JP3164809B2 - Switch for CATV - Google Patents
Switch for CATVInfo
- Publication number
- JP3164809B2 JP3164809B2 JP08352690A JP8352690A JP3164809B2 JP 3164809 B2 JP3164809 B2 JP 3164809B2 JP 08352690 A JP08352690 A JP 08352690A JP 8352690 A JP8352690 A JP 8352690A JP 3164809 B2 JP3164809 B2 JP 3164809B2
- Authority
- JP
- Japan
- Prior art keywords
- signal
- distribution
- circuit
- signals
- catv
- 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 - Fee Related
Links
Landscapes
- Studio Circuits (AREA)
- Details Of Television Systems (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明はCATV用分岐器に関する。Description: TECHNICAL FIELD The present invention relates to a CATV branching device.
従来のCATV用分岐器は、ハイブリット構成の回路によ
って入力信号を同一に分配する構成になっていた。Conventional CATV splitters have a configuration in which input signals are equally distributed by a circuit having a hybrid configuration.
上述した従来のCATV用分岐器は、同一の入力信号を分
配する構成になっているので、加入者が解約した場合
も、引込線を撤去しない限り、分配されたCATVの信号が
送出され、CATV対応テレビ受像機等で視聴が可能となっ
てしまうという欠点がある。また、集合住宅等に対して
は加入，非加入の区別をつけることができないという欠
点がある。The conventional CATV splitter described above is configured to distribute the same input signal, so even if the subscriber cancels, unless the service line is removed, the distributed CATV signal is sent out and the CATV is supported. There is a disadvantage that viewing on a television receiver or the like is possible. In addition, there is a disadvantage that it is not possible to make a distinction between subscribing and non-subscribing to an apartment house or the like.
［課題を解決するための手段］ 本発明のCATV用分岐器は、CATV信号を伝送するCATVシ
ステムの伝送路分配網より分岐された信号を分岐し、第
１の信号及び第２の信号として出力する第１の分配回路
と、前記第１の信号を第１の複数の分配信号に分岐する
第２の分配回路と、前記第２の信号が入力され、前記第
２の信号に含まれるCATVのTV信号を阻止して、ろ波信号
として出力するろ波回路と、前記ろ波信号を第２の複数
の分配信号に分岐する第３の分配回路と、前記第１の複
数の分配信号の一と前記第２の複数の分配信号の一とが
入力され、一方を選択して出力する複数の選択スイッチ
とを有している。[Means for Solving the Problems] A CATV splitter according to the present invention splits a signal branched from a transmission line distribution network of a CATV system for transmitting a CATV signal and outputs the signal as a first signal and a second signal. A first distribution circuit, a second distribution circuit for branching the first signal into a first plurality of distribution signals, and a CATV that receives the second signal and is included in the second signal. A filtering circuit that blocks a TV signal and outputs the filtered signal as a filtered signal, a third distribution circuit that branches the filtered signal into a second plurality of distributed signals, and one of the first plurality of distributed signals. And one of the second plurality of distribution signals, and a plurality of selection switches for selecting and outputting one.
［実施例］ 次に、本発明について図面を参照して説明する。Example Next, the present invention will be described with reference to the drawings.
第１図は本発明の一実施例を示すブロック図である。 FIG. 1 is a block diagram showing one embodiment of the present invention.
第１図において、本実施例はCATVシステムの伝送線路
分配網より分岐されたTV信号を入力端子１で受信して出
力端子２で送信する分岐回路３と、分岐回路３からの信
号を２分配する分配回路４と、分配回路４からの一方の
分配信号を４分配する分配回路５と、分配回路４の出力
の他方の分配信号からCATCのTV信号のみを阻止するろ波
器７と、ろ波回路７の出力信号を４分配する分配回路６
と、分配回路５の４個の分配信号のそれぞれを分配回路
６の４個の分配信号のそれぞれとを組合わせて、どちら
かの一方の分配信号に手動で切替えて送出する切替スイ
ッチ8,9,10,11とを有して構成している。In FIG. 1, the present embodiment is a branch circuit 3 for receiving a TV signal branched from a transmission line distribution network of a CATV system at an input terminal 1 and transmitting it at an output terminal 2, and distributing a signal from the branch circuit 3 into two. A distributing circuit 4, a distributing circuit 5 for distributing one of the distributed signals from the distributing circuit 4, a filter 7 for blocking only a CATC TV signal from the other distributed signal at the output of the distributing circuit 4, Distribution circuit 6 that distributes the output signal of wave circuit 7 into four
And the four distribution signals of the distribution circuit 5 in combination with each of the four distribution signals of the distribution circuit 6 to manually switch to either one of the distribution signals and send out the changeover switches 8, 9 , 10, and 11.
次に、本実施例の動作について説明する。 Next, the operation of the present embodiment will be described.
入力端子１から分岐回路３に入力されたTV信号は、分
配回路４に出力され、分配回路４にて分配信号a1,a2に
分配され、分配信号a1は分配回路５にて分配信号b1〜b4
に４分配される。分配信号a2はろ波回路７を経た後に分
配回路６に分配信号c1〜c4に４分配される。The TV signal input from the input terminal 1 to the branch circuit 3 is output to the distribution circuit 4 and distributed to the distribution signals a 1 and a 2 by the distribution circuit 4, and the distribution signal a 1 is distributed by the distribution circuit 5 b 1 to b 4
Are distributed to four. 4 is distributed to the distribution signal c 1 to c 4 to the distribution circuit 6 after passing through the distributed signals a 2-halo-wave circuit 7.
