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BR8301158A - Sistema de dados para linhas de energia eletrica - Google Patents

Sistema de dados para linhas de energia eletrica

Info

Publication number
BR8301158A
BR8301158A BR8301158A BR8301158A BR8301158A BR 8301158 A BR8301158 A BR 8301158A BR 8301158 A BR8301158 A BR 8301158A BR 8301158 A BR8301158 A BR 8301158A BR 8301158 A BR8301158 A BR 8301158A
Authority
BR
Brazil
Prior art keywords
electric power
power lines
data system
data
lines
Prior art date
Application number
BR8301158A
Other languages
English (en)
Inventor
Eric A Udren
Original Assignee
Westinghouse Electric 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 Westinghouse Electric Corp filed Critical Westinghouse Electric Corp
Publication of BR8301158A publication Critical patent/BR8301158A/pt

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/54—Systems for transmission via power distribution lines
    • H04B3/542—Systems for transmission via power distribution lines the information being in digital form
    • H02J13/1313—
    • H02J13/333—
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2203/00—Indexing scheme relating to line transmission systems
    • H04B2203/54—Aspects of powerline communications not already covered by H04B3/54 and its subgroups
    • H04B2203/5404—Methods of transmitting or receiving signals via power distribution lines
    • H04B2203/5416—Methods of transmitting or receiving signals via power distribution lines by adding signals to the wave form of the power source
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2203/00—Indexing scheme relating to line transmission systems
    • H04B2203/54—Aspects of powerline communications not already covered by H04B3/54 and its subgroups
    • H04B2203/5404—Methods of transmitting or receiving signals via power distribution lines
    • H04B2203/5425—Methods of transmitting or receiving signals via power distribution lines improving S/N by matching impedance, noise reduction, gain control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2203/00—Indexing scheme relating to line transmission systems
    • H04B2203/54—Aspects of powerline communications not already covered by H04B3/54 and its subgroups
    • H04B2203/5462—Systems for power line communications
    • H04B2203/5466—Systems for power line communications using three phases conductors
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2203/00—Indexing scheme relating to line transmission systems
    • H04B2203/54—Aspects of powerline communications not already covered by H04B3/54 and its subgroups
    • H04B2203/5462—Systems for power line communications
    • H04B2203/5483—Systems for power line communications using coupling circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2203/00—Indexing scheme relating to line transmission systems
    • H04B2203/54—Aspects of powerline communications not already covered by H04B3/54 and its subgroups
    • H04B2203/5462—Systems for power line communications
    • H04B2203/5491—Systems for power line communications using filtering and bypassing
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S10/00—Systems supporting electrical power generation, transmission or distribution
    • Y04S10/16—Electric power substations
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
    • Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
    • Y04S40/121—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using the power network as support for the transmission

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Dc Digital Transmission (AREA)
BR8301158A 1982-03-11 1983-03-09 Sistema de dados para linhas de energia eletrica BR8301158A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/357,239 US4471399A (en) 1982-03-11 1982-03-11 Power-line baseband communication system

Publications (1)

Publication Number Publication Date
BR8301158A true BR8301158A (pt) 1983-11-22

Family

ID=23404839

Family Applications (1)

Application Number Title Priority Date Filing Date
BR8301158A BR8301158A (pt) 1982-03-11 1983-03-09 Sistema de dados para linhas de energia eletrica

Country Status (7)

Country Link
US (1) US4471399A (pt)
EP (1) EP0089515A1 (pt)
JP (1) JPS58168360A (pt)
AU (1) AU565130B2 (pt)
BR (1) BR8301158A (pt)
ES (1) ES8403258A1 (pt)
MX (1) MX155131A (pt)

