JPS6057257U - FM/AM stereo tuner - Google Patents
FM/AM stereo tunerInfo
- Publication number
- JPS6057257U JPS6057257U JP15024183U JP15024183U JPS6057257U JP S6057257 U JPS6057257 U JP S6057257U JP 15024183 U JP15024183 U JP 15024183U JP 15024183 U JP15024183 U JP 15024183U JP S6057257 U JPS6057257 U JP S6057257U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- emphasis
- signal
- multiplex
- stereo tuner
- 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図及び第２図は従来のＦＭ／ＡＭステレオチューナ
の構成例を示すブロック図、第３図及び第４図は本考案
のＦＭ／ＡＭステレオチューナの各員なる実施例のブロ
ック図である。
１・・・中間周波信号の入力端子、２・・・中間周波増
幅段、３・・・ＦＭ復調回路、４・・・ＦＭマルチプレ
ックス回路、５，６・・・ディエンファシス回Ｌ７゜８
．１６・・・切換スイッチ、９・・・ＡＭ復調回路、１
０．１１・・・出力端子、１２・・・トランジスタ、１
３．１４・・・コンデンサ、１５，２１，２２・・・抵
抗。1 and 2 are block diagrams showing an example of the configuration of a conventional FM/AM stereo tuner, and FIGS. 3 and 4 are block diagrams of respective embodiments of the FM/AM stereo tuner of the present invention. . 1... Input terminal for intermediate frequency signal, 2... Intermediate frequency amplification stage, 3... FM demodulation circuit, 4... FM multiplex circuit, 5, 6... De-emphasis circuit L7゜8
．． 16... Selector switch, 9... AM demodulation circuit, 1
0.11...Output terminal, 12...Transistor, 1
3.14... Capacitor, 15, 21, 22... Resistor.
Claims (1)
しても使用されるように構成されている如きＦＭ／ＡＭ
ステレオチューナにおいて、ＦＭマルチプレックス回路
に後続されている２系統のディエンファシス回路のそれ
ぞれのものの回路構成に用いられている回路素子の内で
、各ディエンファシス回路がそれぞれディエンファシス
回路としての動作を行なうようになされる際に、それぞ
れのディエンファシス回路毎に信号の伝送路を個別に橋
絡するように設けられるべきコンデンサが、ＦＭマルチ
プレックス回路に対してＦＭ復調信号が供給されている
状態においては、それぞれのディエンファシス回路毎に
信号の伝送路が個別に橋絡された状態になされるように
、また、ＦＭマルチプレックス回路に対してＡＭ復調信
号が供給されている状態においては、それぞれのディエ
ンファシス回路毎に設けられている前記のコンデンサが
信号の伝送路を橋絡することがないように回路を切換え
る回路切換手段を設けてなるＦＭ／ＡＭステレオチュー
ナ。FM/AM in which the FM multiplex circuit is configured to also be used as a signal path for the AM demodulated signal.
In a stereo tuner, among the circuit elements used in the circuit configuration of each of the two systems of de-emphasis circuits that follow the FM multiplex circuit, each de-emphasis circuit operates as a de-emphasis circuit. When the FM multiplex circuit is supplied with the FM demodulated signal, the capacitor that should be installed to bridge the signal transmission path for each de-emphasis circuit is , so that the signal transmission path for each de-emphasis circuit is individually bridged, and when the AM demodulation signal is supplied to the FM multiplex circuit, each de-emphasis circuit is bridged individually. An FM/AM stereo tuner comprising circuit switching means for switching circuits so that the capacitor provided for each emphasis circuit does not bridge a signal transmission path.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15024183U JPS6057257U (en) | 1983-09-28 | 1983-09-28 | FM/AM stereo tuner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15024183U JPS6057257U (en) | 1983-09-28 | 1983-09-28 | FM/AM stereo tuner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6057257U true JPS6057257U (en) | 1985-04-22 |
Family
ID=30333279
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15024183U Pending JPS6057257U (en) | 1983-09-28 | 1983-09-28 | FM/AM stereo tuner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6057257U (en) |
-
1983
- 1983-09-28 JP JP15024183U patent/JPS6057257U/en active Pending
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