JPS6118685U - Video signal amplification circuit - Google Patents
Video signal amplification circuitInfo
- Publication number
- JPS6118685U JPS6118685U JP10316784U JP10316784U JPS6118685U JP S6118685 U JPS6118685 U JP S6118685U JP 10316784 U JP10316784 U JP 10316784U JP 10316784 U JP10316784 U JP 10316784U JP S6118685 U JPS6118685 U JP S6118685U
- Authority
- JP
- Japan
- Prior art keywords
- signal
- video signal
- amplification circuit
- signal amplification
- forming means
- 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
- Color Television Image Signal Generators (AREA)
- Processing Of Color Television Signals (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は本考案に係る映像信号増幅回路の一実施例を示
すブロック図、第２図は制御電圧に対するＡＧＣ増幅回
路の利得変化の一例を示すグラフである。
第３図は三管式のカラービデオカメラの一般的な構成を
示すブ冶ツク図、第４図は従来よりプロセス増幅回路を
構成する増幅回路に用いられているＡＧＣ増幅回路を示
すブロック図である。
３４， ３５， ３９， ４０・・・・・・加算器、
３６，．３７，３８・・・・・・ＡＧＣ増幅回路。FIG. 1 is a block diagram showing an embodiment of a video signal amplification circuit according to the present invention, and FIG. 2 is a graph showing an example of a gain change of an AGC amplification circuit with respect to a control voltage. Fig. 3 is a block diagram showing the general configuration of a three-tube color video camera, and Fig. 4 is a block diagram showing an AGC amplification circuit conventionally used in an amplification circuit constituting a process amplification circuit. be. 34, 35, 39, 40...adder,
36,. 37, 38...AGC amplifier circuit.
Claims (1)
少なくとも２映像信号中一方の映像信号と他方の映像信
号との差信号を形成する差信号形成手段と、上記一方の
映像信号を増幅して出力する一方のＡＧＣ地幅回路と、
上記差信号形成手段からの差信号を増幅して出力する他
方のＡＧＣ増幅回路と、上記一方のＡＧＣ増幅回路から
の出力信号と上記他方のＡＧＣ増幅回路からの出力信号
との和信号を形成する和信号形成手段とを備えた映像信
号増幅回路。a difference signal forming means for forming a difference signal between one video signal and the other of at least two video signals of each primary color video signal based on the imaging signal obtained by the image pickup tube; and amplifying the one video signal. one AGC ground width circuit that outputs
The other AGC amplifier circuit amplifies and outputs the difference signal from the difference signal forming means, and forms a sum signal of the output signal from the one AGC amplifier circuit and the output signal from the other AGC amplifier circuit. A video signal amplification circuit comprising a sum signal forming means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10316784U JPS6118685U (en) | 1984-07-10 | 1984-07-10 | Video signal amplification circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10316784U JPS6118685U (en) | 1984-07-10 | 1984-07-10 | Video signal amplification circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6118685U true JPS6118685U (en) | 1986-02-03 |
Family
ID=30662561
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10316784U Pending JPS6118685U (en) | 1984-07-10 | 1984-07-10 | Video signal amplification circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6118685U (en) |
-
1984
- 1984-07-10 JP JP10316784U patent/JPS6118685U/en active Pending
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