JPS6224534U - - Google Patents
Info
- Publication number
- JPS6224534U JPS6224534U JP11560785U JP11560785U JPS6224534U JP S6224534 U JPS6224534 U JP S6224534U JP 11560785 U JP11560785 U JP 11560785U JP 11560785 U JP11560785 U JP 11560785U JP S6224534 U JPS6224534 U JP S6224534U
- Authority
- JP
- Japan
- Prior art keywords
- band
- frequency control
- control circuit
- automatic frequency
- level
- 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
- 230000010355 oscillation Effects 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims 2
Landscapes
- Channel Selection Circuits, Automatic Tuning Circuits (AREA)
- Superheterodyne Receivers (AREA)
Description
図は本考案の一実施例を示すものである。
２……局部発振回路の一部を構成する共振回路
、１９，２０……バンド切換スイツチ、２１……
ＡＦＣループ。
The figure shows an embodiment of the present invention. 2 ... Resonance circuit forming part of the local oscillation circuit, 19, 20... Band selection switch, 21...
AFC loop.
Claims (1)
信し得る受信装置であつて、バンド切換手段と、
このバンド切換手段の操作に基づき各バンドに適
応した局部発振周波数を出力するべく制御される
局部発振回路と、この局部発振回路の発振周波数
を検波出力に基づき自動的に制御する自動周波数
制御回路と、この自動周波数制御回路へ印加され
る前記検波出力のレベルを可変するレベル可変手
段とを備え、前記バンド切換手段の操作に基づき
前記レベル可変手段を制御することにより各バン
ドに対応して前記自動周波数制御回路の自動周波
数制御動作帯域幅を可変するようになしたことを
特徴とする受信装置。 A receiving device capable of receiving audio of FM band broadcasting and TV band broadcasting, comprising a band switching means;
A local oscillation circuit that is controlled to output a local oscillation frequency suitable for each band based on the operation of the band switching means, and an automatic frequency control circuit that automatically controls the oscillation frequency of this local oscillation circuit based on the detection output. , a level variable means for varying the level of the detection output applied to the automatic frequency control circuit, and the automatic frequency control circuit is configured to control the level variable means based on the operation of the band switching means to adjust the level of the automatic frequency control circuit according to each band. A receiving device characterized in that an automatic frequency control operation bandwidth of a frequency control circuit is made variable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11560785U JPS6224534U (en) | 1985-07-26 | 1985-07-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11560785U JPS6224534U (en) | 1985-07-26 | 1985-07-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6224534U true JPS6224534U (en) | 1987-02-14 |
Family
ID=30999417
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11560785U Pending JPS6224534U (en) | 1985-07-26 | 1985-07-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6224534U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02130174A (en) * | 1988-11-11 | 1990-05-18 | Ricoh Co Ltd | Recording apparatus |
-
1985
- 1985-07-26 JP JP11560785U patent/JPS6224534U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02130174A (en) * | 1988-11-11 | 1990-05-18 | Ricoh Co Ltd | Recording apparatus |