JPS58114626U - electronic tuning tuner - Google Patents
electronic tuning tunerInfo
- Publication number
- JPS58114626U JPS58114626U JP941882U JP941882U JPS58114626U JP S58114626 U JPS58114626 U JP S58114626U JP 941882 U JP941882 U JP 941882U JP 941882 U JP941882 U JP 941882U JP S58114626 U JPS58114626 U JP S58114626U
- Authority
- JP
- Japan
- Prior art keywords
- electronic tuning
- tuner
- tuning tuner
- switching means
- trap circuit
- 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
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は従来例の構成を一部ブロックにて示す回路図、
第２図は各部における信号の波形を示す波形図、第３図
は本考案の一実施例を一部ブロツ ゛りにて示す回路図
、第４図は出力端の波形を示す波形図である。
１・・・・・・ＵＨＦ入力端、２，１０・・・・・・入
力回路、３．１１・・・・・・高周波（ＲＦ）増幅回路
、４，１２・・・ −−−・・・高周波（ＲＦ ）同調
回路、５・・・・・・混合器、６゜１３・・・・・・局
部発振回路、７・・・・・・中間周波（ＩＦ）同調回路
、８・・・・・・混合増幅回路、２１．２４・・・・・
・トラ 、ンジスタ、３０・・・・・・出力同調回
路、３１・・・・・・出力 一端、４１・・・・
・・トラップ回路、４２・・・・・・コンデンサ、４３
・・・・・・コイル、４４・・・・・・ダイオード、４
５・・・・・・抵抗。Figure 1 is a circuit diagram showing the configuration of a conventional example in partial blocks;
Fig. 2 is a waveform diagram showing signal waveforms at each part, Fig. 3 is a circuit diagram showing an embodiment of the present invention with partial blocks, and Fig. 4 is a waveform diagram showing waveforms at the output end. . 1...UHF input end, 2,10...Input circuit, 3.11...High frequency (RF) amplifier circuit, 4,12...------・High frequency (RF) tuning circuit, 5...Mixer, 6゜13...Local oscillation circuit, 7...Intermediate frequency (IF) tuning circuit, 8... ...Mixing amplifier circuit, 21.24...
・Trigger, transistor, 30...output tuning circuit, 31...output one end, 41...
... Trap circuit, 42 ... Capacitor, 43
... Coil, 44 ... Diode, 4
5...Resistance.
Claims (1)
て、印加される電圧に応じて導通及び非導通となるスイ
ッチジグ手段と、容量及びインダクタンス成分を含み、
前記スイッチング手段により制御されるトラップ回路と
を設け、このトラップ回路を前記異る周波数帯の受信時
に応じて切換えるようにしたことを特徴とする電子同調
チューナ。An electronic tuning tuner that receives different broadcast frequency bands includes a switching means that becomes conductive and non-conductive depending on the applied voltage, and capacitance and inductance components,
An electronically tuned tuner comprising: a trap circuit controlled by the switching means; and the trap circuit is switched in accordance with reception of the different frequency band.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP941882U JPS58114626U (en) | 1982-01-28 | 1982-01-28 | electronic tuning tuner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP941882U JPS58114626U (en) | 1982-01-28 | 1982-01-28 | electronic tuning tuner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58114626U true JPS58114626U (en) | 1983-08-05 |
Family
ID=30022055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP941882U Pending JPS58114626U (en) | 1982-01-28 | 1982-01-28 | electronic tuning tuner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58114626U (en) |
-
1982
- 1982-01-28 JP JP941882U patent/JPS58114626U/en active Pending
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