JPS54146530A - Binary coding circuit - Google Patents
Binary coding circuitInfo
- Publication number
- JPS54146530A JPS54146530A JP5511878A JP5511878A JPS54146530A JP S54146530 A JPS54146530 A JP S54146530A JP 5511878 A JP5511878 A JP 5511878A JP 5511878 A JP5511878 A JP 5511878A JP S54146530 A JPS54146530 A JP S54146530A
- Authority
- JP
- Japan
- Prior art keywords
- output
- black
- white
- comparator
- delivered
- 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 ensure an accurate reproduction the black and white lines on the white and black backgrounds each by using two comparator circuits with the binary coding circuit for the facsimile signal or the like.
CONSTITUTION: Analog picture signal 200 is supplied to comparator 300 and 301 to be compared with threshold value V1 and V2 (V1>V2), and information P1 and P2 showing the white line on the black background can be taken out by output 201 obtained through comparator 300 with the information showing the black thin line on the white background is erased. While output 202 of the other comparator 301 takes out information P3 and P4 showing the black line on the white background. These two output 200 and 201 are switched by selector 302 and then delivered. In other words, FF401 is set when output 202 is "1" and the output is delivered through AND gate 403. When output 201 becomes "0", FF401 is reset and the output is delivered through AND gate 404.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53055118A JPS5916316B2 (en) | 1978-05-09 | 1978-05-09 | Binarization circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53055118A JPS5916316B2 (en) | 1978-05-09 | 1978-05-09 | Binarization circuit |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS54146530A true JPS54146530A (en) | 1979-11-15 |
JPS5916316B2 JPS5916316B2 (en) | 1984-04-14 |
Family
ID=12989829
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP53055118A Expired JPS5916316B2 (en) | 1978-05-09 | 1978-05-09 | Binarization circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5916316B2 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56117423A (en) * | 1980-02-22 | 1981-09-14 | Asahi Optical Co Ltd | Binary coding circuit by multistage threshold level |
JPS5762466A (en) * | 1980-10-03 | 1982-04-15 | Canon Inc | Original reader |
JPS6031678A (en) * | 1983-07-30 | 1985-02-18 | Tohoku Richo Kk | Binarization circuit |
JPS6292677A (en) * | 1985-10-18 | 1987-04-28 | Matsushita Graphic Commun Syst Inc | Career correction reader |
-
1978
- 1978-05-09 JP JP53055118A patent/JPS5916316B2/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56117423A (en) * | 1980-02-22 | 1981-09-14 | Asahi Optical Co Ltd | Binary coding circuit by multistage threshold level |
JPS5762466A (en) * | 1980-10-03 | 1982-04-15 | Canon Inc | Original reader |
JPS6031678A (en) * | 1983-07-30 | 1985-02-18 | Tohoku Richo Kk | Binarization circuit |
JPS6292677A (en) * | 1985-10-18 | 1987-04-28 | Matsushita Graphic Commun Syst Inc | Career correction reader |
Also Published As
Publication number | Publication date |
---|---|
JPS5916316B2 (en) | 1984-04-14 |
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