JPS5671169A - Optical character reader - Google Patents

Optical character reader

Info

Publication number
JPS5671169A
JPS5671169A JP14798279A JP14798279A JPS5671169A JP S5671169 A JPS5671169 A JP S5671169A JP 14798279 A JP14798279 A JP 14798279A JP 14798279 A JP14798279 A JP 14798279A JP S5671169 A JPS5671169 A JP S5671169A
Authority
JP
Japan
Prior art keywords
blank part
character
horizontal
circuit
circuits
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
JP14798279A
Other languages
Japanese (ja)
Other versions
JPS5926075B2 (en
Inventor
Kiyoyoshi Nara
Tetsuo Saito
Toshio Takebe
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP54147982A priority Critical patent/JPS5926075B2/en
Publication of JPS5671169A publication Critical patent/JPS5671169A/en
Publication of JPS5926075B2 publication Critical patent/JPS5926075B2/en
Expired legal-status Critical Current

Links

Abstract

PURPOSE: To detect a blank part accurately, by detecting the blank part, which is the start condition for information read, on a basis of the number of bits of black information in horizontal and vertical projections.
CONSTITUTION: The signal obtained by scanning of scanner 3 is quantized in quantizing circuit 4 and is not only sent to character detecting circuit 9 but also supplied to horizontal and vertical projection circuits 11 and 12. Numbers H and W of bits of black information included in information from horizontal and vertical projection circuits 11 and 12 are counted by control circuit 17 and are compared with constants K1 and K2 by comparing circuits 13 and 14 respectively. FF16 is set by comparison results, and character detecting circuit 9 and character discriminating circuit 10 are operated by set of FF16. At a result, the blank part can be detected accurately even if the blank part is dirty and smudged somewhat, and the blank part and the character part can be distinguished from each other distinctly.
COPYRIGHT: (C)1981,JPO&Japio
JP54147982A 1979-11-15 1979-11-15 optical character reader Expired JPS5926075B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54147982A JPS5926075B2 (en) 1979-11-15 1979-11-15 optical character reader

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54147982A JPS5926075B2 (en) 1979-11-15 1979-11-15 optical character reader

Publications (2)

Publication Number Publication Date
JPS5671169A true JPS5671169A (en) 1981-06-13
JPS5926075B2 JPS5926075B2 (en) 1984-06-23

Family

ID=15442487

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54147982A Expired JPS5926075B2 (en) 1979-11-15 1979-11-15 optical character reader

Country Status (1)

Country Link
JP (1) JPS5926075B2 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5161736A (en) * 1974-11-27 1976-05-28 Tokyo Keiki Kk Mojininshikihoho
JPS51104226A (en) * 1975-03-12 1976-09-14 Tokyo Keiki Kk Mojininshikihoho

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5161736A (en) * 1974-11-27 1976-05-28 Tokyo Keiki Kk Mojininshikihoho
JPS51104226A (en) * 1975-03-12 1976-09-14 Tokyo Keiki Kk Mojininshikihoho

Also Published As

Publication number Publication date
JPS5926075B2 (en) 1984-06-23

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