JPS61162186U - - Google Patents
Info
- Publication number
- JPS61162186U JPS61162186U JP1985045074U JP4507485U JPS61162186U JP S61162186 U JPS61162186 U JP S61162186U JP 1985045074 U JP1985045074 U JP 1985045074U JP 4507485 U JP4507485 U JP 4507485U JP S61162186 U JPS61162186 U JP S61162186U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- trap
- broadcasts
- video
- turned
- 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
- 239000003990 capacitor Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
Description
第１図は本考案の一実施例を示す回路図、第２
図は第１図の回路の動作特性を示すグラフ、第３
図は従来の回路の特性を示すグラフ、及び第４図
は第３図の特性を得る回路例を示す回路図である
。
３……トラツプ回路、Ｄ……スイツチングダイ
オード、Ｃ……コンデンサ、Ｃ１〜Ｃ３……コン
デンサ、Ｌ……インダクタンス、Ｒ１……抵抗。
Figure 1 is a circuit diagram showing one embodiment of the present invention;
The figure is a graph showing the operating characteristics of the circuit in Figure 1,
The figure is a graph showing the characteristics of a conventional circuit, and FIG. 4 is a circuit diagram showing an example of a circuit that obtains the characteristics shown in FIG. 3...Trap circuit, D...Switching diode, C...Capacitor, C1 to C3 ... Capacitor, L...Inductance, R1 ...Resistance.
Claims (1)
ることのできるテレビジヨン受像機の映像ＩＦ回
路であつて、通常のＴＶ放送受信時に音声トラツ
プとして働くトラツプ回路と、ＣＡＴＶ放送受信
時にオンされるスイツチング手段と、該スイツチ
ング手段のオンにより前記トラツプ回路に接続さ
れるリアクタンス素子とを備え、前記トラツプ回
路へのリアクタンス素子の接続により隣接チヤン
ネルの隣接トラツプとして働く回路を形成するこ
とを特徴とするテレビジヨン受像機の映像ＩＦ回
路。 This is a video IF circuit for a television receiver that can receive both normal TV broadcasts and CATV broadcasts, and includes a trap circuit that functions as an audio trap when receiving normal TV broadcasts, and a switching means that is turned on when receiving CATV broadcasts. and a reactance element connected to the trap circuit when the switching means is turned on, and the connection of the reactance element to the trap circuit forms a circuit that acts as an adjacent trap for an adjacent channel. The machine's video IF circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985045074U JPH0523030Y2 (en) | 1985-03-29 | 1985-03-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985045074U JPH0523030Y2 (en) | 1985-03-29 | 1985-03-29 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61162186U true JPS61162186U (en) | 1986-10-07 |
| JPH0523030Y2 JPH0523030Y2 (en) | 1993-06-14 |
Family
ID=30558244
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985045074U Expired - Lifetime JPH0523030Y2 (en) | 1985-03-29 | 1985-03-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0523030Y2 (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5025449U (en) * | 1973-06-28 | 1975-03-24 | ||
| JPS57163849U (en) * | 1981-04-07 | 1982-10-15 | ||
| JPS59149774U (en) * | 1983-03-24 | 1984-10-06 | 日本電気ホームエレクトロニクス株式会社 | RF modulator |
-
1985
- 1985-03-29 JP JP1985045074U patent/JPH0523030Y2/ja not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5025449U (en) * | 1973-06-28 | 1975-03-24 | ||
| JPS57163849U (en) * | 1981-04-07 | 1982-10-15 | ||
| JPS59149774U (en) * | 1983-03-24 | 1984-10-06 | 日本電気ホームエレクトロニクス株式会社 | RF modulator |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0523030Y2 (en) | 1993-06-14 |
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