JPS5840956U - FM receiver - Google Patents
FM receiverInfo
- Publication number
- JPS5840956U JPS5840956U JP13609681U JP13609681U JPS5840956U JP S5840956 U JPS5840956 U JP S5840956U JP 13609681 U JP13609681 U JP 13609681U JP 13609681 U JP13609681 U JP 13609681U JP S5840956 U JPS5840956 U JP S5840956U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- detection
- frequency signal
- local oscillation
- intermediate frequency
- 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
- Superheterodyne Receivers (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受信機の構成を示す図、第２図は本
考案のＦＭ受信機の構成を示す図である。
２は局部発振回路、３は混合回路、４は中間周波増幅回
路、５はＦＭ検波回路である。FIG. 1 is a diagram showing the configuration of a conventional FM receiver, and FIG. 2 is a diagram showing the configuration of the FM receiver of the present invention. 2 is a local oscillation circuit, 3 is a mixing circuit, 4 is an intermediate frequency amplification circuit, and 5 is an FM detection circuit.
Claims (1)
３に入力して上記ＦＭ高周波信号を所定の中間周波信号
に周波数変換し、当該中間周波信号を中間周波増幅回路
４によって増幅した後、ＦＭ検波回路５によって検波す
るようにした構成において、上記ＦＭ検波回路５のＦＭ
検波出力を上記局部発振回路２に逆位相でフィードバッ
クして周波数変調負帰還を行ない、かつ、上記局部発振
回路２の周波数変調歪を上記ＦＭ検波回路５の検波歪よ
り小さくしたことを特徴とするＦＭ受信機。The FM high frequency signal and the output signal of the local oscillation circuit 2 are input to a mixing circuit 3, the frequency of the FM high frequency signal is converted into a predetermined intermediate frequency signal, and the intermediate frequency signal is amplified by the intermediate frequency amplification circuit 4. In the configuration in which the detection circuit 5 detects the waves, the FM of the FM detection circuit 5
The detection output is fed back to the local oscillation circuit 2 in an opposite phase to perform frequency modulation negative feedback, and the frequency modulation distortion of the local oscillation circuit 2 is made smaller than the detection distortion of the FM detection circuit 5. FM receiver.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13609681U JPS5840956U (en) | 1981-09-11 | 1981-09-11 | FM receiver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13609681U JPS5840956U (en) | 1981-09-11 | 1981-09-11 | FM receiver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5840956U true JPS5840956U (en) | 1983-03-17 |
Family
ID=29929436
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13609681U Pending JPS5840956U (en) | 1981-09-11 | 1981-09-11 | FM receiver |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5840956U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6172418A (en) * | 1984-09-17 | 1986-04-14 | Alps Electric Co Ltd | Receiver for satellite broadcast |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5545277A (en) * | 1978-09-27 | 1980-03-29 | Aiwa Co Ltd | Automatic tuning circuit for fm tuner |
-
1981
- 1981-09-11 JP JP13609681U patent/JPS5840956U/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5545277A (en) * | 1978-09-27 | 1980-03-29 | Aiwa Co Ltd | Automatic tuning circuit for fm tuner |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6172418A (en) * | 1984-09-17 | 1986-04-14 | Alps Electric Co Ltd | Receiver for satellite broadcast |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS58127741U (en) | Receiving machine | |
| JPS5840956U (en) | FM receiver | |
| JPS58563U (en) | Synchronous detection circuit | |
| JPS5837242U (en) | receiving circuit | |
| JPS5967047U (en) | receiving device | |
| JPS58141642U (en) | AM radio receiver | |
| JPS5882021U (en) | feedback amplifier circuit | |
| JPS5857141U (en) | tuner mixing circuit | |
| JPS5877917U (en) | Frequency characteristic correction circuit | |
| JPS59108355U (en) | Local oscillation signal injection device | |
| JPS61319U (en) | Receiver automatic gain control circuit | |
| JPS58114627U (en) | Receiver tuning correction circuit | |
| JPS5866711U (en) | Detection output switching circuit | |
| JPS58194520U (en) | Gain control circuit | |
| JPS6031679U (en) | signal processor | |
| JPS58182537U (en) | MW/FM electronic tuning receiver | |
| JPS58141643U (en) | AM radio receiver | |
| JPS58155140U (en) | Receiving machine | |
| JPS59195844U (en) | CATV converter | |
| JPS59137687U (en) | Motionary feedback speaker system | |
| JPS6041995U (en) | vibrato circuit | |
| JPS58155148U (en) | AM Chuna | |
| JPS6085430U (en) | fm radio receiver | |
| JPS58164320U (en) | converter | |
| JPS5948112U (en) | amplifier |