JPS63152386U - - Google Patents
Info
- Publication number
- JPS63152386U JPS63152386U JP4377387U JP4377387U JPS63152386U JP S63152386 U JPS63152386 U JP S63152386U JP 4377387 U JP4377387 U JP 4377387U JP 4377387 U JP4377387 U JP 4377387U JP S63152386 U JPS63152386 U JP S63152386U
- Authority
- JP
- Japan
- Prior art keywords
- luminance
- carrier color
- color signal
- chromaticity
- separator
- 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.)
- Granted
Links
- 238000000605 extraction Methods 0.000 claims 2
- 238000000926 separation method Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 5
Description
第１図は本考案の実施例を示すブロツク線図、
第２図は従来例を示すブロツク線図、第３図は実
施例及び従来例の説明に供する波形図、第４図は
水平相関器の一例を示すブロツク線図、第５図は
水平相関器の説明に供する波形図である。
４は輝度／色度分離器、９は水平相関器、１１
は減算器、１２はミユート増幅器、１３は検出器
である。
FIG. 1 is a block diagram showing an embodiment of the present invention;
Fig. 2 is a block diagram showing a conventional example, Fig. 3 is a waveform diagram for explaining the embodiment and the conventional example, Fig. 4 is a block diagram showing an example of a horizontal correlator, and Fig. 5 is a horizontal correlator. FIG. 2 is a waveform diagram for explaining. 4 is a luminance/chromaticity separator, 9 is a horizontal correlator, 11
is a subtracter, 12 is a miute amplifier, and 13 is a detector.
Claims (1)
と、該輝度／色度分離器から得られた輝度信号が
供給される搬送色信号成分抽出回路と、上記輝度
信号から上記搬送色信号成分を減算する減算器と
を有し、該減算器から搬送色信号成分の除去され
た輝度信号を出力すると共に、上記輝度／色度分
離器から搬送色信号を出力するようにした輝度／
色度分離回路において、 上記輝度／色度分離器からの搬送色信号を検出
する検出器と、 該検出器によつて搬送色信号が検出されなかつ
たときは、上記搬送色信号成分抽出回路から減算
器への搬送色信号成分の供給を遮断する遮断回路
とを設けて成る輝度／色度分離回路。[Claims for Utility Model Registration] A luminance/chromaticity separator to which a color video signal is supplied, a carrier color signal component extraction circuit to which a luminance signal obtained from the luminance/chromaticity separator is supplied, and the luminance/chromaticity separator a subtracter for subtracting the carrier color signal component from the signal, outputting a luminance signal from which the carrier color signal component has been removed from the subtracter, and outputting a carrier color signal from the luminance/chromaticity separator. Brightness/
The chromaticity separation circuit includes a detector for detecting the carrier color signal from the luminance/chromaticity separator, and a detector for detecting the carrier color signal from the carrier color signal component extraction circuit when the carrier color signal is not detected by the detector. A luminance/chromaticity separation circuit comprising a cutoff circuit that cuts off the supply of a carrier color signal component to a subtracter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987043773U JPH0644220Y2 (en) | 1987-03-25 | 1987-03-25 | Luminance / Chromaticity separation circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987043773U JPH0644220Y2 (en) | 1987-03-25 | 1987-03-25 | Luminance / Chromaticity separation circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63152386U true JPS63152386U (en) | 1988-10-06 |
| JPH0644220Y2 JPH0644220Y2 (en) | 1994-11-14 |
Family
ID=30860953
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987043773U Expired - Lifetime JPH0644220Y2 (en) | 1987-03-25 | 1987-03-25 | Luminance / Chromaticity separation circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0644220Y2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS595794A (en) * | 1982-07-01 | 1984-01-12 | Matsushita Electric Ind Co Ltd | Dot disturbance removing device |
| JPS60165892A (en) * | 1984-02-09 | 1985-08-29 | Sony Corp | Secondary beat cancel circuit |
-
1987
- 1987-03-25 JP JP1987043773U patent/JPH0644220Y2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS595794A (en) * | 1982-07-01 | 1984-01-12 | Matsushita Electric Ind Co Ltd | Dot disturbance removing device |
| JPS60165892A (en) * | 1984-02-09 | 1985-08-29 | Sony Corp | Secondary beat cancel circuit |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0644220Y2 (en) | 1994-11-14 |
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