JPH042189U - - Google Patents
Info
- Publication number
- JPH042189U JPH042189U JP4270790U JP4270790U JPH042189U JP H042189 U JPH042189 U JP H042189U JP 4270790 U JP4270790 U JP 4270790U JP 4270790 U JP4270790 U JP 4270790U JP H042189 U JPH042189 U JP H042189U
- Authority
- JP
- Japan
- Prior art keywords
- signal
- burst
- circuit
- control output
- level detection
- 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
- 238000001514 detection method Methods 0.000 claims description 8
- 238000000926 separation method Methods 0.000 claims description 2
- 239000002131 composite material Substances 0.000 claims 4
- 230000001360 synchronised effect Effects 0.000 claims 4
- 239000013643 reference control Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 5
Landscapes
- Processing Of Color Television Signals (AREA)
Description
第１図は本考案のバースト信号レベルの検出回
路のブロツク図、第２図は従来回路のブロツク図
、第３図は本考案回路におけるバースト信号レベ
ルと制御電圧の関係を示す特性図、第４図は本考
案回路と複同調回路とを組合せたときの入力バー
スト信号レベルと補正された出力バースト信号レ
ベルとの関係を示す特性図である。
１……同期分離回路、２……バーストゲートパ
ルス生成回路、３……バーストレベル検出回路、
４……制御出力回路、５……バースト信号フイル
タ回路、６……制御出力利得調整回路、１０……
バースト信号レベル検出回路。
Figure 1 is a block diagram of the burst signal level detection circuit of the present invention, Figure 2 is a block diagram of a conventional circuit, Figure 3 is a characteristic diagram showing the relationship between the burst signal level and control voltage in the circuit of the present invention, and Figure 4 is a block diagram of the burst signal level detection circuit of the present invention. The figure is a characteristic diagram showing the relationship between the input burst signal level and the corrected output burst signal level when the circuit of the present invention and the double-tuned circuit are combined. 1... Synchronization separation circuit, 2... Burst gate pulse generation circuit, 3... Burst level detection circuit,
4... Control output circuit, 5... Burst signal filter circuit, 6... Control output gain adjustment circuit, 10...
Burst signal level detection circuit.
Claims (1)
分離する同期信号分離回路と、該同期分離された
信号からバーストゲートパルス信号を生成するバ
ーストゲートパルス生成回路と、上記入来したコ
ンポジツトビデオ信号に含まれるバースト信号成
分を除去するフイルタ回路と、上記入来したコン
ポジツトビデオ信号に含まれるバースト信号の大
きさを検出するバーストレベル検出回路と、該検
出されたバースト信号の大きさに比例した制御信
号を出力する制御出力回路とよりなるバースト信
号レベル検出回路において、 上記制御出力回路より出力される基準制御電圧
を基準として、その制御電圧の利得を調整できる
、制御出力利得調整回路を更に備えたことを特徴
とするバースト信号レベル検出回路。[Claims for Utility Model Registration] A synchronous signal separation circuit that inputs a composite video signal and separates a synchronous signal, a burst gate pulse generation circuit that generates a burst gate pulse signal from the synchronous separated signal, and a burst gate pulse generation circuit that generates a burst gate pulse signal from the synchronous separated signal; a filter circuit for removing burst signal components included in the incoming composite video signal; a burst level detection circuit for detecting the magnitude of the burst signal included in the incoming composite video signal; and a burst level detection circuit for detecting the magnitude of the burst signal included in the incoming composite video signal; In a burst signal level detection circuit comprising a control output circuit that outputs a control signal proportional to the magnitude of the control output circuit, the control output circuit has a control output that can adjust the gain of the control voltage with reference to the reference control voltage output from the control output circuit. A burst signal level detection circuit further comprising a gain adjustment circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4270790U JPH042189U (en) | 1990-04-20 | 1990-04-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4270790U JPH042189U (en) | 1990-04-20 | 1990-04-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH042189U true JPH042189U (en) | 1992-01-09 |
Family
ID=31554487
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4270790U Pending JPH042189U (en) | 1990-04-20 | 1990-04-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH042189U (en) |
-
1990
- 1990-04-20 JP JP4270790U patent/JPH042189U/ja active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| TW334661B (en) | Reproduction circuit for skin color in video signals provides a skin-color-area detector detects skin-color-area in one frame from input video signals, and outputs it | |
| JPH042189U (en) | ||
| JPH0392882U (en) | ||
| JPS6214858U (en) | ||
| JPH03105082U (en) | ||
| JPH0336271U (en) | ||
| JPH0344986U (en) | ||
| JPS62173878U (en) | ||
| JPH03130686U (en) | ||
| JPH0473882U (en) | ||
| JPS6293863U (en) | ||
| JPH0167884U (en) | ||
| JPH0390190U (en) | ||
| JPH0314885U (en) | ||
| JPS6372986U (en) | ||
| JPS6082877U (en) | Vertical synchronization signal separation circuit for television receivers | |
| JPS62139177U (en) | ||
| JPS6448973U (en) | ||
| JPH01139673U (en) | ||
| JPS62152572U (en) | ||
| JPH0268573U (en) | ||
| JPH01100583U (en) | ||
| JPH01159481U (en) | ||
| JPS6037975U (en) | Synchronous signal separation circuit | |
| JPS62155587U (en) |