Families Citing this family (113)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4727504A (en) * 1984-07-05 1988-02-23 The Charles Stark Draper Laboratory, Inc. Interference canceller and signal quantizer
US4636771A (en) * 1984-12-10 1987-01-13 Westinghouse Electric Corp. Power line communications terminal and interface circuit associated therewith
US4815106A (en) * 1986-04-16 1989-03-21 Adaptive Networks, Inc. Power line communication apparatus
US6104707A (en) * 1989-04-28 2000-08-15 Videocom, Inc. Transformer coupler for communication over various lines
US6282405B1 (en) 1992-10-22 2001-08-28 Norweb Plc Hybrid electricity and telecommunications distribution network
GB9222205D0 (en) 1992-10-22 1992-12-02 Norweb Plc Low voltage filter
US6144292A (en) * 1992-10-22 2000-11-07 Norweb Plc Powerline communications network employing TDMA, FDMA and/or CDMA
US5530737A (en) * 1993-03-22 1996-06-25 Phonex Corporation Secure access telephone extension system and method
US5911119A (en) * 1993-03-22 1999-06-08 Phonex Corporation Secure cordless telephone extension system and method
JPH088983A (ja) * 1994-06-15 1996-01-12 Fujitsu Ltd 装置間ディジタル信号伝送方法並びにディジタル信号送受信装置，ディジタル信号送信装置及びディジタル信号受信装置
GB9417359D0 (en) * 1994-08-26 1994-10-19 Norweb Plc A power transmission network and filter therefor
US5818821A (en) * 1994-12-30 1998-10-06 Intelogis, Inc. Universal lan power line carrier repeater system and method
US5864284A (en) * 1997-03-06 1999-01-26 Sanderson; Lelon Wayne Apparatus for coupling radio-frequency signals to and from a cable of a power distribution network
US5978371A (en) * 1997-03-31 1999-11-02 Abb Power T&D Company Inc. Communications module base repeater
US6037678A (en) * 1997-10-03 2000-03-14 Northern Telecom Limited Coupling communications signals to a power line
US6055435A (en) * 1997-10-16 2000-04-25 Phonex Corporation Wireless telephone connection surge suppressor
US5970127A (en) * 1997-10-16 1999-10-19 Phonex Corporation Caller identification system for wireless phone jacks and wireless modem jacks
US6107912A (en) * 1997-12-08 2000-08-22 Phonex Corporation Wireless modem jack
US5955992A (en) * 1998-02-12 1999-09-21 Shattil; Steve J. Frequency-shifted feedback cavity used as a phased array antenna controller and carrier interference multiple access spread-spectrum transmitter
US7430257B1 (en) * 1998-02-12 2008-09-30 Lot 41 Acquisition Foundation, Llc Multicarrier sub-layer for direct sequence channel and multiple-access coding
US6040759A (en) * 1998-02-17 2000-03-21 Sanderson; Lelon Wayne Communication system for providing broadband data services using a high-voltage cable of a power system
US6005759A (en) * 1998-03-16 1999-12-21 Abb Power T&D Company Inc. Method and system for monitoring and controlling an electrical distribution network
US5982276A (en) * 1998-05-07 1999-11-09 Media Fusion Corp. Magnetic field based power transmission line communication method and system
US6480510B1 (en) 1998-07-28 2002-11-12 Serconet Ltd. Local area network of serial intelligent cells
US6246868B1 (en) 1998-08-14 2001-06-12 Phonex Corporation Conversion and distribution of incoming wireless telephone signals using the power line
US6243571B1 (en) 1998-09-21 2001-06-05 Phonex Corporation Method and system for distribution of wireless signals for increased wireless coverage using power lines
US6778817B1 (en) 1998-12-01 2004-08-17 Phonex Corporation Method and system for combining wireless phone jack and RF wireless communications
US6278357B1 (en) * 1999-02-04 2001-08-21 Electric Power Research Institute, Inc. Apparatus and method for implementing digital communications on a power line
JP2003521147A (ja) 2000-01-20 2003-07-08 カレント・テクノロジーズ・エルエルシー 電力線通信ネットワークに於けるデータの分離方法
US6965302B2 (en) 2000-04-14 2005-11-15 Current Technologies, Llc Power line communication system and method of using the same
US7103240B2 (en) * 2001-02-14 2006-09-05 Current Technologies, Llc Method and apparatus for providing inductive coupling and decoupling of high-frequency, high-bandwidth data signals directly on and off of a high voltage power line
US6998962B2 (en) 2000-04-14 2006-02-14 Current Technologies, Llc Power line communication apparatus and method of using the same
US20020110311A1 (en) * 2001-02-14 2002-08-15 Kline Paul A. Apparatus and method for providing a power line communication device for safe transmission of high-frequency, high-bandwidth signals over existing power distribution lines
US6842459B1 (en) 2000-04-19 2005-01-11 Serconet Ltd. Network combining wired and non-wired segments
SG99310A1 (en) * 2000-06-16 2003-10-27 Oki Techno Ct Singapore Pte Methods and apparatus for reducing signal degradation
US6492897B1 (en) 2000-08-04 2002-12-10 Richard A. Mowery, Jr. System for coupling wireless signals to and from a power transmission line communication system
