JPH01115392U - - Google Patents
Info
- Publication number
- JPH01115392U JPH01115392U JP974988U JP974988U JPH01115392U JP H01115392 U JPH01115392 U JP H01115392U JP 974988 U JP974988 U JP 974988U JP 974988 U JP974988 U JP 974988U JP H01115392 U JPH01115392 U JP H01115392U
- Authority
- JP
- Japan
- Prior art keywords
- color
- receiver
- current
- absence
- detection circuit
- 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 4
- 238000010586 diagram Methods 0.000 description 5
Landscapes
- Details Of Television Scanning (AREA)
- Processing Of Color Television Signals (AREA)
Description
第１図は本考案によるカラーＴＶ受像機の一実
施例を示す回路図、第２図はオートホワイトバラ
ンス機能のためのホワイトバランス検出用信号を
説明するための波形図、第３図は従来のカラーＴ
Ｖ受像機の一例を示す回路図、第４図は従来の問
題点を説明するための図である。
５……垂直偏向コイル、２０……無信号検出回
路、２１……直流電流供給回路。
Fig. 1 is a circuit diagram showing an embodiment of a color TV receiver according to the present invention, Fig. 2 is a waveform diagram for explaining a white balance detection signal for the auto white balance function, and Fig. 3 is a conventional circuit diagram. Color T
FIG. 4 is a circuit diagram showing an example of a V receiver, and is a diagram for explaining conventional problems. 5... Vertical deflection coil, 20... No signal detection circuit, 21... DC current supply circuit.
Claims (1)
Ｖ受像機において、 映像信号が無いことを検出する無信号検出回路
と、 該無信号検出回路が映像信号の無いことを検出
しているとき、垂直偏向コイルに１フイールドの
前半のノコギリ波電流と同じ方向に直流電流を流
す直流電流供給回路とを備える、 ことを特徴とするカラーＴＶ受像機。[Claims for Utility Model Registration] Color T with auto white balance function
In a V receiver, there is a no-signal detection circuit that detects the absence of a video signal, and when the no-signal detection circuit detects the absence of a video signal, a sawtooth wave current is applied to the vertical deflection coil in the first half of one field. A color TV receiver comprising: a DC current supply circuit that flows DC current in the same direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP974988U JPH01115392U (en) | 1988-01-29 | 1988-01-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP974988U JPH01115392U (en) | 1988-01-29 | 1988-01-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01115392U true JPH01115392U (en) | 1989-08-03 |
Family
ID=31216767
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP974988U Pending JPH01115392U (en) | 1988-01-29 | 1988-01-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01115392U (en) |
-
1988
- 1988-01-29 JP JP974988U patent/JPH01115392U/ja active Pending
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