NO20052102L - Modem - Google Patents

Modem

Info

Publication number
NO20052102L
NO20052102L NO20052102A NO20052102A NO20052102L NO 20052102 L NO20052102 L NO 20052102L NO 20052102 A NO20052102 A NO 20052102A NO 20052102 A NO20052102 A NO 20052102A NO 20052102 L NO20052102 L NO 20052102L
Authority
NO
Norway
Prior art keywords
conductor
receiver
impedance
modem
output driver
Prior art date
Application number
NO20052102A
Other languages
English (en)
Other versions
NO339939B1 (no
NO20052102D0 (no
Inventor
Steven James Causier
Original Assignee
Vetco Gray Controls 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 Vetco Gray Controls Ltd filed Critical Vetco Gray Controls Ltd
Publication of NO20052102D0 publication Critical patent/NO20052102D0/no
Publication of NO20052102L publication Critical patent/NO20052102L/no
Publication of NO339939B1 publication Critical patent/NO339939B1/no

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
    • H04M11/06—Simultaneous speech and data transmission, e.g. telegraphic transmission over the same conductors
    • H04M11/066—Telephone sets adapted for data transmision
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/54—Systems for transmission via power distribution lines
    • H04B3/58—Repeater circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Retarders (AREA)
  • Communication Control (AREA)

Abstract

Et modem for mottagning og sending av data fra og til en leder omfatter en utgangsdriver for å sende data til lederen, en mottager for å motta data fra lederen og impedanstilpassende utstyr for å tilpasse mottagerinngangens impedans til lederens impedans. Både utgangsdriverens forsterkningsfaktor, mottagerens forsterkningsfaktor og mottagerinngangens impedans er justerbare.
NO20052102A 2004-05-01 2005-04-29 Modem NO339939B1 (no)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0409862A GB2413746B (en) 2004-05-01 2004-05-01 Modem

Publications (3)

Publication Number Publication Date
NO20052102D0 NO20052102D0 (no) 2005-04-29
NO20052102L true NO20052102L (no) 2005-11-02
NO339939B1 NO339939B1 (no) 2017-02-20

Family

ID=32482595

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20052102A NO339939B1 (no) 2004-05-01 2005-04-29 Modem

Country Status (5)

Country Link
US (1) US20050243983A1 (no)
BR (1) BRPI0501452A (no)
DE (1) DE102005016986B4 (no)
GB (1) GB2413746B (no)
NO (1) NO339939B1 (no)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7155164B1 (en) * 2004-06-03 2006-12-26 Marvell International Ltd. Method and apparatus for performing transmit pre-emphasis
GB2417656B (en) 2004-08-24 2009-02-11 Vetco Gray Controls Ltd Communication apparatus
US8279614B2 (en) * 2006-07-24 2012-10-02 Siemens Aktiengesellschaft Modem, in particular for subsea power line communication
RU2407149C2 (ru) * 2006-07-24 2010-12-20 Сименс Акциенгезелльшафт Способ и модем для подводной связи по линии электропередачи
CN101501584B (zh) * 2006-07-24 2012-06-20 西门子公司 用于海底电力线通信的调制解调器
US20080316004A1 (en) * 2007-06-19 2008-12-25 Kiko Frederick J Powerline communication apparatus and methods
EP2833591A1 (en) * 2013-07-31 2015-02-04 Siemens Aktiengesellschaft Subsea data communication interface unit
CN109302213A (zh) * 2018-10-23 2019-02-01 国网天津市电力公司电力科学研究院 一种用于电力载波通讯的宽带程控衰减器

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GB519426A (en) * 1938-09-20 1940-03-27 Standard Telephones Cables Ltd Improvements in or relating to multi-channel carrier wave transmission systems
GB945163A (en) * 1959-12-31 1963-12-23 British Telecomm Res Ltd Improvements in or relating to electrical signalling systems
US4061883A (en) * 1975-03-20 1977-12-06 Lorain Products Corporation Repeater for transmission lines of differing lengths
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US5727004A (en) 1995-03-14 1998-03-10 Adaptive Networks, Inc. Method and apparatus for data encoding and communication over noisy media
US5646619A (en) * 1995-04-26 1997-07-08 Lucent Technologies Inc. Self-calibrating high speed D/A converter
US5530377A (en) * 1995-07-05 1996-06-25 International Business Machines Corporation Method and apparatus for active termination of a line driver/receiver
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DE69942933D1 (de) * 1999-09-30 2010-12-23 St Microelectronics Srl Pegelregulierung eines Signals, das von einem Sense-Empfänger produziert wird, der an eine Stromleitung angeschlossenen ist
US6313682B1 (en) * 1999-12-08 2001-11-06 Analog Devices, Inc. Pulse generation circuit and method with transmission pre-emphasis
US6393123B1 (en) * 2000-04-12 2002-05-21 General Electric Company Method and modem circuit for determining connection status of a phone line
US7583797B2 (en) * 2000-07-10 2009-09-01 Broadcom Corporation Single ended analog front end
DE10133509C2 (de) * 2001-07-10 2003-05-22 Siemens Ag Übertragung von Daten über das Stromversorgungsnetz
JP2003174387A (ja) 2001-09-28 2003-06-20 Sumitomo Electric Ind Ltd ハイブリッド回路およびそれを用いた電力線搬送用モデム
EP1326390B1 (en) 2002-01-04 2005-12-28 Alcatel Impedance matching in line drivers
KR100456695B1 (ko) 2002-04-11 2004-11-10 삼성전자주식회사 전화선을 이용한 디지털 통신 시스템 및 그것의 초기화 방법
US6836149B2 (en) * 2002-04-12 2004-12-28 Stmicroelectronics, Inc. Versatile RSDS-LVDS-miniLVDS-BLVDS differential signal interface circuit
US7123651B2 (en) * 2002-07-31 2006-10-17 Lsi Logic Corporation Adaptable hybrid and selection method for ADSL modem data rate improvement
US7027589B2 (en) * 2002-11-27 2006-04-11 Texas Instruments Incorporated Single-ended loop test circuitry in a central office DSL modem
GB2396086C (en) 2002-12-03 2007-11-02 Vetco Gray Controls Ltd A system for use in controlling a hydrocarbon production well
US7346071B2 (en) * 2003-01-13 2008-03-18 Bareis Bernard F Broadband multi-drop local network, interface and method for multimedia access

Also Published As

Publication number Publication date
BRPI0501452A (pt) 2006-01-10
GB2413746B (en) 2007-02-14
GB0409862D0 (en) 2004-06-09
NO339939B1 (no) 2017-02-20
NO20052102D0 (no) 2005-04-29
GB2413746A (en) 2005-11-02
DE102005016986A1 (de) 2005-11-24
DE102005016986B4 (de) 2022-09-15
US20050243983A1 (en) 2005-11-03

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Legal Events

Date Code Title Description
CHAD Change of the owner's name or address (par. 44 patent law, par. patentforskriften)

Owner name: GE OIL & GAS UK LIMITED, GB