JPS5730477A - Waveform monitoring circuit of telecamera - Google Patents
Waveform monitoring circuit of telecameraInfo
- Publication number
- JPS5730477A JPS5730477A JP10461580A JP10461580A JPS5730477A JP S5730477 A JPS5730477 A JP S5730477A JP 10461580 A JP10461580 A JP 10461580A JP 10461580 A JP10461580 A JP 10461580A JP S5730477 A JPS5730477 A JP S5730477A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- supplied
- generate
- input terminal
- video
- 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
Landscapes
- Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
Abstract
PURPOSE:To obtain a waveform monitoring screen by simple circuit constitution by projecting variations of the prescribed value of a video signal as a bright point in every horizontal retracing. CONSTITUTION:A video signal V arriving at an input terminal 1 is supplied to a diode 17 for white level peak value detection to supply the peak of its white level to a capacitor 18, which is charged in the off period of a switch 4 operated with a clamp pulse (c) from an input terminal 5 and also discharged on its on period to generate a signal d3. The signal d3 is compared by a comparator 19 with a horizontal deflecting pulse d2 from an input terminal 12 to generate a signal (h). A differentiating circuit 20 generates a signal (i) which has pulses only at rises of the signal (h). The signal (i) is supplied to a blanking pulse amplifier 21 to generate a signal (j), which is supplied to a video amplifier 22 to obtain a signal (k) from a terminal 23. At the timing of this (k), a bright point appears.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10461580A JPS5730477A (en) | 1980-07-30 | 1980-07-30 | Waveform monitoring circuit of telecamera |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10461580A JPS5730477A (en) | 1980-07-30 | 1980-07-30 | Waveform monitoring circuit of telecamera |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5730477A true JPS5730477A (en) | 1982-02-18 |
Family
ID=14385338
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10461580A Pending JPS5730477A (en) | 1980-07-30 | 1980-07-30 | Waveform monitoring circuit of telecamera |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5730477A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57159178A (en) * | 1981-03-26 | 1982-10-01 | Hitachi Denshi Ltd | Level indicator circuit |
-
1980
- 1980-07-30 JP JP10461580A patent/JPS5730477A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57159178A (en) * | 1981-03-26 | 1982-10-01 | Hitachi Denshi Ltd | Level indicator circuit |
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