57150277A (en) * 1981-03-13 1982-09-17 Fuji Xerox Co Ltd Image signal processing circuit
JPS57208768A (en) * 1981-06-19 1982-12-21 Hitachi Ltd Digitizing system for video signal
JPS5876973A (en) * 1981-10-30 1983-05-10 Nippon Denso Co Ltd Optical information reader
JPS61230462A (en) * 1985-04-03 1986-10-14 Sharp Corp Optical reader
JPS6264166A (en) * 1986-04-21 1987-03-23 Canon Inc Image processor
JPS6266460U (en) * 1986-10-02 1987-04-24

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0219355U (en) * 1988-07-22 1990-02-08

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55140974A (en) * 1979-04-20 1980-11-04 Canon Inc Information processor
JPH0152952B2 (en) * 1979-04-20 1989-11-10 Canon Kk
JPS5623072A (en) * 1979-08-01 1981-03-04 Ricoh Co Ltd Setting system for threshold level
JPS56128947A (en) * 1980-03-13 1981-10-08 Dainippon Screen Mfg Co Ltd Method of setting highlight and shadow point density value of original picture to picture scanning recorder
JPS57150277A (en) * 1981-03-13 1982-09-17 Fuji Xerox Co Ltd Image signal processing circuit
JPS57208768A (en) * 1981-06-19 1982-12-21 Hitachi Ltd Digitizing system for video signal
JPS6335149B2 (en) * 1981-06-19 1988-07-13 Hitachi Ltd
JPS5876973A (en) * 1981-10-30 1983-05-10 Nippon Denso Co Ltd Optical information reader
JPS6363950B2 (en) * 1981-10-30 1988-12-09
JPS61230462A (en) * 1985-04-03 1986-10-14 Sharp Corp Optical reader
JPS6264166A (en) * 1986-04-21 1987-03-23 Canon Inc Image processor
JPS6266460U (en) * 1986-10-02 1987-04-24

Also Published As

Publication number Publication date
JPS5925267B2 (en) 1984-06-15

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