JPH0181086U - - Google Patents
Info
- Publication number
- JPH0181086U JPH0181086U JP1987176081U JP17608187U JPH0181086U JP H0181086 U JPH0181086 U JP H0181086U JP 1987176081 U JP1987176081 U JP 1987176081U JP 17608187 U JP17608187 U JP 17608187U JP H0181086 U JPH0181086 U JP H0181086U
- Authority
- JP
- Japan
- Prior art keywords
- resonant circuit
- parallel resonant
- color signal
- circuit
- capacitor
- 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
- 239000003990 capacitor Substances 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims description 2
- 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図は本考案を実施した信号分離回路の回路
図であり、第２図、第３図及び第４図はその説明
図である。第５図は従来例の回路図である。
１０……映像検波回路、１１……第１線路、１
２……映像増幅器、１３……ＬＣ並列共振回路、
１４……第２線路、１５……色信号増幅器、Ｒ…
…抵抗、Ｃ１……コンデンサ。
FIG. 1 is a circuit diagram of a signal separation circuit embodying the present invention, and FIGS. 2, 3, and 4 are explanatory diagrams thereof. FIG. 5 is a circuit diagram of a conventional example. 10... Video detection circuit, 11... First line, 1
2...Video amplifier, 13...LC parallel resonant circuit,
14...Second line, 15...Color signal amplifier, R...
...Resistance, C 1 ...Capacitor.
Claims (1)
へ導く第１手段と、前記抵抗にコンデンサを介し
て接続されると共に色信号を抽出するＬＣ並列共
振回路と、該ＬＣ並列共振回路の出力を色信号増
幅器へ導く第２手段とを備え、前記コンデンサと
ＬＣ並列共振回路の合成回路は前記映像増幅器か
らみて色信号に対しトラツプ用の直列共振回路と
なる信号分離回路。 a first means for guiding the output of the video detection circuit to the video amplifier through a resistor; an LC parallel resonant circuit connected to the resistor via a capacitor and extracting a color signal; and a color signal amplifier for the output of the LC parallel resonant circuit. and second means for guiding the chrominance signal to the LC parallel resonant circuit, wherein the combination circuit of the capacitor and the LC parallel resonant circuit becomes a series resonant circuit for trapping the color signal when viewed from the video amplifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987176081U JPH0181086U (en) | 1987-11-18 | 1987-11-18 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987176081U JPH0181086U (en) | 1987-11-18 | 1987-11-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0181086U true JPH0181086U (en) | 1989-05-31 |
Family
ID=31467844
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987176081U Pending JPH0181086U (en) | 1987-11-18 | 1987-11-18 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0181086U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5367313A (en) * | 1976-11-29 | 1978-06-15 | Hitachi Ltd | Chroma/luminance signals isolating filter |
-
1987
- 1987-11-18 JP JP1987176081U patent/JPH0181086U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5367313A (en) * | 1976-11-29 | 1978-06-15 | Hitachi Ltd | Chroma/luminance signals isolating filter |
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