JPS61126681U - - Google Patents
Info
- Publication number
- JPS61126681U JPS61126681U JP858285U JP858285U JPS61126681U JP S61126681 U JPS61126681 U JP S61126681U JP 858285 U JP858285 U JP 858285U JP 858285 U JP858285 U JP 858285U JP S61126681 U JPS61126681 U JP S61126681U
- Authority
- JP
- Japan
- Prior art keywords
- output
- circuit
- converter
- bandpass filter
- conversion circuit
- 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
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 239000000284 extract Substances 0.000 claims 1
- 230000010355 oscillation Effects 0.000 claims 1
- 230000005236 sound signal Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Television Signal Processing For Recording (AREA)
- Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
Description
第１図は本考案の一実施例の回路ブロツク図、
第２図は従来例の回路ブロツク図である。
６……ＦＭ変調回路、２０……同調回路、３１
，３２……切換スイツチ、３３……周波数変換回
路、３４……バンドパスフイルタ。
FIG. 1 is a circuit block diagram of an embodiment of the present invention.
FIG. 2 is a circuit block diagram of a conventional example. 6...FM modulation circuit, 20...tuning circuit, 31
, 32... Selector switch, 33... Frequency conversion circuit, 34... Band pass filter.
Claims (1)
ジヨン方式に対応する装置出力をＲＦ信号に変換
するＲＦコンバータにおいて、音声信号のＦＭ変
調回路出力を前記装置内の発振回路出力と混合す
る周波数変換回路と該周波数変換回路出力より所
定周波数成分を取り出すバンドパスフイルタと、
該バンドパスフイルタ出力と前記ＦＭ変調回路出
力より１方を選択する選択手段を備えることを特
徴とするＲＦコンバータ。 In an RF converter that converts the output of a device corresponding to television systems having different center frequencies of audio carrier signals into an RF signal, a frequency conversion circuit that mixes the output of an FM modulation circuit of the audio signal with the output of an oscillation circuit in the device; a bandpass filter that extracts a predetermined frequency component from the conversion circuit output;
An RF converter comprising selection means for selecting one of the bandpass filter output and the FM modulation circuit output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP858285U JPS61126681U (en) | 1985-01-24 | 1985-01-24 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP858285U JPS61126681U (en) | 1985-01-24 | 1985-01-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61126681U true JPS61126681U (en) | 1986-08-08 |
Family
ID=30488003
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP858285U Pending JPS61126681U (en) | 1985-01-24 | 1985-01-24 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61126681U (en) |
-
1985
- 1985-01-24 JP JP858285U patent/JPS61126681U/ja active Pending
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