JPS6114578U - color synchronization circuit - Google Patents
color synchronization circuitInfo
- Publication number
- JPS6114578U JPS6114578U JP9669884U JP9669884U JPS6114578U JP S6114578 U JPS6114578 U JP S6114578U JP 9669884 U JP9669884 U JP 9669884U JP 9669884 U JP9669884 U JP 9669884U JP S6114578 U JPS6114578 U JP S6114578U
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- sweep
- controlled oscillator
- color
- control
- 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
(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) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【図面の簡単な説明】
第１図はこの考案の一実施例を示す構成説明図、第２図
は、第１図の一部を更に詳しく示す構成図、第３図はＡ
ＣＣ電圧と電界強度の関係を示、子特性図、第４図は第
１図の回路の一部を更に具体的に示す回路図、第５図、
第６図はそれぞれ従来の色同期回路を示す構成説明図で
ある。
３１・・・自動色信号制御回路、３２・・・位相検波回
路、３３・・・ループフィルタ、３４・・・加算回路、
３５・・・電圧制御型発振器、３６・・・キラー検波回
路、３９・・・スイープ回路、４１・・・電圧比較回路
、４２・・・スイープ速度制御回路。[BRIEF DESCRIPTION OF THE DRAWINGS] FIG. 1 is an explanatory diagram showing the configuration of an embodiment of this invention, FIG. 2 is a configuration diagram showing a part of FIG. 1 in more detail, and FIG.
Figure 4 is a circuit diagram showing a part of the circuit in Figure 1 in more detail, Figure 5 is a diagram showing the relationship between CC voltage and electric field strength.
FIG. 6 is a configuration explanatory diagram showing a conventional color synchronization circuit. 31... Automatic color signal control circuit, 32... Phase detection circuit, 33... Loop filter, 34... Addition circuit,
35... Voltage controlled oscillator, 36... Killer detection circuit, 39... Sweep circuit, 41... Voltage comparison circuit, 42... Sweep speed control circuit.
Claims (1)
位相同期させるために、バースト信号と前記電圧制御型
発振器の発振出力を同期位相検波してその検波出力によ
り制御電圧を作り前記電圧制御型発振器を制御する手段
と、カラーキラー状態で前記電圧制御型発振器の発振周
波数をスイープするために、スイニプ電圧を前記制御電
圧として与える手段とを具備した色同期回路において、
自動色信号制御電圧を用いて、弱電界になるに従って前
記スイープ電圧の変化速度を遅７くするスイープ速度儒
御手段を具備したことを特徴とする色同期回路。In order to phase-synchronize the oscillation frequency of the voltage-controlled oscillator with the color burst signal, the burst signal and the oscillation output of the voltage-controlled oscillator are subjected to synchronous phase detection, and the detected output is used to generate a control voltage to control the voltage-controlled oscillator. and means for applying a sweep voltage as the control voltage to sweep the oscillation frequency of the voltage controlled oscillator in a color killer state,
7. A color synchronization circuit comprising sweep speed control means that uses an automatic color signal control voltage to slow down the change speed of the sweep voltage as the electric field becomes weaker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9669884U JPS6114578U (en) | 1984-06-27 | 1984-06-27 | color synchronization circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9669884U JPS6114578U (en) | 1984-06-27 | 1984-06-27 | color synchronization circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6114578U true JPS6114578U (en) | 1986-01-28 |
Family
ID=30656202
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9669884U Pending JPS6114578U (en) | 1984-06-27 | 1984-06-27 | color synchronization circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6114578U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6449393A (en) * | 1987-08-19 | 1989-02-23 | Sanyo Electric Co | Chrominance signal processing circuit |
| JPS6449394A (en) * | 1987-08-19 | 1989-02-23 | Sanyo Electric Co | Chrominance signal processing circuit |
| JPH0244887A (en) * | 1988-08-04 | 1990-02-14 | Matsushita Electric Ind Co Ltd | Time base variation correction device |
-
1984
- 1984-06-27 JP JP9669884U patent/JPS6114578U/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6449393A (en) * | 1987-08-19 | 1989-02-23 | Sanyo Electric Co | Chrominance signal processing circuit |
| JPS6449394A (en) * | 1987-08-19 | 1989-02-23 | Sanyo Electric Co | Chrominance signal processing circuit |
| JPH0244887A (en) * | 1988-08-04 | 1990-02-14 | Matsushita Electric Ind Co Ltd | Time base variation correction device |
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