JPS6364138U - - Google Patents
Info
- Publication number
- JPS6364138U JPS6364138U JP15792386U JP15792386U JPS6364138U JP S6364138 U JPS6364138 U JP S6364138U JP 15792386 U JP15792386 U JP 15792386U JP 15792386 U JP15792386 U JP 15792386U JP S6364138 U JPS6364138 U JP S6364138U
- Authority
- JP
- Japan
- Prior art keywords
- band
- bandpass filter
- filter
- pass
- input signal
- 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
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Channel Selection Circuits, Automatic Tuning Circuits (AREA)
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
Description
第１図は本考案の一実施例を示す回路図、第２
図は従来の回路図である。
１０，１２……バンドパスフイルタ、Ｓ……バ
ンドスイツチ、Ｄ１０，Ｄ１１……ダイオード。
Figure 1 is a circuit diagram showing one embodiment of the present invention;
The figure is a conventional circuit diagram. 10, 12...band pass filter, S...band switch, D10 , D11 ...diode.
Claims (1)
ドパスフイルタと、この第１のバンドパスフイル
タとは通過帯域の異なる第２のバンドパスフイル
タと、この第２のバンドパスフイルタおよび前記
第１のバンドパスフイルタ間に挿入し、第２のバ
ンドパスフイルタを前記アンテナ入力信号経路に
並列接続するスイツチング手段とを備え、前記ス
イツチング手段は第１の受信バンドを受信するの
とき、前記第１のバンドパスフイルタを使用し、
第２の受信バンドを受信するのとき前記第２のバ
ンドパスフイルタを使用するように切換えること
を特徴とするバンドパスフイルタ回路。 a first bandpass filter inserted in the antenna input signal path; a second bandpass filter having a different passband from the first bandpass filter; switching means inserted between band-pass filters to connect a second band-pass filter in parallel to the antenna input signal path, the switching means being configured to switch between the first band and the second band-pass filter when receiving the first reception band; using a pass filter,
A bandpass filter circuit characterized in that the second bandpass filter is switched to be used when receiving a second reception band.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15792386U JPS6364138U (en) | 1986-10-15 | 1986-10-15 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15792386U JPS6364138U (en) | 1986-10-15 | 1986-10-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6364138U true JPS6364138U (en) | 1988-04-27 |
Family
ID=31080923
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15792386U Pending JPS6364138U (en) | 1986-10-15 | 1986-10-15 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6364138U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1628398A1 (en) | 2004-08-20 | 2006-02-22 | Alps Electric Co., Ltd. | Frequency band switching circuit with reduced signal loss |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6074731A (en) * | 1983-09-30 | 1985-04-27 | Hitachi Ltd | Double superheterodyne tuner |
-
1986
- 1986-10-15 JP JP15792386U patent/JPS6364138U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6074731A (en) * | 1983-09-30 | 1985-04-27 | Hitachi Ltd | Double superheterodyne tuner |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1628398A1 (en) | 2004-08-20 | 2006-02-22 | Alps Electric Co., Ltd. | Frequency band switching circuit with reduced signal loss |