分配回路5,6からの分配信号b1〜b4,c1〜c4はそれぞれ
切換スイッチ８〜11で選択され、出力端子12〜15から選
択された分配信号が出力される。分配信号c1〜c4の出力
信号はCATV用のTV信号は含まれず、一般放送用のTV信号
のみが出力される。Distributed signals b 1 ~b 4, c 1 ~c 4 from the distribution circuit 5 and 6 are respectively selected by the changeover switch 8 to 11, distributed signal selected from the output terminal 12 to 15 is outputted. The output signal of the distributed signals c 1 to c 4 are not included in TV signals for CATV, only TV signals for general broadcast is outputted.
以上説明したように本発明は、CATVシステムの伝送路
分配網より分岐した信号を直接分配する第１の分配回路
で分配された第１の信号と、ろ波器通過後分配する第２
の分配回路で分配された第２の信号と分けて出力側で第
１の信号または第２の信号のどちらかを選択して送出で
きる選択スイッチを有することにより、加入者の解約時
の対処や集合住宅での加入，非加入者の選別を選択スイ
ッチの切換のみで容易に行うことができる効果がある。As described above, the present invention provides a first signal distributed by a first distribution circuit that directly distributes a signal branched from a transmission line distribution network of a CATV system, and a second signal that is distributed after passing through a filter.
A selection switch capable of selecting and transmitting either the first signal or the second signal on the output side separately from the second signal distributed by the distribution circuit of the above (3), and There is an effect that it is possible to easily select a member or a non-member in an apartment house only by switching a selection switch.
第１図は本発明の一実施例を示すブロック図である。 １……入力端子、２……出力端子、３……分岐回路、４
〜６……分配回路、７……ろ波回路、８〜11……切換ス
イッチ、12〜15……出力端子、a1〜a2,b1〜b4,c1〜c4…
…分配信号。FIG. 1 is a block diagram showing one embodiment of the present invention. 1 ... input terminal, 2 ... output terminal, 3 ... branch circuit, 4
6 ...... distribution circuit, 7 ...... filtering circuit, 8-11 ...... changeover switch, 12-15 ...... output terminal, a 1 ~a 2, b 1 ~b 4, c 1 ~c 4 ...
... Distribution signal.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 後藤 善弘 東京都港区芝５丁目７番15号 日本ケー ブルメディアエンジニアリング株式会社 内 (56)参考文献 特開 平１−216683（ＪＰ，Ａ) ──────────────────────────────────────────────────続 き Continuation of front page (72) Inventor Yoshihiro Goto 5-7-15 Shiba, Minato-ku, Tokyo Japan Cable Media Engineering Co., Ltd. (56) References JP-A-1-216683 (JP, A)
Claims (1)
分配網より分岐された信号を分岐し、第１の信号及び第
２の信号として出力する第１の分配回路と、 前記第１の信号を第１の複数の分配信号に分岐する第２
の分配回路と、 前記第２の信号が入力され、前記第２の信号に含まれる
CATVのTV信号を阻止して、ろ波信号として出力するろ波
回路と、 前記ろ波信号を第２の複数の分配信号に分岐する第３の
分配回路と、 前記第１の複数の分配信号の一と前記第２の複数の分配
信号の一とが入力され、一方を選択して出力する複数の
選択スイッチと を備えていることを特徴とするCATV用分岐器。1. A first distribution circuit for branching a signal branched from a transmission line distribution network of a CATV system for transmitting a CATV signal and outputting as a first signal and a second signal, the first signal Into a first plurality of distribution signals
And the second signal is input and included in the second signal.
A filtering circuit that blocks a CATV TV signal and outputs the filtered signal as a filtered signal; a third distribution circuit that branches the filtered signal into a second plurality of distributed signals; and the first plurality of distributed signals And one of the second plurality of distribution signals, and a plurality of selection switches for selecting and outputting one of the two distribution signals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP08352690A JP3164809B2 (en) | 1990-03-30 | 1990-03-30 | Switch for CATV |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP08352690A JP3164809B2 (en) | 1990-03-30 | 1990-03-30 | Switch for CATV |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03283880A JPH03283880A (en) | 1991-12-13 |
| JP3164809B2 true JP3164809B2 (en) | 2001-05-14 |
Family
ID=13804930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP08352690A Expired - Fee Related JP3164809B2 (en) | 1990-03-30 | 1990-03-30 | Switch for CATV |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3164809B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020032456A (en) * | 2002-02-26 | 2002-05-03 | 고시연 | Splitting system for controlling transmission path with an amplifier |
| KR20030066929A (en) * | 2002-02-06 | 2003-08-14 | 이대일 | Active type directional coupler |
| KR100657738B1 (en) * | 2005-06-02 | 2006-12-20 | 주식회사 대우일렉트로닉스 | Method for transporting data of home-network system |
-
1990
- 1990-03-30 JP JP08352690A patent/JP3164809B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03283880A (en) | 1991-12-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |