JPS6258930U - - Google Patents
Info
- Publication number
- JPS6258930U JPS6258930U JP14820285U JP14820285U JPS6258930U JP S6258930 U JPS6258930 U JP S6258930U JP 14820285 U JP14820285 U JP 14820285U JP 14820285 U JP14820285 U JP 14820285U JP S6258930 U JPS6258930 U JP S6258930U
- Authority
- JP
- Japan
- Prior art keywords
- frequency
- converting
- carrier signal
- shf
- frequency conversion
- 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 4
- 230000002452 interceptive effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 7
- 230000010355 oscillation Effects 0.000 description 2
Landscapes
- Noise Elimination (AREA)
Description
第1図はこの考案の一実施例の構成を示す回路
図、第2図、第3図はそれぞれ第1図に示す可変
周波数発振回路の異なる具体的構成例を示す回路
図、第4図は第1図に示すトラツプ回路の周波数
特性の一例を示す特性図、第5図はこの考案の他
の実施例の構成を示す回路図、第6図はこの考案
のさらに他の実施例の構成を示す回路図、第7図
及び第8図は従来の問題を説明するための図であ
る。
22,25…周波数変換回路、23…可変周波
数発振回路、24…トラツプ回路、26…バンド
パスフイルタ。
FIG. 1 is a circuit diagram showing the configuration of one embodiment of this invention, FIGS. 2 and 3 are circuit diagrams showing different specific configuration examples of the variable frequency oscillation circuit shown in FIG. 1, and FIG. Figure 1 is a characteristic diagram showing an example of the frequency characteristics of the trap circuit, Figure 5 is a circuit diagram showing the configuration of another embodiment of this invention, and Figure 6 is a diagram showing the configuration of yet another embodiment of this invention. The circuit diagrams shown in FIGS. 7 and 8 are diagrams for explaining the conventional problems. 22, 25... Frequency conversion circuit, 23... Variable frequency oscillation circuit, 24... Trap circuit, 26... Bandpass filter.
Claims (1)
変換する第1の周波数変換手段と、 この第1の周波数変換手段の出力から妨害信号
を除去するフイルタ手段と、 このフイルタ手段の出力を周波数変換する第2
の周波数変換手段と、 上記第1、第2の周波数変換手段で共通に使わ
れる周波数変換用キヤリア信号を発生するもので
あつて、かつこのキヤリア信号の周波数を変える
ことができるキヤリア信号発生手段とを具備した
ことを特徴とするSHF放送受信機の妨害除去回
路。[Claims for Utility Model Registration] A first frequency conversion means for converting the frequency of an SHF broadcast signal converted into an intermediate frequency; a filter means for removing an interfering signal from the output of the first frequency conversion means; a second for frequency converting the output of the means;
and a carrier signal generating means that generates a carrier signal for frequency conversion that is commonly used by the first and second frequency converting means and is capable of changing the frequency of this carrier signal. 1. An interference removal circuit for an SHF broadcast receiver, characterized by comprising:
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14820285U JPS6258930U (en) | 1985-09-30 | 1985-09-30 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14820285U JPS6258930U (en) | 1985-09-30 | 1985-09-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6258930U true JPS6258930U (en) | 1987-04-11 |
Family
ID=31062252
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14820285U Pending JPS6258930U (en) | 1985-09-30 | 1985-09-30 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6258930U (en) |
-
1985
- 1985-09-30 JP JP14820285U patent/JPS6258930U/ja active Pending
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