JPS5330216A - Dinary signal control circuit - Google Patents
Dinary signal control circuitInfo
- Publication number
- JPS5330216A JPS5330216A JP10523076A JP10523076A JPS5330216A JP S5330216 A JPS5330216 A JP S5330216A JP 10523076 A JP10523076 A JP 10523076A JP 10523076 A JP10523076 A JP 10523076A JP S5330216 A JPS5330216 A JP S5330216A
- Authority
- JP
- Japan
- Prior art keywords
- dinary
- control circuit
- signal control
- level
- irespective
- 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 secure a reproduction of a good-quality picture image irespective of the background density or contrast of the manuscript, by setting automatically the threshold level of a binary circuit to a level abundant in the white and black changing points.
COPYRIGHT: (C)1978,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP51105230A JPS5829674B2 (en) | 1976-09-01 | 1976-09-01 | Binary signal control circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP51105230A JPS5829674B2 (en) | 1976-09-01 | 1976-09-01 | Binary signal control circuit |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5330216A true JPS5330216A (en) | 1978-03-22 |
JPS5829674B2 JPS5829674B2 (en) | 1983-06-24 |
Family
ID=14401844
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP51105230A Expired JPS5829674B2 (en) | 1976-09-01 | 1976-09-01 | Binary signal control circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5829674B2 (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS54158116A (en) * | 1978-06-02 | 1979-12-13 | Mitsubishi Electric Corp | Automatic contrast adjusting device |
JPS5829271A (en) * | 1981-08-17 | 1983-02-21 | Ricoh Co Ltd | Automatic slice level selection system |
JPS58124368A (en) * | 1982-01-20 | 1983-07-23 | Nec Corp | Automatic level control circuit |
JPS59167772U (en) * | 1983-04-27 | 1984-11-09 | 日産ディーゼル工業株式会社 | Fully hydraulic steering system |
JPS6173480A (en) * | 1984-09-19 | 1986-04-15 | Canon Inc | Picture processing system |
JPS6173481A (en) * | 1984-09-19 | 1986-04-15 | Canon Inc | Picture processing system |
JPS6173482A (en) * | 1984-09-19 | 1986-04-15 | Canon Inc | Picture processing system |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3334385B2 (en) | 1994-12-20 | 2002-10-15 | セイコーエプソン株式会社 | Image reading apparatus and reading method |
-
1976
- 1976-09-01 JP JP51105230A patent/JPS5829674B2/en not_active Expired
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS54158116A (en) * | 1978-06-02 | 1979-12-13 | Mitsubishi Electric Corp | Automatic contrast adjusting device |
JPS6126744B2 (en) * | 1978-06-02 | 1986-06-21 | Mitsubishi Electric Corp | |
JPS5829271A (en) * | 1981-08-17 | 1983-02-21 | Ricoh Co Ltd | Automatic slice level selection system |
JPS58124368A (en) * | 1982-01-20 | 1983-07-23 | Nec Corp | Automatic level control circuit |
JPS59167772U (en) * | 1983-04-27 | 1984-11-09 | 日産ディーゼル工業株式会社 | Fully hydraulic steering system |
JPS6173480A (en) * | 1984-09-19 | 1986-04-15 | Canon Inc | Picture processing system |
JPS6173481A (en) * | 1984-09-19 | 1986-04-15 | Canon Inc | Picture processing system |
JPS6173482A (en) * | 1984-09-19 | 1986-04-15 | Canon Inc | Picture processing system |
JPH0570975B2 (en) * | 1984-09-19 | 1993-10-06 | Canon Kk | |
JPH0582782B2 (en) * | 1984-09-19 | 1993-11-22 | Canon Kk |
Also Published As
Publication number | Publication date |
---|---|
JPS5829674B2 (en) | 1983-06-24 |
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