JPS52113617A - Signal variation point detection - Google Patents
Signal variation point detectionInfo
- Publication number
- JPS52113617A JPS52113617A JP2930276A JP2930276A JPS52113617A JP S52113617 A JPS52113617 A JP S52113617A JP 2930276 A JP2930276 A JP 2930276A JP 2930276 A JP2930276 A JP 2930276A JP S52113617 A JPS52113617 A JP S52113617A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- point detection
- signal variation
- variation point
- half tone
- 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.)
- Pending
Links
Abstract
PURPOSE: To convert a monopolarity signal having a half tone such as a facsimile signal to a multipolarity signal and so arrange that while a minor level signal is detected, a differential responese of a half tone signal may diminish proportional to its lessening density gradient, thus avoiding unnecessary detection.
COPYRIGHT: (C)1977,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2930276A JPS52113617A (en) | 1976-03-19 | 1976-03-19 | Signal variation point detection |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2930276A JPS52113617A (en) | 1976-03-19 | 1976-03-19 | Signal variation point detection |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS52113617A true JPS52113617A (en) | 1977-09-22 |
Family
ID=12272418
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2930276A Pending JPS52113617A (en) | 1976-03-19 | 1976-03-19 | Signal variation point detection |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS52113617A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5411624A (en) * | 1977-06-27 | 1979-01-27 | Ricoh Co Ltd | Processing system for video signal |
JPS554152A (en) * | 1978-06-27 | 1980-01-12 | Nec Corp | Detection system for signal change point |
JPS56129479A (en) * | 1980-03-14 | 1981-10-09 | Matsushita Electric Ind Co Ltd | Detector for changing point |
-
1976
- 1976-03-19 JP JP2930276A patent/JPS52113617A/en active Pending
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5411624A (en) * | 1977-06-27 | 1979-01-27 | Ricoh Co Ltd | Processing system for video signal |
JPS5829911B2 (en) * | 1977-06-27 | 1983-06-25 | 株式会社リコー | Video signal processing method |
JPS554152A (en) * | 1978-06-27 | 1980-01-12 | Nec Corp | Detection system for signal change point |
JPS56129479A (en) * | 1980-03-14 | 1981-10-09 | Matsushita Electric Ind Co Ltd | Detector for changing point |
JPS6258588B2 (en) * | 1980-03-14 | 1987-12-07 | Matsushita Electric Ind Co Ltd |
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