JPH0476786U - - Google Patents
Info
- Publication number
- JPH0476786U JPH0476786U JP12105390U JP12105390U JPH0476786U JP H0476786 U JPH0476786 U JP H0476786U JP 12105390 U JP12105390 U JP 12105390U JP 12105390 U JP12105390 U JP 12105390U JP H0476786 U JPH0476786 U JP H0476786U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- signal
- separation circuit
- color burst
- horizontal
- 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
- 238000000926 separation method Methods 0.000 claims description 12
- 230000001360 synchronised effect Effects 0.000 claims description 5
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 3
- 239000000284 extract Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 5
Landscapes
- Processing Of Color Television Signals (AREA)
Description
第１図は、この考案によるカラーバースト信号
分離回路の一実施例を示す構成ブロツク図、第２
図は第１図の実施例における各部の信号波形タイ
ミングチヤート、第３図と第４図は第１図の実施
例の具体的回路例を示す図と各部信号波形図、第
５図は従来のカラーバースト信号分離回路の構成
ブロツク図、第６図は第５図の従来回路の問題点
を説明するための波形図である。
１……第１同期分離回路、２……Ｈ．ＢＬＫパ
ルス発生回路、３……ペデスタルクランプパルス
生成回路、４……第２同期分離回路、５……反転
回路、６……加算器、７……アナログスイツチ、
８……バンドパスフイルタ。
FIG. 1 is a configuration block diagram showing one embodiment of a color burst signal separation circuit according to this invention, and FIG.
The figure is a signal waveform timing chart of each part in the embodiment of Fig. 1, Figs. 3 and 4 are diagrams showing a specific circuit example of the embodiment of Fig. 1 and signal waveform diagrams of each part, and Fig. 5 is a timing chart of signal waveforms of each part in the embodiment of Fig. 1. FIG. 6 is a block diagram of the configuration of the color burst signal separation circuit, and is a waveform diagram for explaining the problems of the conventional circuit shown in FIG. 1...First synchronization separation circuit, 2...H. BLK pulse generation circuit, 3... Pedestal clamp pulse generation circuit, 4... Second synchronous separation circuit, 5... Inverting circuit, 6... Adder, 7... Analog switch,
8...Band pass filter.
Claims (1)
の同期分離回路と、 前記水平同期信号に基づいて水平ブランキング
パルスを取り出す回路と、 前記水平同期信号に基づいてペデスタルクラン
プパルスを生成する回路と、 前記映像信号から前記ペデスタルクランプパル
スレベル以下の信号を分離出力する第２の同期分
離回路と、 前記第１の同期分離回路出力と第２の同期分離
回路出力とを減算処理する回路と、 前記減算処理後の信号を前記水平ブランキング
パルスにより切り替え出力するスイツチ回路と、 を備えて成ることを特徴とするカラーバースト信
号分離回路。 (2) 前記スイツチ回路に接続されたバンドパス
フイルタを有することを特徴とする請求項(1)に
記載のカラーバースト信号分離回路。[Claims for Utility Model Registration] (1) First step for separating the horizontal synchronization signal from the video signal
a sync separation circuit; a circuit that extracts a horizontal blanking pulse based on the horizontal sync signal; a circuit that generates a pedestal clamp pulse based on the horizontal sync signal; and a signal below the pedestal clamp pulse level from the video signal. a second synchronous separation circuit that separates and outputs the synchronous separation circuit; a circuit that performs subtraction processing on the output of the first synchronous separation circuit and the output of the second synchronous separation circuit; the signal after the subtraction processing is switched by the horizontal blanking pulse. 1. A color burst signal separation circuit comprising: a switch circuit for outputting; and a color burst signal separation circuit. (2) The color burst signal separation circuit according to claim 1, further comprising a bandpass filter connected to the switch circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12105390U JPH0476786U (en) | 1990-11-19 | 1990-11-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12105390U JPH0476786U (en) | 1990-11-19 | 1990-11-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0476786U true JPH0476786U (en) | 1992-07-03 |
Family
ID=31868931
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12105390U Pending JPH0476786U (en) | 1990-11-19 | 1990-11-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0476786U (en) |
-
1990
- 1990-11-19 JP JP12105390U patent/JPH0476786U/ja active Pending
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