JPS5854149U - FM stereo tuner - Google Patents
FM stereo tunerInfo
- Publication number
- JPS5854149U JPS5854149U JP14790381U JP14790381U JPS5854149U JP S5854149 U JPS5854149 U JP S5854149U JP 14790381 U JP14790381 U JP 14790381U JP 14790381 U JP14790381 U JP 14790381U JP S5854149 U JPS5854149 U JP S5854149U
- Authority
- JP
- Japan
- Prior art keywords
- switch
- pass filter
- low
- stereo tuner
- operates
- 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
Landscapes
- 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図は本考案の一実施例のブロック図。第２図は第１
図におけるマルチプレックス復調回路の一例を示すブロ
ック図。第３図は第２図に示したマルチプレックス復調
回路の作用の説明に供する波形図。
ＳＤ・・・・・・マルチプレックス復調回路、Ｆｌおよ
びＦ２・・・・・印−パスフィルタ、ｓｗト、、ｓｗ、
２゜ＳＷ２．、．１および５ｗ２− ’、・・・・・・
スイッチ、３・・・・・・２相パルス発振器、４． ６
． ９および１７・・・・・・スイッチ回路、１４・・
・・・・反転回路、１５および１８・・・・・・加算器
、１６・・・・・・積分器、Ｕ・・・・・・サンプルホ
ールド回路からなる階段波発生回路、■およびＷ・・・
・・・サンプルホールド回路からなる遅延回路。FIG. 1 is a block diagram of an embodiment of the present invention. Figure 2 is the first
FIG. 2 is a block diagram showing an example of the multiplex demodulation circuit shown in the figure. FIG. 3 is a waveform diagram for explaining the operation of the multiplex demodulation circuit shown in FIG. 2. SD...Multiplex demodulation circuit, Fl and F2...mark-pass filter, sw, sw,
2゜SW2. ,．． 1 and 5w2-',...
Switch, 3...2-phase pulse oscillator, 4. 6
．． 9 and 17...Switch circuit, 14...
... Inversion circuit, 15 and 18 ... Adder, 16 ... Integrator, U ... Staircase wave generation circuit consisting of sample and hold circuit, ■ and W.・・・
...Delay circuit consisting of a sample and hold circuit.
Claims (1)
ス復調回路に縦続接続されるローパスフィルタと、該ロ
ーパスフィルタの前記マルチプレックス−復調回路への
接続または非接続を選択的に切替える切替手段とを備え
てなるこ−とを特徴とするＦＭステレオチューナ。 （２）切替手段はローパスフィルタの出力をオン・オフ
する第１のスイッチと、前記ローパスフィルタの入力端
子と前記第１のスイッチの出力端子との間に接続され、
前記第１のスイッチと連動して作動し、かつ前“記第１
のそイツチの動作゛ の逆動作をする第２のスイッチと
からなることを特徴とする実用新案登録請求の範囲第１
項記載のＦＭステレオチューナ。[Claims for Utility Model Registration] (In an 11FM stereo tuner, a low-pass filter is cascade-connected to a multiplex demodulation circuit, and a switching means for selectively connecting or disconnecting the low-pass filter to the multiplex-demodulation circuit. (2) The switching means includes a first switch that turns on and off the output of the low-pass filter, and a switch between the input terminal of the low-pass filter and the first switch. connected between the output terminal and
operates in conjunction with the first switch, and operates in conjunction with the first switch.
and a second switch that operates in the opposite direction to the operation of the switch.
FM stereo tuner as described in section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14790381U JPS5854149U (en) | 1981-10-05 | 1981-10-05 | FM stereo tuner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14790381U JPS5854149U (en) | 1981-10-05 | 1981-10-05 | FM stereo tuner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5854149U true JPS5854149U (en) | 1983-04-13 |
| JPS6244605Y2 JPS6244605Y2 (en) | 1987-11-26 |
Family
ID=29940738
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14790381U Granted JPS5854149U (en) | 1981-10-05 | 1981-10-05 | FM stereo tuner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5854149U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5513507A (en) * | 1978-07-14 | 1980-01-30 | Pioneer Electronic Corp | Noise attenuation circuit of fm receiver |
| JPS56123655U (en) * | 1980-02-21 | 1981-09-19 |
-
1981
- 1981-10-05 JP JP14790381U patent/JPS5854149U/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5513507A (en) * | 1978-07-14 | 1980-01-30 | Pioneer Electronic Corp | Noise attenuation circuit of fm receiver |
| JPS56123655U (en) * | 1980-02-21 | 1981-09-19 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6244605Y2 (en) | 1987-11-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS5854149U (en) | FM stereo tuner | |
| JPS60145745U (en) | D/A conversion circuit | |
| JPS588213U (en) | High frequency switching circuit | |
| JPS59189330U (en) | operational amplifier device | |
| JPS58189615U (en) | FM demodulation circuit | |
| JPS6040132U (en) | Phase switching circuit | |
| JPS5984975U (en) | Noise reduction circuit for reproduced FM luminance signal | |
| JPS6065681U (en) | frequency discrimination circuit | |
| JPS6064634U (en) | High frequency switching circuit | |
| JPS6133524U (en) | filter device | |
| JPS6025281U (en) | mixing circuit | |
| JPS58172247U (en) | Stereo/monaural switching circuit of stereo receiver | |
| JPS5986728U (en) | phase shifter | |
| JPS5869322U (en) | amplifier circuit | |
| JPS58185000U (en) | stereo wide circuit | |
| JPS58123622U (en) | delay line | |
| JPS60184375U (en) | Video signal correction circuit | |
| JPS6082845U (en) | Digital temperature compensated crystal oscillator noise reduction circuit | |
| JPS58189619U (en) | level shift circuit | |
| JPS60127030U (en) | digital filter system | |
| JPS60167422U (en) | Noise removal circuit | |
| JPS5914435U (en) | Radio receiver intermediate frequency bandwidth switching circuit | |
| JPH03110663U (en) | ||
| JPS58147312U (en) | amplifier circuit | |
| JPS62147929U (en) |