JPS59104675U - multiplex broadcasting equipment - Google Patents
multiplex broadcasting equipmentInfo
- Publication number
- JPS59104675U JPS59104675U JP19952582U JP19952582U JPS59104675U JP S59104675 U JPS59104675 U JP S59104675U JP 19952582 U JP19952582 U JP 19952582U JP 19952582 U JP19952582 U JP 19952582U JP S59104675 U JPS59104675 U JP S59104675U
- Authority
- JP
- Japan
- Prior art keywords
- signal
- output
- audio
- multiplexed signal
- modulator
- 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
Landscapes
- Television Receiver Circuits (AREA)
- Stereo-Broadcasting Methods (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図はテレビ音声多重化信号と付加チャンネル信号の
変調周波数と最大周波数偏移を示すスペクトル図、第２
図は従来の付加チャンネルに使用 。
される出力フィルタの特性図、第３図は本考案の一実施
例を示す構成説明図、第４図は第３図の出 ゛カフィ
ルタの特性の一例を示す図、第５図は第３図の入力フィ
ルタの特性の一例を示す図である。
１１・・・付加チャンネルの多重信号、１２・・・ＦＭ
変調器、１３・・・出力フィルタ、１４・・・合成器、
１５・・・音声多重変調器、１６・・・複合信号、１７
・・・ＦＭ送信機、１８・・・ＦＭ受信機、１９・・・
分離器、２０・・・入力フィルタ、２１・・・ＦＭ復調
器、２２・・、・音声多重復調器。Figure 1 is a spectrum diagram showing the modulation frequency and maximum frequency deviation of the TV audio multiplexed signal and additional channel signal.
Diagram used for conventional additional channels. FIG. 3 is a configuration explanatory diagram showing one embodiment of the present invention, FIG. 4 is a diagram showing an example of the characteristics of the output filter shown in FIG. 3, and FIG. 5 is a diagram showing an example of the characteristics of the output filter shown in FIG. FIG. 2 is a diagram showing an example of characteristics of an input filter of FIG. 11...Additional channel multiplex signal, 12...FM
Modulator, 13... Output filter, 14... Combiner,
15...Audio multiplex modulator, 16...Composite signal, 17
...FM transmitter, 18...FM receiver, 19...
Separator, 20... Input filter, 21... FM demodulator, 22... Audio multiplexing demodulator.
Claims (1)
、付加チャンネルの多重信号をＦＭ変調するＦＭ変調器
と、このＦＭ変調器から出力される付加チャンネルのＦ
Ｍ変調信号が加えられて帯域制限されると共に両端側帯
波成分が減衰される側帯波減衰形の出力フィルタと、こ
の出力フィルタから出力された付加チャンネルのＦＭ変
調信号を前記音声多重変調器から出力される音声多重信
号の変調信号の高域側に付加する合成器と、この合成器
の出力信号を放送するＦＭ送信機と、このＦＭ送信機か
らの放送電波を受信復調するＦＭ受信機と、このＦＭ受
信機から出力される多重化信号が加えられ音声多重化信
号を復調する音声多重復調器と、前記ＦＭ受信機から出
力される多重化信号が分離して加えられる前記出力フィ
ルタと対称振幅周波数特性を有する入力フィルタと、こ
の入力フィルタの出力が加えられ付加チャンネルの多重
信号を復調するＦＭ復調器とを具備することを特徴とす
る多重放送装置。An audio multiplex modulator that outputs a modulated signal of an audio multiplexed signal, an FM modulator that performs FM modulation of a multiplexed signal of an additional channel, and an FM modulator that outputs a modulated signal of an additional channel.
A sideband attenuation type output filter in which the M modulation signal is applied to limit the band and attenuate the sideband components at both ends, and the FM modulation signal of the additional channel outputted from this output filter is outputted from the audio multiplex modulator. an FM transmitter that broadcasts the output signal of the synthesizer; an FM receiver that receives and demodulates the broadcast radio waves from the FM transmitter; an audio multiplexing demodulator that demodulates the audio multiplexed signal to which the multiplexed signal output from the FM receiver is applied; and an output filter to which the multiplexed signal output from the FM receiver is separated and added; 1. A multiplex broadcasting apparatus comprising: an input filter having frequency characteristics; and an FM demodulator to which the output of the input filter is applied and demodulates a multiplexed signal of an additional channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19952582U JPS59104675U (en) | 1982-12-28 | 1982-12-28 | multiplex broadcasting equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19952582U JPS59104675U (en) | 1982-12-28 | 1982-12-28 | multiplex broadcasting equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59104675U true JPS59104675U (en) | 1984-07-14 |
Family
ID=30425055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19952582U Pending JPS59104675U (en) | 1982-12-28 | 1982-12-28 | multiplex broadcasting equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59104675U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63310235A (en) * | 1987-06-11 | 1988-12-19 | Clarion Co Ltd | Fm multiplex signal receiver |
-
1982
- 1982-12-28 JP JP19952582U patent/JPS59104675U/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63310235A (en) * | 1987-06-11 | 1988-12-19 | Clarion Co Ltd | Fm multiplex signal receiver |
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