GB2269970B - Signalling system and method - Google Patents

Signalling system and method

Info

Publication number
GB2269970B
GB2269970B GB9319118A GB9319118A GB2269970B GB 2269970 B GB2269970 B GB 2269970B GB 9319118 A GB9319118 A GB 9319118A GB 9319118 A GB9319118 A GB 9319118A GB 2269970 B GB2269970 B GB 2269970B
Authority
GB
United Kingdom
Prior art keywords
signalling system
signalling
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
Application number
GB9319118A
Other versions
GB2269970A (en
GB9319118D0 (en
Inventor
Gilbert Davies
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.)
GJD Manufacturing Ltd
Original Assignee
GJD Manufacturing Ltd
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 GJD Manufacturing Ltd filed Critical GJD Manufacturing Ltd
Publication of GB9319118D0 publication Critical patent/GB9319118D0/en
Publication of GB2269970A publication Critical patent/GB2269970A/en
Application granted granted Critical
Publication of GB2269970B publication Critical patent/GB2269970B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/54—Systems for transmission via power distribution lines
    • H04B3/56—Circuits for coupling, blocking, or by-passing of signals
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
    • G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
    • G08B25/06—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium using power transmission lines
    • 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
    • H04B2203/5429—Applications for powerline communications
    • H04B2203/5441—Wireless systems or telephone
    • 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
    • H04B2203/5429—Applications for powerline communications
    • H04B2203/5458—Monitor sensor; Alarm systems
    • 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
GB9319118A 1991-03-16 1992-03-13 Signalling system and method Expired - Fee Related GB2269970B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB919105613A GB9105613D0 (en) 1991-03-16 1991-03-16 Signalling system and method
PCT/GB1992/000456 WO1992016920A1 (en) 1991-03-16 1992-03-13 Signalling system and method

Publications (3)

Publication Number Publication Date
GB9319118D0 GB9319118D0 (en) 1993-12-01
GB2269970A GB2269970A (en) 1994-02-23
GB2269970B true GB2269970B (en) 1995-03-15

Family

ID=10691710

Family Applications (2)

Application Number Title Priority Date Filing Date
GB919105613A Pending GB9105613D0 (en) 1991-03-16 1991-03-16 Signalling system and method
GB9319118A Expired - Fee Related GB2269970B (en) 1991-03-16 1992-03-13 Signalling system and method

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB919105613A Pending GB9105613D0 (en) 1991-03-16 1991-03-16 Signalling system and method

Country Status (4)

Country Link
EP (1) EP0576482A1 (en)
AU (1) AU1366392A (en)
GB (2) GB9105613D0 (en)
WO (1) WO1992016920A1 (en)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6282405B1 (en) 1992-10-22 2001-08-28 Norweb Plc Hybrid electricity and telecommunications distribution network
US6144292A (en) * 1992-10-22 2000-11-07 Norweb Plc Powerline communications network employing TDMA, FDMA and/or CDMA
GB9222205D0 (en) * 1992-10-22 1992-12-02 Norweb Plc Low voltage filter
GB9417359D0 (en) * 1994-08-26 1994-10-19 Norweb Plc A power transmission network and filter therefor
US6998962B2 (en) 2000-04-14 2006-02-14 Current Technologies, Llc Power line communication apparatus and method of using the same
FR2818824B1 (en) 2000-12-21 2003-03-21 St Microelectronics Sa INTEGRATED SWITCHER CONTROLLED BY RF TRANSFORMER
JP2004532562A (en) * 2001-03-29 2004-10-21 アンビエント・コーポレイション Coupling circuit for power line communication
US7173935B2 (en) 2002-06-07 2007-02-06 Current Grid, Llc Last leg utility grid high-speed data communication network having virtual local area network functionality
US7173938B1 (en) 2001-05-18 2007-02-06 Current Grid, Llc Method and apparatus for processing outbound data within a powerline based communication system
US7194528B1 (en) 2001-05-18 2007-03-20 Current Grid, Llc Method and apparatus for processing inbound data within a powerline based communication system
WO2002101952A1 (en) * 2001-06-12 2002-12-19 Main.Net Communications Ltd. Coupling circuits for power line communications
US7098773B2 (en) 2003-07-03 2006-08-29 Current Technologies, Llc Power line communication system and method of operating the same
US7280033B2 (en) 2003-10-15 2007-10-09 Current Technologies, Llc Surface wave power line communications system and method
US7307510B2 (en) 2005-09-02 2007-12-11 Current Technologies, Llc Power meter bypass device and method for a power line communications system
US7937065B2 (en) 2006-09-11 2011-05-03 Main.Net Communications Ltd. System and method for communicating over neutral power lines
JP6073578B2 (en) * 2012-06-07 2017-02-01 Ｎｅｃマグナスコミュニケーションズ株式会社 Power line carrier communication system
US9614588B2 (en) 2015-01-29 2017-04-04 Koolbridge Solar, Inc. Smart appliances
US9785213B2 (en) 2015-01-29 2017-10-10 Koolbridge Solar, Inc. Addressable electrical outlets
US10536039B2 (en) 2017-12-12 2020-01-14 Koolbridge Solar, Inc. Hybrid wired-wireless communication system for delivery of power from two or more sources to smart appliances

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0057632A2 (en) * 1981-01-29 1982-08-11 JEUMONT-SCHNEIDER Société anonyme dite: Control method for a train with automatic operation
US4745391A (en) * 1987-02-26 1988-05-17 General Electric Company Method of, and apparatus for, information communication via a power line conductor

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0057632A2 (en) * 1981-01-29 1982-08-11 JEUMONT-SCHNEIDER Société anonyme dite: Control method for a train with automatic operation
US4745391A (en) * 1987-02-26 1988-05-17 General Electric Company Method of, and apparatus for, information communication via a power line conductor

Also Published As

Publication number Publication date
AU1366392A (en) 1992-10-21
GB2269970A (en) 1994-02-23
WO1992016920A1 (en) 1992-10-01
GB9319118D0 (en) 1993-12-01
GB9105613D0 (en) 1991-05-01
EP0576482A1 (en) 1994-01-05

Similar Documents

Publication Publication Date Title
US6200485C1 (en) Hemofiltration system and method
GB9220978D0 (en) System design method
EP0472154A3 (en) Traffic control method and traffic control system
EP0603878A3 (en) Coding system and method.
EP0510656A3 (en) Evacuation system and method therefor
GB2269970B (en) Signalling system and method
EP0533196A3 (en) Version-up method and system
EP0549248A3 (en) An arbitration system and method
GB9125447D0 (en) Alarm system
GB2263042B (en) Voice activated system and method
GB2262417B (en) Telecommunications system and method
GB2263043B (en) Communication switching system and method
GB9224401D0 (en) Turfing system and method
GB2253734B (en) Alarm system
GB9223167D0 (en) Cenveyor system
EP0500268A3 (en) Collimation system and method
RO105862B1 (en) Local and distance signalling system
GB9004085D0 (en) Navagational system and method
GB2256518B (en) Signalling system
GB9013752D0 (en) Detector and signalling system
GB9115701D0 (en) Alarm system
GB9106370D0 (en) Alarm system
GB9209127D0 (en) Brake signalling apparatus and method
GB9102199D0 (en) Method and apparatus for signalling
GB2253692B (en) Alarm system

Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20070313