JPH0182578U - - Google Patents
Info
- Publication number
- JPH0182578U JPH0182578U JP1987177394U JP17739487U JPH0182578U JP H0182578 U JPH0182578 U JP H0182578U JP 1987177394 U JP1987177394 U JP 1987177394U JP 17739487 U JP17739487 U JP 17739487U JP H0182578 U JPH0182578 U JP H0182578U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- video
- control terminal
- television receiver
- signal
- 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
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Processing Of Color Television Signals (AREA)
Description
第１図は本考案の一実施例を示すブロツク図、
第２図はビデオ信号レベルの特性図である。
１…ビデオ・クロマ回路、２…コントラスト調
整用のボリシム、３…整流用ダイオード、４…イ
ンピーダンス素子としてのトランジスタ。
FIG. 1 is a block diagram showing an embodiment of the present invention.
FIG. 2 is a characteristic diagram of the video signal level. 1... Video chroma circuit, 2... Volisim for contrast adjustment, 3... Rectifier diode, 4... Transistor as an impedance element.
Claims (1)
た電圧をビデオ・クロマ回路のコントラスト制御
端子に印加するようにしたことを特徴とするテレ
ビ受信機。 (2) ビデオ信号を整流する回路と、該整流回路
からの信号によりインピーダンスを制御される素
子とを具備し、該素子をビデオ・クロマ回路のコ
ントラスト制御端子にコントラスト調整用ボリウ
ムと共に接続したことを特徴とするテレビ受信機
。[Claims for Utility Model Registration] (1) A television receiver characterized in that a voltage inversely proportional to the level of the DC component of a video signal is applied to a contrast control terminal of a video chroma circuit. (2) It is equipped with a circuit that rectifies the video signal and an element whose impedance is controlled by the signal from the rectifier circuit, and the element is connected to the contrast control terminal of the video chroma circuit together with a contrast adjustment volume. A television receiver with special features.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987177394U JPH0182578U (en) | 1987-11-20 | 1987-11-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987177394U JPH0182578U (en) | 1987-11-20 | 1987-11-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0182578U true JPH0182578U (en) | 1989-06-01 |
Family
ID=31469058
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987177394U Pending JPH0182578U (en) | 1987-11-20 | 1987-11-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0182578U (en) |
-
1987
- 1987-11-20 JP JP1987177394U patent/JPH0182578U/ja active Pending
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