JPS6347671U - - Google Patents
Info
- Publication number
- JPS6347671U JPS6347671U JP14050886U JP14050886U JPS6347671U JP S6347671 U JPS6347671 U JP S6347671U JP 14050886 U JP14050886 U JP 14050886U JP 14050886 U JP14050886 U JP 14050886U JP S6347671 U JPS6347671 U JP S6347671U
- Authority
- JP
- Japan
- Prior art keywords
- black level
- video signal
- processing circuit
- signal processing
- level value
- 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
- 238000000034 method Methods 0.000 claims description 2
- 230000003321 amplification Effects 0.000 claims 1
- 238000003199 nucleic acid amplification method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
Landscapes
- Picture Signal Circuits (AREA)
Description
第２図は、従来の黒レベル安定化回路のシステ
ム系統図、第１図は本考案のシステム系統図であ
る。
１：前置増幅器、２：黒レベル安定化回路、３
：黒レベル設定回路、４：黒レベル設定信号、５
：プロセス系増幅器、６：ブランキングゲート回
路、７：ブラツククリツプ回路、８……検出回路
、９：演算処理部、１０：インデビジユアル黒レ
ベル制御信号、１１：ペイントブラツク制御信号
。
FIG. 2 is a system diagram of a conventional black level stabilizing circuit, and FIG. 1 is a system diagram of the present invention. 1: Preamplifier, 2: Black level stabilization circuit, 3
: Black level setting circuit, 4: Black level setting signal, 5
: process system amplifier, 6: blanking gate circuit, 7: black clip circuit, 8...detection circuit, 9: arithmetic processing section, 10: individual black level control signal, 11: paint black control signal.
Claims (1)
て、プロセス増幅系のブランキングゲート前から
、映像信号の黒レベルに相当する部分の信号を検
出する手段と、この検出した黒レベルを基準黒レ
ベル値と比較し常に該基準黒レベル値に合わせる
よう映像信号のレベルを制御する手段を有するこ
とを特徴とする映像信号処理回路。 In the video signal processing circuit of a television camera, there is a means for detecting a signal corresponding to the black level of the video signal from before the blanking gate of the process amplification system, and a means for comparing the detected black level with a reference black level value. A video signal processing circuit comprising means for controlling the level of a video signal so as to always match the reference black level value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14050886U JPS6347671U (en) | 1986-09-16 | 1986-09-16 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14050886U JPS6347671U (en) | 1986-09-16 | 1986-09-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6347671U true JPS6347671U (en) | 1988-03-31 |
Family
ID=31047421
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14050886U Pending JPS6347671U (en) | 1986-09-16 | 1986-09-16 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6347671U (en) |
-
1986
- 1986-09-16 JP JP14050886U patent/JPS6347671U/ja active Pending