JPS5636772A - Binary coding circuit - Google Patents
Binary coding circuitInfo
- Publication number
- JPS5636772A JPS5636772A JP11260279A JP11260279A JPS5636772A JP S5636772 A JPS5636772 A JP S5636772A JP 11260279 A JP11260279 A JP 11260279A JP 11260279 A JP11260279 A JP 11260279A JP S5636772 A JPS5636772 A JP S5636772A
- Authority
- JP
- Japan
- Prior art keywords
- signals
- circuit
- comparators
- level
- directional
- 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 obtain binary signals that correspond to a character area and background area with accuracy, by providing an adjusting circuit that corrects fluctuations of column-directional or row-directional levels of analog electric signals.
CONSTITUTION: Analog electric signals I1WIn transmitted from photoelectric converter 1 are supplied to intercolumn level adjusting circuits 31W3n to obtain analog electric signals J1WJn having column-directional gradients corrected. Those signals J1WJn are supplied to comparators 41W4n and whitest-level detecting circuit 5. Circuit 5 detects whitest level Wmax of signals J1WJn and reference voltage generating circuit 6 generates reference voltage Vref1 by the level Wmax and supplies it to comparators 41W4n. Comparators 41W4n compare this voltage Vref1 to signals J1WJn to send binary signals B1WBn, which correspond to signals J1WJn, to discriminating circuit 7. At this time, signals B1WBn become those corresponding to the character area and background area securely by correcting the inclination of unit 1 in the row and column directions.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (10)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11260279A JPS5636772A (en) | 1979-09-03 | 1979-09-03 | Binary coding circuit |
GB8214333A GB2098774B (en) | 1979-07-20 | 1980-07-17 | Binary coding circuit |
GB8023385A GB2054927B (en) | 1979-07-20 | 1980-07-17 | Binary coding circuit |
US06/170,238 US4402087A (en) | 1979-07-20 | 1980-07-18 | Binary coding circuit |
AU60625/80A AU531865B2 (en) | 1979-07-20 | 1980-07-18 | Coding circuit for card reader |
FR8015967A FR2462063B1 (en) | 1979-07-20 | 1980-07-18 | BINARY CODING CIRCUIT |
DE3027299A DE3027299C2 (en) | 1979-07-20 | 1980-07-18 | Binary coding circuit |
DE3050784A DE3050784C2 (en) | 1979-07-20 | 1980-07-18 | Binary coding circuit |
IT8049282A IT1145660B (en) | 1979-07-20 | 1980-07-21 | Binary coding of photodetector signals for character recognition appts |
AU16764/83A AU542575B2 (en) | 1979-07-20 | 1983-07-12 | Binary coding circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11260279A JPS5636772A (en) | 1979-09-03 | 1979-09-03 | Binary coding circuit |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5636772A true JPS5636772A (en) | 1981-04-10 |
JPS617674B2 JPS617674B2 (en) | 1986-03-07 |
Family
ID=14590832
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11260279A Granted JPS5636772A (en) | 1979-07-20 | 1979-09-03 | Binary coding circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5636772A (en) |
-
1979
- 1979-09-03 JP JP11260279A patent/JPS5636772A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS617674B2 (en) | 1986-03-07 |
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