US6980089B1 (en) 2000-08-09 2005-12-27 Current Technologies, Llc Non-intrusive coupling to shielded power cable
WO2002015413A2 (en) * 2000-08-14 2002-02-21 Main.Net Communication Power line communication system
US6373377B1 (en) 2000-10-05 2002-04-16 Conexant Systems, Inc. Power supply with digital data coupling for power-line networking
US8670390B2 (en) 2000-11-22 2014-03-11 Genghiscomm Holdings, LLC Cooperative beam-forming in wireless networks
US7170405B2 (en) * 2000-12-26 2007-01-30 General Electric Company Method and apparatus for interfacing a power line carrier and an appliance
EP1371219A4 (en) 2001-02-14 2006-06-21 Current Tech Llc DATA COMMUNICATION VIA A POWER SUPPLY LINE
US9819449B2 (en) 2002-05-14 2017-11-14 Genghiscomm Holdings, LLC Cooperative subspace demultiplexing in content delivery networks
US10931338B2 (en) 2001-04-26 2021-02-23 Genghiscomm Holdings, LLC Coordinated multipoint systems
US10355720B2 (en) 2001-04-26 2019-07-16 Genghiscomm Holdings, LLC Distributed software-defined radio
US9893774B2 (en) 2001-04-26 2018-02-13 Genghiscomm Holdings, LLC Cloud radio access network
US10425135B2 (en) 2001-04-26 2019-09-24 Genghiscomm Holdings, LLC Coordinated multipoint systems
KR100746457B1 (ko) * 2001-05-19 2007-08-03 송요섭 전력선 자기장 통신의 단말기 인터페이스 컨트롤러
US6765479B2 (en) 2001-05-22 2004-07-20 Stewart William L Magnetic field based power transmission line communication method and system
WO2003005599A1 (en) * 2001-07-04 2003-01-16 Naeil Community Co., Ltd. Power line communication apparatus using spread spectrum and automatic meter reading system comprising with power line communication apparatus
AU2002355064A1 (en) * 2001-07-17 2003-03-03 Main.Net Communications Ltd. Dual purpose power line modem
US7406536B2 (en) * 2001-07-23 2008-07-29 Main.Net Communications Ltd. Dynamic power line access connection
US7069091B2 (en) 2001-11-01 2006-06-27 Salton, Inc. Intelligent microwave oven appliance
US7151968B2 (en) 2001-11-01 2006-12-19 Salton, Inc. Intelligent coffeemaker appliance
JP3713477B2 (ja) * 2001-11-19 2005-11-09 Ｔｄｋ株式会社 電力線通信システム
US7053756B2 (en) 2001-12-21 2006-05-30 Current Technologies, Llc Facilitating communication of data signals on electric power systems
US6914763B2 (en) * 2002-01-15 2005-07-05 Wellspring Heritage, Llc Utility control and autonomous disconnection of distributed generation from a power distribution system
US10142082B1 (en) 2002-05-14 2018-11-27 Genghiscomm Holdings, LLC Pre-coding in OFDM
US10200227B2 (en) 2002-05-14 2019-02-05 Genghiscomm Holdings, LLC Pre-coding in multi-user MIMO
US9628231B2 (en) 2002-05-14 2017-04-18 Genghiscomm Holdings, LLC Spreading and precoding in OFDM
US10644916B1 (en) 2002-05-14 2020-05-05 Genghiscomm Holdings, LLC Spreading and precoding in OFDM
US7102478B2 (en) 2002-06-21 2006-09-05 Current Technologies, Llc Power line coupling device and method of using the same
US6982611B2 (en) * 2002-06-24 2006-01-03 Current Technologies, Llc Power line coupling device and method of using the same
US6993317B2 (en) * 2002-10-02 2006-01-31 Amperion, Inc. Method and system for signal repeating in powerline communications
US7132819B1 (en) 2002-11-12 2006-11-07 Current Technologies, Llc Floating power supply and method of using the same
US20060152344A1 (en) * 2002-12-07 2006-07-13 Mowery Richard A Jr Powerline Communication Network Handoff
US6980090B2 (en) 2002-12-10 2005-12-27 Current Technologies, Llc Device and method for coupling with electrical distribution network infrastructure to provide communications
US6965303B2 (en) 2002-12-10 2005-11-15 Current Technologies, Llc Power line communication system and method
US6980091B2 (en) 2002-12-10 2005-12-27 Current Technologies, Llc Power line communication system and method of operating the same
US7075414B2 (en) 2003-05-13 2006-07-11 Current Technologies, Llc Device and method for communicating data signals through multiple power line conductors
US7064654B2 (en) 2002-12-10 2006-06-20 Current Technologies, Llc Power line communication system and method of operating the same
US7046124B2 (en) 2003-01-21 2006-05-16 Current Technologies, Llc Power line coupling device and method of using the same
US7248634B2 (en) * 2003-01-22 2007-07-24 Denso Corporation Integrated circuit for transceiver device with means for suppressing superimposed noise and for generating a more accurate output signal
IL154921A (en) 2003-03-13 2011-02-28 Mosaid Technologies Inc A telephone system that includes many separate sources and accessories for it
US7308103B2 (en) 2003-05-08 2007-12-11 Current Technologies, Llc Power line communication device and method of using the same
