JPS59157362U - Synchronous signal separation circuit - Google Patents
Synchronous signal separation circuitInfo
- Publication number
- JPS59157362U JPS59157362U JP5077483U JP5077483U JPS59157362U JP S59157362 U JPS59157362 U JP S59157362U JP 5077483 U JP5077483 U JP 5077483U JP 5077483 U JP5077483 U JP 5077483U JP S59157362 U JPS59157362 U JP S59157362U
- Authority
- JP
- Japan
- Prior art keywords
- separation circuit
- signal separation
- circuit
- synchronous signal
- composite 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
- Synchronizing For Television (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図は従来の同期信号分離回路を示すブロック図、第
２図及び第３図は第１図の各部の波形を示す波形図、第
４図は本考案に係る同期信号分離回路の実施例を示すブ
ロック図、第５図は第４図の一部の詳細を示す回路図、
第６図はＡＧＣ信号、の特性図である。
１２・・・・・・振幅分離回路、１３．１５・・・・・
・積分回路、１４．３１・・・・・・整形回路、１６・
・・・・・垂直発振回路、１７・・・・・・水平発振回
路、４０． ４２． ４５゜４６．４７・・・・・・抵
抗、４１． ４３． ４８・・・・・・コン 〜デ
ンサ、４４・・・・・・トランジスタ。FIG. 1 is a block diagram showing a conventional synchronization signal separation circuit, FIGS. 2 and 3 are waveform diagrams showing waveforms of each part in FIG. 1, and FIG. 4 is an embodiment of the synchronization signal separation circuit according to the present invention. FIG. 5 is a circuit diagram showing some details of FIG. 4,
FIG. 6 is a characteristic diagram of the AGC signal. 12... Amplitude separation circuit, 13.15...
・Integrator circuit, 14.31... Shaping circuit, 16.
...Vertical oscillation circuit, 17...Horizontal oscillation circuit, 40. 42. 45°46.47...Resistance, 41. 43. 48... Capacitor, 44... Transistor.
Claims (1)
路において、 ′ 前記複合ビデオ信号の利得を制御するＡＧＣ回路に対す
るＡＧＣ電圧を検出するＡＧＣ電圧検出手段と、 このＡＧＣ電圧検出手段の出力信号に対応して積分時定
数を変化させ、前記複合ビデオ信号の雑音成分を減衰さ
せる雑音減衰手段とから成る整形回路を具備したことを
特徴とする同期信号分離回路。[Claims for Utility Model Registration] A synchronization signal separation circuit that extracts a synchronization signal from a composite video signal, comprising: 'AGC voltage detection means for detecting an AGC voltage for an AGC circuit that controls the gain of the composite video signal; 1. A synchronizing signal separation circuit comprising: a shaping circuit comprising a noise attenuation means for changing an integration time constant in response to an output signal of the detection means and attenuating a noise component of the composite video signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5077483U JPS59157362U (en) | 1983-04-07 | 1983-04-07 | Synchronous signal separation circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5077483U JPS59157362U (en) | 1983-04-07 | 1983-04-07 | Synchronous signal separation circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59157362U true JPS59157362U (en) | 1984-10-22 |
Family
ID=30181226
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5077483U Pending JPS59157362U (en) | 1983-04-07 | 1983-04-07 | Synchronous signal separation circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59157362U (en) |
-
1983
- 1983-04-07 JP JP5077483U patent/JPS59157362U/en active Pending
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