JPS5671169A - Optical character reader - Google Patents
Optical character readerInfo
- 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
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
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)
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 |
-
1979
- 1979-11-15 JP JP54147982A patent/JPS5926075B2/en not_active Expired
Patent Citations (2)
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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