JPS5834445U - noise squelch circuit - Google Patents
noise squelch circuitInfo
- Publication number
- JPS5834445U JPS5834445U JP12524381U JP12524381U JPS5834445U JP S5834445 U JPS5834445 U JP S5834445U JP 12524381 U JP12524381 U JP 12524381U JP 12524381 U JP12524381 U JP 12524381U JP S5834445 U JPS5834445 U JP S5834445U
- Authority
- JP
- Japan
- Prior art keywords
- squelch circuit
- noise squelch
- noise
- bandpass filter
- 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
Landscapes
- Noise Elimination (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図は従来のノイズスケルチであり、第２図は本考案
の一実施例である。
１：前置増幅器、２：スケルチスイッチ、３：主増幅器
、４：スピーカ、５：帯域通過フィルタ、６：増幅器、
７：利得制御回路、８：整流回路、９ニスケル′チ制御
ボリウム、１０：比較回路、１１：基準電圧。FIG. 1 shows a conventional noise squelch, and FIG. 2 shows an embodiment of the present invention. 1: Preamplifier, 2: Squelch switch, 3: Main amplifier, 4: Speaker, 5: Bandpass filter, 6: Amplifier,
7: gain control circuit, 8: rectifier circuit, 9 Niskel'ch control volume, 10: comparison circuit, 11: reference voltage.
Claims (1)
域通過フィルタで選択されたノイズ電圧と基準電圧左を
比較回路で比較し、この出力信号を利得制御回路に導き
、帯域通過フィルタに続く増幅器の利得を調整すること
を特徴とするノイズスケルチ回路。In the noise squelch circuit used in FM radios, a comparison circuit compares the noise voltage selected by the bandpass filter with the reference voltage left, and this output signal is led to the gain control circuit, which controls the gain of the amplifier following the bandpass filter. A noise squelch circuit characterized by adjusting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12524381U JPS5834445U (en) | 1981-08-26 | 1981-08-26 | noise squelch circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12524381U JPS5834445U (en) | 1981-08-26 | 1981-08-26 | noise squelch circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5834445U true JPS5834445U (en) | 1983-03-05 |
Family
ID=29919088
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12524381U Pending JPS5834445U (en) | 1981-08-26 | 1981-08-26 | noise squelch circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5834445U (en) |
-
1981
- 1981-08-26 JP JP12524381U patent/JPS5834445U/en active Pending
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