JPS62155532U - - Google Patents
Info
- Publication number
- JPS62155532U JPS62155532U JP4457486U JP4457486U JPS62155532U JP S62155532 U JPS62155532 U JP S62155532U JP 4457486 U JP4457486 U JP 4457486U JP 4457486 U JP4457486 U JP 4457486U JP S62155532 U JPS62155532 U JP S62155532U
- Authority
- JP
- Japan
- Prior art keywords
- signal
- cut control
- level
- intermediate frequency
- control section
- 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
- 238000001514 detection method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Description
第１図は、本考案のＦＭラジオ受信機の一実施
例のブロツク回路図であり、第２図は、第１図の
動作を説明する図であり、第３図は、従来のＦＭ
ラジオ受信機の一例のブロツク回路図である。
２：ＩＦ増幅器、３：ＦＭ検波器、４：ＦＭ復
調器、４ａ：ハイカツトコントロール部、７：レ
ベル検波器、１０：整流平滑器。
FIG. 1 is a block circuit diagram of an embodiment of the FM radio receiver of the present invention, FIG. 2 is a diagram explaining the operation of FIG. 1, and FIG.
1 is a block circuit diagram of an example of a radio receiver; FIG. 2: IF amplifier, 3: FM detector, 4: FM demodulator, 4a: high cut control section, 7: level detector, 10: rectifier smoother.
Claims (1)
ＦＭ受信機において、中間周波数信号をレベル検
波器で検波して受信信号レベルに応じた第１の信
号とし、この第１の信号により前記ハイカツトコ
ントロール部を作用させ、前記中間周波数信号が
与えられるＦＭ検波器から出力されるＦＭ検波出
力を整流平滑器で整流して受信信号の変調度に応
じた第２の信号とし、この第２の信号が所定の値
より高いときに前記第１の信号による前記ハイカ
ツトコントロール部の作用を禁止させるように構
成したことを特徴とするＦＭラジオ受信機。 In an FM receiver including a high-cut control section in an FM demodulator, an intermediate frequency signal is detected by a level detector to generate a first signal corresponding to the received signal level, and this first signal controls the high-cut control section. The FM detection output output from the FM detector to which the intermediate frequency signal is applied is rectified by a rectifier and smoother to produce a second signal corresponding to the degree of modulation of the received signal, and this second signal has a predetermined level. An FM radio receiver, characterized in that the FM radio receiver is configured to prohibit the operation of the high-cut control unit by the first signal when the signal is higher than the first signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4457486U JPH0328610Y2 (en) | 1986-03-25 | 1986-03-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4457486U JPH0328610Y2 (en) | 1986-03-25 | 1986-03-25 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62155532U true JPS62155532U (en) | 1987-10-02 |
| JPH0328610Y2 JPH0328610Y2 (en) | 1991-06-19 |
Family
ID=30862515
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4457486U Expired JPH0328610Y2 (en) | 1986-03-25 | 1986-03-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0328610Y2 (en) |
-
1986
- 1986-03-25 JP JP4457486U patent/JPH0328610Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0328610Y2 (en) | 1991-06-19 |
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