JPS5544275A - Pulse detector of differential type - Google Patents
Pulse detector of differential typeInfo
- Publication number
- JPS5544275A JPS5544275A JP11775078A JP11775078A JPS5544275A JP S5544275 A JPS5544275 A JP S5544275A JP 11775078 A JP11775078 A JP 11775078A JP 11775078 A JP11775078 A JP 11775078A JP S5544275 A JPS5544275 A JP S5544275A
- Authority
- JP
- Japan
- Prior art keywords
- terminal
- video signal
- resistors
- time constant
- comparator
- 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
Landscapes
- Television Systems (AREA)
Abstract
PURPOSE: To suitably pick up excellent binary signal pulse, by improving the effect of sag and level variation of video signal, through the selection of the charging and discharge time constant of the peak detector suitably.
CONSTITUTION: The video signal from the terminal 2 is fed to the + input terminal of the differential level comparator by dividing it with the first rate at the divider consisting of the resistors 3 and 4. Video signal inputted from the terminal 2 is given to the peak detector 9 consisting of the resistor 6, diode 7, capacitor 8. The detector 9 has sufficiently smaller charging time constant than at the horizontal scanning period, and the discharge time constant is set sufficiently smaller than the vertical blanking period and greater than the horizontal scanning period. Thus, the video signal voltage in peak detection is divided with the second ratio with the resistors 10 and 11 and given to - side of the comparator 5. Further, DC reference voltage 12 is divided with the third ratio by the resistors 10 and 12 and fed to the - side of the comparator 5 for bias superimposingly. The output signal slicing the signal at the + terminal with the reference voltage at the - terminal is picked up from the terminal 13.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11775078A JPS5544275A (en) | 1978-09-25 | 1978-09-25 | Pulse detector of differential type |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11775078A JPS5544275A (en) | 1978-09-25 | 1978-09-25 | Pulse detector of differential type |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5544275A true JPS5544275A (en) | 1980-03-28 |
JPS5753703B2 JPS5753703B2 (en) | 1982-11-15 |
Family
ID=14719382
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11775078A Granted JPS5544275A (en) | 1978-09-25 | 1978-09-25 | Pulse detector of differential type |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5544275A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5619286A (en) * | 1979-07-25 | 1981-02-23 | Sharp Corp | Data slicing circuit |
JPS5642554U (en) * | 1979-09-10 | 1981-04-18 | ||
JPS59229979A (en) * | 1983-06-10 | 1984-12-24 | Sharp Corp | Data slicing circuit |
JPH0466485U (en) * | 1990-10-19 | 1992-06-11 |
-
1978
- 1978-09-25 JP JP11775078A patent/JPS5544275A/en active Granted
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5619286A (en) * | 1979-07-25 | 1981-02-23 | Sharp Corp | Data slicing circuit |
JPS6251034B2 (en) * | 1979-07-25 | 1987-10-28 | Sharp Kk | |
JPS5642554U (en) * | 1979-09-10 | 1981-04-18 | ||
JPS615305Y2 (en) * | 1979-09-10 | 1986-02-18 | ||
JPS59229979A (en) * | 1983-06-10 | 1984-12-24 | Sharp Corp | Data slicing circuit |
JPH0213995B2 (en) * | 1983-06-10 | 1990-04-05 | Sharp Kk | |
JPH0466485U (en) * | 1990-10-19 | 1992-06-11 |
Also Published As
Publication number | Publication date |
---|---|
JPS5753703B2 (en) | 1982-11-15 |
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