US7535121B2 (en) * 2003-05-14 2009-05-19 Samsung Electronics Co., Ltd. High voltage power supply apparatus and method of correcting current output from the apparatus
US7460467B1 (en) 2003-07-23 2008-12-02 Current Technologies, Llc Voice-over-IP network test device and method
US6995545B2 (en) * 2003-08-18 2006-02-07 Mks Instruments, Inc. Control system for a sputtering system
US7113134B1 (en) 2004-03-12 2006-09-26 Current Technologies, Llc Transformer antenna device and method of using the same
US11552737B1 (en) 2004-08-02 2023-01-10 Genghiscomm Holdings, LLC Cooperative MIMO
US11184037B1 (en) 2004-08-02 2021-11-23 Genghiscomm Holdings, LLC Demodulating and decoding carrier interferometry signals
US11381285B1 (en) 2004-08-02 2022-07-05 Genghiscomm Holdings, LLC Transmit pre-coding
US20070149162A1 (en) * 2005-02-24 2007-06-28 Powercast, Llc Pulse transmission method
KR20070105342A (ko) * 2005-02-24 2007-10-30 파이어플라이 파워 테크놀로지 전력 전송을 위한 방법, 장치 및 시스템
JP2006295479A (ja) 2005-04-08 2006-10-26 Matsushita Electric Ind Co Ltd 電力線通信装置及び電力線通信方法
US7414526B2 (en) * 2005-06-28 2008-08-19 International Broadband Communications, Inc. Coupling of communications signals to a power line
US7319717B2 (en) * 2005-06-28 2008-01-15 International Broadband Electric Communications, Inc. Device and method for enabling communications signals using a medium voltage power line
US7778514B2 (en) * 2005-07-15 2010-08-17 International Broadband Electric Communications, Inc. Coupling of communications signals to a power line
US7522812B2 (en) * 2005-07-15 2009-04-21 International Broadband Electric Communications, Inc. Coupling of communications signals to a power line
US7667344B2 (en) * 2005-07-15 2010-02-23 International Broadband Electric Communications, Inc. Coupling communications signals to underground power lines
ATE463091T1 (de) * 2005-07-29 2010-04-15 Grundfos Management As Verfahren zur datenübertragung zwischen einem pumpenaggregat und einer steuereinrichtung sowie ein entsprechend ausgebildetes pumpensystem
US7843145B2 (en) * 2006-01-13 2010-11-30 Universal Lighting Technologies, Inc. System and method for power line carrier communication using high frequency tone bursts
US20080056338A1 (en) * 2006-08-28 2008-03-06 David Stanley Yaney Power Line Communication Device and Method with Frequency Shifted Modem
US7961817B2 (en) * 2006-09-08 2011-06-14 Lsi Corporation AC coupling circuit integrated with receiver with hybrid stable common-mode voltage generation and baseline wander compensation
US8579793B1 (en) 2010-01-27 2013-11-12 James David Honeycutt Apparatus to affect brainwave entrainment over premises power-line wiring
US9686038B2 (en) * 2011-02-22 2017-06-20 Celeno Communications (Israel) Ltd. PHY-level wireless security
EP2512005B1 (en) * 2011-04-15 2017-02-15 Raychem International Remote control and operation of LV distribution networks
US9143112B2 (en) 2011-06-30 2015-09-22 Silicon Laboratories Inc. Circuits and methods for providing an impedance adjustment
CN102655423A (zh) * 2012-03-31 2012-09-05 杭州再灵电子科技有限公司 带阻波器的电力通信装置
DE102013214825B4 (de) 2013-07-30 2023-11-23 Bayerische Motoren Werke Aktiengesellschaft Verfahren zum Anpassen der Übertragungseigenschaften eines Signals
US12224860B1 (en) 2014-01-30 2025-02-11 Genghiscomm Holdings, LLC Linear coding in decentralized networks
US10682722B2 (en) 2014-12-18 2020-06-16 Illinois Tool Works Inc. Systems and methods for measuring characteristics of a welding cable with a low power transceiver
US10449614B2 (en) 2014-12-18 2019-10-22 Illinois Tool Works Inc. Systems and methods for solid state sensor measurements of welding cables
WO2018104822A1 (en) 2016-12-08 2018-06-14 Celeno Communications (Israel) Ltd. Establishing a secure uplink channel by transmitting a secret word over a secure downlink channel
US10637705B1 (en) 2017-05-25 2020-04-28 Genghiscomm Holdings, LLC Peak-to-average-power reduction for OFDM multiple access
US10243773B1 (en) 2017-06-30 2019-03-26 Genghiscomm Holdings, LLC Efficient peak-to-average-power reduction for OFDM and MIMO-OFDM
US10148282B1 (en) 2017-08-29 2018-12-04 Biosense Webster (Israel) Ltd. Heterodyne-mimicking adapter
US11343823B2 (en) 2020-08-16 2022-05-24 Tybalt, Llc Orthogonal multiple access and non-orthogonal multiple access
US12206535B1 (en) 2018-06-17 2025-01-21 Tybalt, Llc Artificial neural networks in wireless communication systems
US11917604B2 (en) 2019-01-25 2024-02-27 Tybalt, Llc Orthogonal multiple access and non-orthogonal multiple access
EP3915236A4 (en) 2019-01-25 2023-05-24 Genghiscomm Holdings, LLC ORTHOGONAL MULTI-ACCESS AND NON-ORTHOGONAL MULTI-ACCESS
WO2020242898A1 (en) 2019-05-26 2020-12-03 Genghiscomm Holdings, LLC Non-orthogonal multiple access
CN119561266B (zh) * 2025-02-05 2025-07-22 华创芯科(深圳)实业有限公司 一种双路无线充电防串扰方法、装置、电子设备和可读存储介质

