JPH0357670U - - Google Patents
Info
- Publication number
- JPH0357670U JPH0357670U JP11730589U JP11730589U JPH0357670U JP H0357670 U JPH0357670 U JP H0357670U JP 11730589 U JP11730589 U JP 11730589U JP 11730589 U JP11730589 U JP 11730589U JP H0357670 U JPH0357670 U JP H0357670U
- Authority
- JP
- Japan
- Prior art keywords
- signal
- scanning speed
- modulation circuit
- speed modulation
- contour correction
- 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
- 230000005684 electric field Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Classifications
-
- Y02E60/12—
Landscapes
- Primary Cells (AREA)
- Measurement Of Current Or Voltage (AREA)
Description
第１図は本考案の第１の実施例を示すブロツク
図、第２図はその要部の具体的回路構成を示す回
路図、第３図は本考案の第２の実施例を示すブロ
ツク図である。
１３……走査速度変調回路、１４，１４′……
制御回路。
Fig. 1 is a block diagram showing a first embodiment of the present invention, Fig. 2 is a circuit diagram showing a specific circuit configuration of the main part thereof, and Fig. 3 is a block diagram showing a second embodiment of the present invention. It is. 13...Scanning speed modulation circuit, 14, 14'...
control circuit.
Claims (1)
より偏向コイルの電流を変化させて輪郭補正を行
なうようにした走査速度変調回路に於いて、受信
電界強度に応じて前記変調信号のレベルを変化さ
せる制御回路を設けることにより、受信電界強度
に応じて輪郭補正度合を変化させるようにしたこ
とを特徴とするテレビジヨン受像機の走査速度変
調回路。 (2) 映像信号の輪郭部分に相当する変調信号に
より偏向コイルの電流を変化させて輪郭補正を行
なうようにした走査速度変調回路に於いて、テレ
ビジヨン信号の無信号状態を検出し、その無信号
状態検出時に前記変調信号をカツトする制御回路
を設けることにより、無信号状態時に輪郭補正動
作を停止させるようにしたことを特徴とするテレ
ビジヨン受像機の走査速度変調回路。[Claims for Utility Model Registration] (1) In a scanning speed modulation circuit that performs contour correction by changing the current of a deflection coil using a modulation signal corresponding to the contour portion of a video signal, 1. A scanning speed modulation circuit for a television receiver, characterized in that the scanning speed modulation circuit for a television receiver is provided with a control circuit that changes the level of the modulation signal to change the degree of contour correction according to the received electric field strength. (2) In a scanning speed modulation circuit that performs contour correction by changing the deflection coil current using a modulation signal corresponding to the contour portion of the video signal, a no-signal state of the television signal is detected and the absence of the signal is detected. 1. A scanning speed modulation circuit for a television receiver, characterized in that a control circuit for cutting off the modulation signal when detecting a signal state is provided to stop contour correction operation when there is no signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11730589U JPH0357670U (en) | 1989-10-05 | 1989-10-05 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11730589U JPH0357670U (en) | 1989-10-05 | 1989-10-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0357670U true JPH0357670U (en) | 1991-06-04 |
Family
ID=31665523
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11730589U Pending JPH0357670U (en) | 1989-10-05 | 1989-10-05 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0357670U (en) |
-
1989
- 1989-10-05 JP JP11730589U patent/JPH0357670U/ja active Pending