BR9709407A - Aparelho para detecção automática de configuração de amplificador de linha para monitoramento de status. - Google Patents

Aparelho para detecção automática de configuração de amplificador de linha para monitoramento de status.

Info

Publication number
BR9709407A
BR9709407A BR9709407-2A BR9709407A BR9709407A BR 9709407 A BR9709407 A BR 9709407A BR 9709407 A BR9709407 A BR 9709407A BR 9709407 A BR9709407 A BR 9709407A
Authority
BR
Brazil
Prior art keywords
line
line amplifier
new
automatic detection
status monitoring
Prior art date
Application number
BR9709407-2A
Other languages
English (en)
Inventor
John W Brickell E Waney H Nash
Original Assignee
Scientific Atlanta
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 Scientific Atlanta filed Critical Scientific Atlanta
Publication of BR9709407A publication Critical patent/BR9709407A/pt

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/36—Repeater circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/04—Control of transmission; Equalising
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N17/00—Diagnosis, testing or measuring for television systems or their details
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/10—Adaptations for transmission by electrical cable
    • H04N7/102—Circuits therefor, e.g. noise reducers, equalisers, amplifiers

Abstract

<B>APARELHO PARA DETECçãO AUTOMáTICA DE CONFIGURAçãO DE AMPLIFICADOR DE LINHA PARA MONITORAMENTO DE STATUS<D>. Um aparelho para indicar a configuração de um amplificador de linha de televisão a cabo (26). O amplificiador de linha contém um controlador (70) que detecta uma voltagem preestabelecida em uma liha de indicação de status. Quando o amplificador é reconfigurado, como pela adição de novos circuitos contendo novas funções de caracteristicas, estes novos circuitos contêm resistores que são derivados para modificar o nível de voltagem preestabelecido na linha de indicação de status apropriada. O controlador sente as voltagens modificadas e fornece uma indicação da nova função do novo circuito a uma extremidade de cabeça através de um sistema de distribuição de televisão a cabo.
BR9709407-2A 1996-06-03 1997-06-02 Aparelho para detecção automática de configuração de amplificador de linha para monitoramento de status. BR9709407A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US1900796P 1996-06-03 1996-06-03
PCT/US1997/009554 WO1997047093A1 (en) 1996-06-03 1997-06-02 Apparatus for automatic sensing of line amplifier configuration for status monitoring

Publications (1)

Publication Number Publication Date
BR9709407A true BR9709407A (pt) 1999-09-28

Family

ID=21790922

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9709407-2A BR9709407A (pt) 1996-06-03 1997-06-02 Aparelho para detecção automática de configuração de amplificador de linha para monitoramento de status.

Country Status (7)

Country Link
US (1) US6530088B1 (pt)
EP (1) EP0906668B1 (pt)
AU (1) AU3296797A (pt)
BR (1) BR9709407A (pt)
DE (1) DE69737019T2 (pt)
ES (1) ES2276428T3 (pt)
WO (1) WO1997047093A1 (pt)

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US7039942B2 (en) * 1998-08-14 2006-05-02 Cableserv Electronics, Ltd. Pad adjustable equalizer for two way cable transmission
TW512631B (en) * 1999-05-24 2002-12-01 Sharp Kk Signal distribution circuit
JP4249337B2 (ja) * 1999-06-29 2009-04-02 富士通株式会社 双方向ｃａｔｖシステム
US6779197B1 (en) * 1999-07-02 2004-08-17 Adc Telecommunications, Inc. Reverse path upstream signaling for status monitoring
US6567118B1 (en) 2000-10-27 2003-05-20 Scientific-Atlanta, Inc. Frequency agile adaptive automatic gain control circuit
US7088975B1 (en) * 2002-01-04 2006-08-08 Broadcom Corporation Automatic gain control system and method using multiple local AGC loops
US20030151699A1 (en) * 2002-02-14 2003-08-14 Pokorski Joseph D. Double remote system
US11812072B2 (en) * 2021-11-23 2023-11-07 Applied Optoelectronics, Inc. Node housing with lid-based mounting of node components for use in a broadband distribution network

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JPS56131214A (en) 1980-03-17 1981-10-14 Matsushita Electric Ind Co Ltd Catv device
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US4520508A (en) 1982-12-21 1985-05-28 General Instrument Corporation Subscriber terminal for monitoring radio-frequency signal ingress into cable television systems
CA1266707A (en) 1985-12-16 1990-03-13 Steve S. Yang Method of calibrating and equalizing a multi-channel automatic gain control amplifier
JPH0622353B2 (ja) * 1988-11-28 1994-03-23 富士通株式会社 伝送路の監視方式
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JPH03248659A (ja) * 1990-02-27 1991-11-06 Yagi Antenna Co Ltd トランク・アンプ・ステータス監視システム
FR2665988B1 (fr) 1990-08-14 1996-11-22 Cit Alcatel Procede et dispositif de commande automatique de gain d'un amplificateur a gain variable, et leur application a la commande de gain d'un syntoniseur, notamment pour reseau de videocommunication.
SG49266A1 (en) * 1992-05-19 1998-05-18 Thomson Multimedia Sa Method and apparatus for device control by data transmission in TV lines
JP3320452B2 (ja) * 1992-07-15 2002-09-03 沖電気工業株式会社 光中継器の監視制御方式
FR2694813B1 (fr) * 1992-08-12 1994-11-04 Pierre Itibar Dispositif de contrôle et de maintenance à distance de réseaux.
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JPH08278523A (ja) * 1995-04-05 1996-10-22 Hitachi Ltd 光増幅装置
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KR0150757B1 (ko) * 1995-12-20 1998-11-02 양승택 전송매체특성에 따른 선로구동 시스템
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Also Published As

Publication number Publication date
AU3296797A (en) 1998-01-05
US6530088B1 (en) 2003-03-04
DE69737019D1 (de) 2007-01-11
DE69737019T2 (de) 2007-05-31
EP0906668A1 (en) 1999-04-07
ES2276428T3 (es) 2007-06-16
WO1997047093A1 (en) 1997-12-11
EP0906668A4 (en) 1999-07-28
EP0906668B1 (en) 2006-11-29

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Legal Events

Date Code Title Description
FA10 Dismissal: dismissal - article 33 of industrial property law
B11Y Definitive dismissal - extension of time limit for request of examination expired [chapter 11.1.1 patent gazette]