JPH03283880A - Branching device for catv - Google Patents

Branching device for catv

Info

Publication number
JPH03283880A
JPH03283880A JP2083526A JP8352690A JPH03283880A JP H03283880 A JPH03283880 A JP H03283880A JP 2083526 A JP2083526 A JP 2083526A JP 8352690 A JP8352690 A JP 8352690A JP H03283880 A JPH03283880 A JP H03283880A
Authority
JP
Japan
Prior art keywords
signal
distribution
signals
circuit
distributed
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.)
Granted
Application number
JP2083526A
Other languages
Japanese (ja)
Other versions
JP3164809B2 (en
Inventor
Tamio Ono
大野　民夫
Yoshihiro Goto
後藤　善弘
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NIPPON CABLE MEDIA ENG KK
NEC Corp
Original Assignee
NIPPON CABLE MEDIA ENG KK
NEC Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by NIPPON CABLE MEDIA ENG KK, NEC Corp filed Critical NIPPON CABLE MEDIA ENG KK
Priority to JP08352690A priority Critical patent/JP3164809B2/en
Publication of JPH03283880A publication Critical patent/JPH03283880A/en
Application granted granted Critical
Publication of JP3164809B2 publication Critical patent/JP3164809B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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  • Details Of Television Systems (AREA)
  • Studio Circuits (AREA)

Abstract

PURPOSE:To perform selection between a subscriber and a non-subscriber by dividing a signal branched from a transmission line distribution network to a first signal distributed directly and a second signal distributed after passing a filter, and selecting and outputting either the first signal or the second signal from an output side. CONSTITUTION:A TV signal inputted from an input terminal 1 to a branching circuit 3 is outputted to a distribution circuit 4, and is distributed to distribution signals a1 and a2 at the distribution circuit 4, and the distribution signal a1 is distributed to four distribution signals b1-b4 at a distribution circuit 5. The distribution signal a2 is distributed to four distribution signals c1-c4 at a distribu tion circuit 6 after passing a filter circuit 7, and distribution signals b1-b4, c1-c4 from the distribution circuits 5, 6 are selected by change-over switches 8-11, respectively, and selected distribution signals are outputted from output terminals 12-15. No TV signal for CATV is included in the output signals of the distribu tion signals c1-c4, and the TV signal for general broadcast is outputted. Thereby, it is possible to distinguish the subscriber from the non-subscriber.

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。[Detailed description of the invention] [Industrial application field] The present invention relates to a branch for CATV.

〔従来の技術〕[Conventional technology]

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 branching devices have a configuration in which input signals are uniformly distributed using a hybrid configuration circuit.

〔発明が解決しようとする課題〕[Problem to be solved by the invention]

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 branch mentioned above is configured to distribute the same input signal, so even if the subscriber cancels the subscription, the distributed CATV signal will be sent out and it will not be compatible with CATV unless the service line is removed. It has the disadvantage that it can be viewed on a television receiver or the like. Another drawback is that it is not possible to distinguish between members and non-participants for apartment complexes and the like.

〔課題を解決するための手段〕[Means to solve the problem]

本発明のＣＡＴＶ用分岐器は、ＣＡＴＶシステムの伝送
路分配網より分岐され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、前記分岐された信号を
前記ＣＡＴＶのＴＶ信号を阻止するろ波器を通して分配
する第２の分配回路で分配された第２の信号とに分けて
出力側で前記第１の信号かまたは前記第２の信号かのど
ちらかを選択して送出できる選択スイッチを有している
。The CATV branching device of 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 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 first signal distributed by a first distribution circuit that directly distributes a signal branched from a transmission line distribution network of a CATV system. A second signal distributed by a second distribution circuit is distributed through a filter that blocks the signal, and either the first signal or the second signal is selected on the output side. It has a selection switch that allows it to be sent out.

〔実施例〕〔Example〕

次に、本発明について図面を参照して説明する。 Next, the present invention will be explained 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がら
の信号を２分配する分配回路４と、分配回路４がらの一
方の分配信号を４分配する分配回路５と、分配回路４の
出方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, this embodiment has a branch circuit 3 that receives a TV signal branched from a transmission line distribution network of a CATV system at an input terminal 1 and transmits it at an output terminal 2, and a branch circuit 3 that divides the signal from the branch circuit 3 into two. a distribution circuit 4 that divides one distribution signal from the distribution circuit 4 into four, a filter 7 that blocks only the CATC TV signal from the other distribution signal output from the distribution circuit 4; A distribution circuit 6 divides the output signal of the filter circuit 7 into four, and each of the four distribution signals of the distribution circuit 5 is combined with each of the four distribution signals of the distribution circuit 6, It is comprised of changeover switches 8, 9, 10 and 11 for manually switching to and transmitting distribution signals.

次に、本実施例の動作について説明する。Next, the operation of this embodiment will be explained.

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ａｌ　、
ａ３に分配され、分配信号ａ、は分配回路５にて分配信
号ｂ１〜ｂ４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 the distribution circuit 4 divides the distribution signals al,
The distribution signal a is divided into four distribution signals b1 to b4 by the distribution circuit 5.

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 distribution signal a2 passes through the filter circuit 7 and is then distributed to the distribution circuit 6 into four distribution signals C1 to C4.

分配回路５，６からの分配信号ｂｌ〜ｂ４．ｃｌ〜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０１〜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。Distribution signals bl to b4 from distribution circuits 5 and 6. cl~C4
are selected by changeover switches 8-11, respectively, and the selected distribution signals are output from output terminals 12-15. The output signals of distribution signals 01 to C4 do not include TV signals for CATV, and only TV signals for general broadcasting are output.

〔発明の効果〕〔Effect of the invention〕

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 explained above, the present invention provides a first distribution circuit that directly distributes signals branched from a transmission line distribution network of a CATV system, and a second distribution circuit that distributes signals after passing through a filter. By having a selection switch that can select and send out either the first signal or the second signal on the output side separately from the second signal distributed in the circuit, it is possible to deal with the cancellation of a subscriber's contract, This has the effect of making it possible to easily select subscribers and non-subscribers by simply switching the selection switch.

【図面の簡単な説明】[Brief explanation of drawings]

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、８〜１
１・・・切換スイッチ、１２〜１５・・・出力端子、ａ
１〜ａ２ｂ、〜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... Filter circuit, 8-1
1... Selector switch, 12-15... Output terminal, a
1-a2b, ~b4. c1 to c4...Distribution signals.

Claims (1)

【特許請求の範囲】[Claims] ＣＡＴＶシステムの伝送路分配網より分岐された信号を
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
、前記分岐された信号を前記ＣＡＴＶのＴＶ信号を阻止
するろ波器を通して分配する第２の分配回路で分配され
た第２の信号とに分けて出力側で前記第１の信号かまた
は前記第２の信号か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を特徴とするＣＡＴＶ用分岐器
。A first signal distributed by a first distribution circuit that directly distributes the signal branched from the transmission line distribution network of the CATV system, and the branched signal is distributed through a filter that blocks the TV signal of the CATV. It is characterized by having a selection switch that can select and send out either the first signal or the second signal on the output side, dividing the signal into the second signal distributed by the second distribution circuit. A branch for CATV.
JP08352690A 1990-03-30 1990-03-30 Switch for CATV Expired - Fee Related JP3164809B2 (en)

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 true JPH03283880A (en) 1991-12-13
JP3164809B2 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)

Cited By (3)

* Cited by examiner, † Cited by third party
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

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030066929A (en) * 2002-02-06 2003-08-14 이대일 Active type directional coupler
KR20020032456A (en) * 2002-02-26 2002-05-03 고시연 Splitting system for controlling transmission path with an amplifier
KR100657738B1 (en) * 2005-06-02 2006-12-20 주식회사 대우일렉트로닉스 Method for transporting data of home-network system

Also Published As

Publication number Publication date
JP3164809B2 (en) 2001-05-14

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