JPS5847099B2 - Multifunctional internal branching device - Google Patents
Multifunctional internal branching deviceInfo
- Publication number
- JPS5847099B2 JPS5847099B2 JP53128729A JP12872978A JPS5847099B2 JP S5847099 B2 JPS5847099 B2 JP S5847099B2 JP 53128729 A JP53128729 A JP 53128729A JP 12872978 A JP12872978 A JP 12872978A JP S5847099 B2 JPS5847099 B2 JP S5847099B2
- Authority
- JP
- Japan
- Prior art keywords
- vhf
- uhf
- signal
- mixer
- branching device
- 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.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/06—Receivers
- H04B1/16—Circuits
- H04B1/18—Input circuits, e.g. for coupling to an antenna or a transmission line
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
- Details Of Television Systems (AREA)
Description
【発明の詳細な説明】
本発明はテレビの共同受信装置に釦いて、ＵＨＦ、ＶＨ
Ｆその他の特殊信号を受信し、末端の各テレビ受信機に
信号を供給する場合に使用する多機能分岐装置に関する
ものである。DETAILED DESCRIPTION OF THE INVENTION The present invention provides a television communal reception device that can be used to receive UHF, VH,
This invention relates to a multifunctional branching device used to receive F and other special signals and supply the signals to each terminal television receiver.
テレビの共同受信施設にあっては、受信したＵＨＦ信号
、ＶＨＦ信号をその１１混合して末端の多くのテレビ受
信機に伝送する方式をとることもあるが、線路が長くな
る場合は、線路の中間にＵＨＦ、ＶＨＦ各信号の増幅器
を設置する必要があり、ＵＨＦ信号とＶＨＦ信号とは伝
送線路長に則する減衰量が大きく異るため、使用する増
幅器の性能或いは数をそれぞれに計算する必要があり、
また、隣接チャンネルを使用して伝送する方式にあって
は、施設の構成が複雑になるだけでなく長年の使用にあ
たって安定度に種々の問題が生じることは避けられなか
ったのである。In common television reception facilities, a system is sometimes used in which the received UHF and VHF signals are mixed and transmitted to many television receivers at the end, but if the line is long, It is necessary to install an amplifier for each UHF and VHF signal in between, and since the attenuation amount according to the transmission line length is significantly different between UHF and VHF signals, it is necessary to calculate the performance or number of amplifiers to be used separately. There is,
In addition, the method of transmitting data using adjacent channels not only complicates the structure of the facility, but also inevitably causes various problems with stability over many years of use.
本発明は上記したテレビ共同受信施設に使用する分岐装
置にあって、ＵＨＦ信号をＶＨＦのミツドバンド帯域の
信号に変換して伝送し、各分岐装置内に設置されたレベ
ルコントロール１．ＶＨＦ広帯域増幅器２を経て、分波
器３、ＶＨＦ→ＵＨＦコンバーター４、ＶＨＦ−＋ＵＨ
Ｆ信号混合器５、及び細分配器６を備えたコンバータユ
ニット７に伝送するのであり、このコンバーターユニッ
ト７の分波器３０人力及びＶＨＦ−ＵＨＦ信号混合器５
の出力間にコネクター付ケーブル８を接続することによ
って多分岐器のみの機能で使用することも出来るもので
ある。The present invention resides in a branching device used in the above-mentioned television common reception facility, which converts UHF signals into VHF mid-band signals and transmits the signals, and level controls installed in each branching device. Via VHF wideband amplifier 2, branching filter 3, VHF→UHF converter 4, VHF-+UH
The signal is transmitted to a converter unit 7 equipped with an F signal mixer 5 and a subdivider 6, and the converter unit 7 includes a branching filter 30 and a VHF-UHF signal mixer 5.
By connecting a cable with a connector 8 between the outputs of the multi-brancher, it can also be used as a multi-brancher alone.
本発明は叙上の構成よりなるもので、分岐線路の各分岐
装置に送られた信号を分岐して、分岐したＶＨＦのミツ
ドバンド帯域の信号をＵＨＦ信号に変換し改めて混合し
て供給することができる。The present invention has the above configuration, and is capable of branching signals sent to each branching device of a branching line, converting the branched VHF mid-band signal into a UHF signal, mixing it again, and supplying the signal. can.
しかも本発明ではＵＨＦ信号をＶＨＦの隣接チャンネル
の信号に変換するのではなくＶＨＦのミツドバンド帯域
の信号に変換するものであるため、ＶＨＦの隣接チャン
ネルに変換して伝送する方式のように、隣接チャンネル
の信号同志の干渉を防止する手段を施す必要がない。Moreover, in the present invention, the UHF signal is not converted to a VHF adjacent channel signal, but is converted to a VHF midband signal. There is no need to take measures to prevent interference between signals.
従ってＶＨＦの隣接チャンネルを使用する伝送方式に比
して施設の構成が簡潔になり経済的であると共に保守も
容易になる。Therefore, compared to a transmission system using VHF adjacent channels, the facility configuration is simpler, more economical, and easier to maintain.
父分波器３の入力端とＶＨＦ−ＵＨＦ混合器５の出力端
とをコネクター付ケーブル８で接続することによって■
ＨＦ信号をその１弘受信することもできる。By connecting the input end of the father splitter 3 and the output end of the VHF-UHF mixer 5 with a cable 8 with a connector, ■
It is also possible to receive HF signals on one side.
この場合コンバータユニットＴを各加入者毎に挿入すれ
ばＵＨＦ信号を必要とする加入者にだげＵＨＦ信号を供
給し、ＵＨＦ信号を必要としない加入者には供給しない
ようにすることができるため設備の無駄が無くなる。In this case, by inserting a converter unit T for each subscriber, it is possible to supply only the UHF signal to the subscribers who need the UHF signal, and not to the subscribers who do not need the UHF signal. Eliminates waste of equipment.
又本発明ではＶＨＦ広帯域増幅器２を設けであるため、
分波器３の入力端とＶＨＦ−ＵＨＦ混合器５の出力端と
をコネクター付ケーブル８で接続すれば、この増幅器２
によりレベル調整して分岐線路の分岐側とＶＨＦ−ＵＨ
Ｆ混合器５の入力のレベル差をＯとすることができるた
め、レベル補償用の分岐器として使用することもできる
。In addition, since the present invention is provided with the VHF wideband amplifier 2,
By connecting the input end of the duplexer 3 and the output end of the VHF-UHF mixer 5 with a cable 8 with a connector, this amplifier 2
Adjust the level to the branch side of the branch line and VHF-UH.
Since the level difference between the inputs of the F mixer 5 can be set to O, it can also be used as a branching device for level compensation.
以上説明したように本発明はＵＨＦアンテナで受信した
信号をその１１或いはＵＨＦに変換して受信するだけで
なく、受信点装置の入力に商用放送以外の信号を供給す
ることによって多種類の受信が出来るものである。As explained above, the present invention not only converts the signal received by a UHF antenna to 11 or UHF and receives it, but also provides various types of reception by supplying signals other than commercial broadcasting to the input of the receiving point device. It is possible.
第１図は本発明のブロックダイヤグラムである。
１・・・・・・レベルコントロール、２・・・・・・ｖ
ＨＦ広帯域増幅器、３・・・・・・分波器、４・・・・
・・ＶＨＦ−＋ＵＨＦコンバーター、５・・・・・・Ｖ
ＨＦ −Ｕ ＨＦ 信号混合ｅＳ、６・・・・・・多
分配器、７・・・・・・コンバーターユニット、８・・
・・・・コネクター付ケーフル。FIG. 1 is a block diagram of the present invention. 1...Level control, 2...v
HF wideband amplifier, 3... duplexer, 4...
・・VHF-+UHF converter, 5・・・・・・V
HF -U HF signal mixing eS, 6...Multi-distributor, 7...Converter unit, 8...
...Cable with connector.
Claims (1)
バンド帯域の信号に変換し、この信号を他のＶＨＦアン
テナで受信した信号と共に伝送し、各分岐線路に設置す
る分岐器の中にレベルコントロールと■ＨＦ広帯域増幅
器と多分配器とを設け、ＶＨＦ広帯域増幅器の出力端と
多分配器の入力端との間に、コネクター付ケーブル、又
は分波器、ＶＨＦ−ＵＨＦコンバータ、ＶＨＦ−ＵＨＦ
混合器から構成されるコンバータユニットを接続し、コ
ンバータユニットは分波５−ＶＨＦ−ＵＨＦ’：７ンバ
ーターＶＨＦ−ＵＨＦ混合器の経路と、分波器−ＶＨＦ
−ＵＨＦ混合器の経路とから構成されるようにした多機
能内臓分岐装置。I Convert the signal received by the UHF antenna to a VHF □rad band signal, transmit this signal together with the signal received by other VHF antennas, and install a level control and HF A wideband amplifier and a multi-distributor are provided, and a cable with a connector, a duplexer, a VHF-UHF converter, a VHF-UHF
A converter unit consisting of a mixer is connected, and the converter unit connects the path of the splitter 5-VHF-UHF':7 inverter VHF-UHF mixer and the splitter-VHF
- a multifunctional built-in branching device configured to consist of a UHF mixer path;
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP53128729A JPS5847099B2 (en) | 1978-10-19 | 1978-10-19 | Multifunctional internal branching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP53128729A JPS5847099B2 (en) | 1978-10-19 | 1978-10-19 | Multifunctional internal branching device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5555633A JPS5555633A (en) | 1980-04-23 |
| JPS5847099B2 true JPS5847099B2 (en) | 1983-10-20 |
Family
ID=14991996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP53128729A Expired JPS5847099B2 (en) | 1978-10-19 | 1978-10-19 | Multifunctional internal branching device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5847099B2 (en) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49116031U (en) * | 1973-02-02 | 1974-10-03 | ||
| JPS5394542U (en) * | 1976-12-29 | 1978-08-01 |
-
1978
- 1978-10-19 JP JP53128729A patent/JPS5847099B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5555633A (en) | 1980-04-23 |
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