JPS61113486U - - Google Patents
Info
- Publication number
- JPS61113486U JPS61113486U JP19629984U JP19629984U JPS61113486U JP S61113486 U JPS61113486 U JP S61113486U JP 19629984 U JP19629984 U JP 19629984U JP 19629984 U JP19629984 U JP 19629984U JP S61113486 U JPS61113486 U JP S61113486U
- Authority
- JP
- Japan
- Prior art keywords
- color
- band
- pass filter
- band pass
- changeover switch
- 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 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 1
Landscapes
- Processing Of Color Television Signals (AREA)
Description
第１図は本考案の一実施例を用いた色再生回路
のブロツク図、第２図は本考案の一実施例におけ
る色高域信号検出回路の一例を示す回路図、第３
図ａおよびｂは色高域信号検出回路の検出帯域を
、および広、狭帯域バンドパスフイルタの周波数
特性を示す図である。
１……Ｙ―Ｃ分離回路、２……色高域信号検出
回路、３および６……遅延線、４……切換スイツ
チ回路、５……広帯域バンドパスフイルタ、７…
…狭帯域バンドパスフイルタ。
FIG. 1 is a block diagram of a color reproduction circuit using an embodiment of the present invention, FIG. 2 is a circuit diagram showing an example of a color high frequency signal detection circuit according to an embodiment of the present invention, and FIG.
Figures a and b are diagrams showing the detection band of the color high frequency signal detection circuit and the frequency characteristics of the wide and narrow band pass filters. DESCRIPTION OF SYMBOLS 1... Y-C separation circuit, 2... Color high frequency signal detection circuit, 3 and 6... Delay line, 4... Changeover switch circuit, 5... Broadband bandpass filter, 7...
...Narrowband bandpass filter.
Claims (1)
フイルタにおいて、カラーテレビジヨン信号から
分離された色信号が切換スイツチ回路を介して供
給される広帯域バンドパスフイルタおよび狭帯域
バンドパスフイルタと、色信号の高域成分レベル
が所定値以上であるか否かを判別し、かつ判別出
力により切換スイツチ回路を切換え判別手段とを
備えたことを特徴とする色帯域バンドパスフイル
タ。 A color band band pass filter in a television receiver includes a wide band band pass filter and a narrow band band pass filter to which the color signal separated from the color television signal is supplied via a changeover switch circuit, and a high frequency component of the color signal. 1. A color band bandpass filter comprising: a discrimination means for discriminating whether or not a level is above a predetermined value, and switching a changeover switch circuit based on the discrimination output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19629984U JPS61113486U (en) | 1984-12-27 | 1984-12-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19629984U JPS61113486U (en) | 1984-12-27 | 1984-12-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61113486U true JPS61113486U (en) | 1986-07-17 |
Family
ID=30754004
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19629984U Pending JPS61113486U (en) | 1984-12-27 | 1984-12-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61113486U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04233888A (en) * | 1990-06-30 | 1992-08-21 | Samsung Electron Co Ltd | Intensity/chromaticity separating apparatus and method therefor |
-
1984
- 1984-12-27 JP JP19629984U patent/JPS61113486U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04233888A (en) * | 1990-06-30 | 1992-08-21 | Samsung Electron Co Ltd | Intensity/chromaticity separating apparatus and method therefor |
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