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL245607A (pt) * 1959-01-19
DE1287148B (de) * 1965-05-20 1969-01-16 Siemens Ag Verfahren zur Schutzsignaluebertragung ueber Hochspannungsleitungen, auf denen uebereinen oder mehrere Nachrichtenkanaele Sprachsignale uebertragen werden
US3509537A (en) * 1966-10-31 1970-04-28 Univ Iowa State Res Found Inc Digital communication apparatus for a power distribution line
US3643160A (en) * 1970-03-19 1972-02-15 Westinghouse Electric Corp Three-frequency relaying system
US3688036A (en) * 1970-06-30 1972-08-29 George F Bland Binary data transmission system and clocking means therefor
US4040046A (en) * 1974-02-20 1977-08-02 Northern Illinois Gas Company Remote data readout system for transmitting digital data over existing electrical power lines
US4194182A (en) * 1977-08-23 1980-03-18 Martin James L Electrical switch controllable alternatively by an internal timer and by digital information from a remote source
DE2804086B2 (de) * 1978-01-31 1979-12-06 Siemens Ag, 1000 Berlin Und 8000 Muenchen Verfahren zum Ein- und Auskoppeln eines breitbandigen Impuls-Signals an eine Kabelstrecke mit ferngespeisten Zwischenverstärkerstellen
US4205360A (en) * 1978-07-24 1980-05-27 Westinghouse Electric Corp. Power line carrier apparatus
US4293846A (en) * 1979-08-27 1981-10-06 Pilgrim Electric Company Remote selective switching system for use with AC power line
JPS56136121A (en) * 1980-03-25 1981-10-24 Mitsubishi Electric Corp Multiterminal protecting relay

Also Published As

Publication number Publication date
MX155131A (es) 1988-01-29
AU1185683A (en) 1983-09-15
ES520469A0 (es) 1984-03-01
JPS58168360A (ja) 1983-10-04
AU565130B2 (en) 1987-09-03
ES8403258A1 (es) 1984-03-01
US4471399A (en) 1984-09-11
EP0089515A1 (en) 1983-09-28

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