JPS5927643U - FM wide receiver - Google Patents
FM wide receiverInfo
- Publication number
- JPS5927643U JPS5927643U JP12305682U JP12305682U JPS5927643U JP S5927643 U JPS5927643 U JP S5927643U JP 12305682 U JP12305682 U JP 12305682U JP 12305682 U JP12305682 U JP 12305682U JP S5927643 U JPS5927643 U JP S5927643U
- Authority
- JP
- Japan
- Prior art keywords
- bypass circuit
- wide receiver
- resistor
- switching element
- tuning
- 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
Landscapes
- Television Receiver Circuits (AREA)
- Circuits Of Receivers In General (AREA)
- Stereo-Broadcasting Methods (AREA)
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図は従来のＦＭワイド受信機の一例を示す要部回路
図、第２図、第３図は第１図に示すスイッチの一例を示
す側面図および平面図、第４図はこの考案によるＦＭワ
イド受信機の一実施例を示す回路図である。 ゛
１・・・アンプ、２． ４． １６・・・コンデンサ、
３゜８、 ３． ８． ９． １８． １９． ２０・
・・抵抗、５・・・ステレオ復調回路、６，１５・・・
ダイオード、７・・・スイッチ、１７・・・コンパレー
タ。Figure 1 is a circuit diagram of the main parts of an example of a conventional FM wide receiver, Figures 2 and 3 are a side view and plan view of an example of the switch shown in Figure 1, and Figure 4 is a diagram based on this invention. FIG. 1 is a circuit diagram showing an example of an FM wide receiver.゛1... Amplifier, 2. 4. 16... Capacitor,
3゜8, 3. 8. 9. 18. 19. 20・
...Resistor, 5...Stereo demodulation circuit, 6,15...
Diode, 7... switch, 17... comparator.
Claims (1)
、ＦＭ検波信号の通路に設けられた信号減衰量の抵抗と
、この抵抗に対して並列に設けられたダイオードによる
バイパス回路と、テレビ音声放送の受信帯域にチューニ
ングされた時にオンとなるスイッチング素子と、このス
イッチング素子を介して供給される同調信号のレベルが
基準値へを越えた時のみ前記バイパス回路を構成するダ
イオードに正バイアスを加えて導通させることにより、
テレビ音声放送の受信時における局間ノイズレベルの増
加を防止したＦＭワイド受信機。In an FM wide receiver equipped with a tuning indicator drive circuit, there is a resistor for signal attenuation provided in the path of the FM detection signal, a bypass circuit using a diode provided in parallel with this resistor, and a bypass circuit for TV audio broadcasting. A switching element is turned on when tuned to the reception band, and only when the level of the tuning signal supplied through this switching element exceeds a reference value, a positive bias is applied to the diode constituting the bypass circuit to make it conductive. By letting
An FM wide receiver that prevents an increase in the inter-station noise level when receiving TV audio broadcasts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12305682U JPS5927643U (en) | 1982-08-13 | 1982-08-13 | FM wide receiver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12305682U JPS5927643U (en) | 1982-08-13 | 1982-08-13 | FM wide receiver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5927643U true JPS5927643U (en) | 1984-02-21 |
Family
ID=30281042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12305682U Pending JPS5927643U (en) | 1982-08-13 | 1982-08-13 | FM wide receiver |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5927643U (en) |
-
1982
- 1982-08-13 JP JP12305682U patent/JPS5927643U/en active Pending
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