JPS5471929A - Video signal level display method - Google Patents
Video signal level display methodInfo
- Publication number
- JPS5471929A JPS5471929A JP13917777A JP13917777A JPS5471929A JP S5471929 A JPS5471929 A JP S5471929A JP 13917777 A JP13917777 A JP 13917777A JP 13917777 A JP13917777 A JP 13917777A JP S5471929 A JPS5471929 A JP S5471929A
- Authority
- JP
- Japan
- Prior art keywords
- video signal
- terminal
- inputted
- output
- signal level
- 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 facilitate the discrimination of video signal levels by converting an arbitrary video signal level to a dot signal and outputting it.
CONSTITUTION: A pulse train corresponding to the chrominance components width carrier wave and horizontal synchronizing signals are inputted to terminals 1 and 3 respectively and are supplied to FF 2 and 4 respectively, and the -Q output of FF 4 and the Q output of FF 2 are inputted to the reset terminal of FF 2 and NAND gate 5 respectively. Meanwhile, a video signal is inputted from terminal 6 and is supplied to the other input of NAND gate 5 through comparator 7, and the output of gate 5 is added to a video signal at terminal 6 to obtain a video signal including a dot signal at terminal 10. Now, FF 2 is operated as a frequency divider and outputs a pulse train, which has the half period of the chrominance components subcarrier, as a dot signal.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13917777A JPS5471929A (en) | 1977-11-18 | 1977-11-18 | Video signal level display method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13917777A JPS5471929A (en) | 1977-11-18 | 1977-11-18 | Video signal level display method |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5471929A true JPS5471929A (en) | 1979-06-08 |
Family
ID=15239355
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13917777A Pending JPS5471929A (en) | 1977-11-18 | 1977-11-18 | Video signal level display method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5471929A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5752261A (en) * | 1980-09-11 | 1982-03-27 | Canon Inc | Character processor |
JPS59149471A (en) * | 1983-02-15 | 1984-08-27 | Mitsubishi Electric Corp | Video camera |
-
1977
- 1977-11-18 JP JP13917777A patent/JPS5471929A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5752261A (en) * | 1980-09-11 | 1982-03-27 | Canon Inc | Character processor |
JPH0546133B2 (en) * | 1980-09-11 | 1993-07-13 | Canon Kk | |
JPS59149471A (en) * | 1983-02-15 | 1984-08-27 | Mitsubishi Electric Corp | Video camera |
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