JPS5546640A - Video amplifier circuit - Google Patents
Video amplifier circuitInfo
- Publication number
- JPS5546640A JPS5546640A JP11976578A JP11976578A JPS5546640A JP S5546640 A JPS5546640 A JP S5546640A JP 11976578 A JP11976578 A JP 11976578A JP 11976578 A JP11976578 A JP 11976578A JP S5546640 A JPS5546640 A JP S5546640A
- Authority
- JP
- Japan
- Prior art keywords
- crt
- circuit
- signal
- video amplifier
- amplifier circuit
- 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
- Processing Of Color Television Signals (AREA)
Abstract
PURPOSE: To obtain excellent picture quality by compensating the lowering of a high-band component of a video amplifier circuit, by adding an adder circuit, differentiating circuit and complementary symmetrical switching circuit.
CONSTITUTION: The 1st control electrode of each electron gun of color CRT is applied with three primary color signals R, G and B, and the 2nd control electrode of each electron gun is connected in common and then applied with signal Y' obtained by differentiating C and R luminance signal and then by amplifying it by complementary symmetrical switching circuits Q1 and Q2. As a result, high-band component, attenuated by signal Y', of signals R, G and B inputted to the cathode of CRT are compensated and a current through CRT approximates nearly to a rectangular wave, so that color picture quality can be defined.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11976578A JPS5546640A (en) | 1978-09-28 | 1978-09-28 | Video amplifier circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11976578A JPS5546640A (en) | 1978-09-28 | 1978-09-28 | Video amplifier circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5546640A true JPS5546640A (en) | 1980-04-01 |
Family
ID=14769622
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11976578A Pending JPS5546640A (en) | 1978-09-28 | 1978-09-28 | Video amplifier circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5546640A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5959018U (en) * | 1981-04-14 | 1984-04-17 | 松下電器産業株式会社 | Amplifier for audio system |
-
1978
- 1978-09-28 JP JP11976578A patent/JPS5546640A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5959018U (en) * | 1981-04-14 | 1984-04-17 | 松下電器産業株式会社 | Amplifier for audio system |
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