JPH0228181U - - Google Patents
Info
- Publication number
- JPH0228181U JPH0228181U JP10650288U JP10650288U JPH0228181U JP H0228181 U JPH0228181 U JP H0228181U JP 10650288 U JP10650288 U JP 10650288U JP 10650288 U JP10650288 U JP 10650288U JP H0228181 U JPH0228181 U JP H0228181U
- Authority
- JP
- Japan
- Prior art keywords
- terminal
- output
- supplying
- power amplifier
- synthesizer
- 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
- 230000005236 sound signal Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Transmitters (AREA)
Description
第１図はこの考案の一実施例を示す構成説明図
、第２図は第１図の装置の動作例を説明するため
の一部を取出して示す図、第３図は第１図の切換
器の他の例を示す図、第４図は従来の送信装置の
構成を示す構成説明図、第５図は第４図の電力増
幅器の内部を示す図である。
１１，２１……励振器、１２Ａ，１２Ｂ……映
像用電力増幅器、１３……４端子合成器、１４Ａ
，１４Ｂ……ノツチフイルタ、１５，２３……第
１、第２の切換器、２２……音声用電力増幅器、
２４……ＣＩＮダイプレクサ。
FIG. 1 is a configuration explanatory diagram showing one embodiment of this invention, FIG. 2 is a diagram showing a part of the device shown in FIG. FIG. 4 is a configuration explanatory diagram showing the configuration of a conventional transmitting device, and FIG. 5 is a diagram showing the inside of the power amplifier shown in FIG. 4. 11, 21...Exciter, 12A, 12B...Video power amplifier, 13...4-terminal combiner, 14A
, 14B... notch filter, 15, 23... first and second switch, 22... audio power amplifier,
24...CIN diplexer.
Claims (1)
れぞれ増幅する第１、第２の映像用電力増幅器と
、 前記各映像用電力増幅器の出力部にそれぞれ接
続された高周波音声信号反射用のノツチフイルタ
と、 前記映像用電力増幅器の出力が第１、第２の端
子に供給される４端子合成器と、 前記４端子合成器の第３の端子の出力をＣＩＮ
ダイプレクサの第１の入力端子に供給する状態ま
たは該第３の端子の出力をアンテナの給電部に供
給する状態に切替わることができる第１の切換器
と、 前記４端子合成器の第４の端子に対して、音声
用電力増幅器の出力を供給する状態または該音声
用電力増幅器の出力を前記ＣＩＮダイプレクサの
第２の入力端子に供給する状態に切替わることが
できる第２の切換器とを具備し、前記ＣＩＮダイ
プレクサ故障時に前記音声用電力増幅器の出力を
前記４端子合成器に導き、この合成器の第３の端
子の出力を前記アンテナに直接導くように構成さ
れたことを特徴とするテレビジヨン送信機。[Claims for Utility Model Registration] First and second video power amplifiers that divide a video signal into two and amplify each divided signal, respectively; a notch filter for reflecting high-frequency audio signals; a four-terminal synthesizer whose first and second terminals are supplied with the output of the video power amplifier; and an output from the third terminal of the four-terminal synthesizer
a first switch capable of switching between supplying the first input terminal of the diplexer or supplying the output of the third terminal to the feeding section of the antenna; and a fourth switch of the four-terminal combiner. a second switch capable of switching the terminal to a state of supplying the output of the audio power amplifier or a state of supplying the output of the audio power amplifier to the second input terminal of the CIN diplexer; characterized in that, when the CIN diplexer fails, the output of the audio power amplifier is guided to the four-terminal synthesizer, and the output of the third terminal of the synthesizer is guided directly to the antenna. Television transmitter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10650288U JPH0228181U (en) | 1988-08-11 | 1988-08-11 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10650288U JPH0228181U (en) | 1988-08-11 | 1988-08-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0228181U true JPH0228181U (en) | 1990-02-23 |
Family
ID=31340076
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10650288U Pending JPH0228181U (en) | 1988-08-11 | 1988-08-11 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0228181U (en) |
-
1988
- 1988-08-11 JP JP10650288U patent/JPH0228181U/ja active Pending
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