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NO172828C - Transmisjonssystem for telefonkommunikasjon eller dataoverfoering, samt telefonsett - Google Patents

Transmisjonssystem for telefonkommunikasjon eller dataoverfoering, samt telefonsett

Info

Publication number
NO172828C
NO172828C NO890132A NO890132A NO172828C NO 172828 C NO172828 C NO 172828C NO 890132 A NO890132 A NO 890132A NO 890132 A NO890132 A NO 890132A NO 172828 C NO172828 C NO 172828C
Authority
NO
Norway
Prior art keywords
telephone communication
phone set
data transmission
transmission system
transmission
Prior art date
Application number
NO890132A
Other languages
English (en)
Other versions
NO890132D0 (no
NO172828B (no
NO890132L (no
Inventor
Matti Myllymaeki
Original Assignee
Sostel Oy
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 Sostel Oy filed Critical Sostel Oy
Publication of NO890132D0 publication Critical patent/NO890132D0/no
Publication of NO890132L publication Critical patent/NO890132L/no
Publication of NO172828B publication Critical patent/NO172828B/no
Publication of NO172828C publication Critical patent/NO172828C/no

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/14Two-way operation using the same type of signal, i.e. duplex
    • H04L5/1423Two-way operation using the same type of signal, i.e. duplex for simultaneous baseband signals
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B14/00Transmission systems not characterised by the medium used for transmission
    • H04B14/002Transmission systems not characterised by the medium used for transmission characterised by the use of a carrier modulation
    • H04B14/004Amplitude modulation

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Interconnected Communication Systems, Intercoms, And Interphones (AREA)
  • Telephonic Communication Services (AREA)
  • Telephone Function (AREA)
NO890132A 1988-01-18 1989-01-12 Transmisjonssystem for telefonkommunikasjon eller dataoverfoering, samt telefonsett NO172828C (no)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI880189A FI78373C (fi) 1988-01-18 1988-01-18 Telefontrafik- eller dataoeverfoeringssystem.

Publications (4)

Publication Number Publication Date
NO890132D0 NO890132D0 (no) 1989-01-12
NO890132L NO890132L (no) 1989-07-19
NO172828B NO172828B (no) 1993-06-01
NO172828C true NO172828C (no) 1993-09-08

Family

ID=8525733

Family Applications (1)

Application Number Title Priority Date Filing Date
NO890132A NO172828C (no) 1988-01-18 1989-01-12 Transmisjonssystem for telefonkommunikasjon eller dataoverfoering, samt telefonsett

Country Status (6)

Country Link
US (1) US4989236A (no)
EP (1) EP0324975A3 (no)
JP (1) JPH01245662A (no)
DK (1) DK18989A (no)
FI (1) FI78373C (no)
NO (1) NO172828C (no)

Families Citing this family (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02280422A (ja) * 1989-04-20 1990-11-16 Nec Corp 音声会議装置用エコーキャンセラのトレーニング方法
FR2704703B1 (fr) * 1993-04-28 1995-06-30 Gemplus Card Int Appareil d'exploitation de signaux electriques.
US6389135B1 (en) * 1998-09-25 2002-05-14 Conexant Systems, Inc. Method and apparatus for deriving power from a clock signal coupled through capacitors
US6556677B1 (en) * 1999-05-27 2003-04-29 William Christopher Hardy Single-ended echo cancellation system and method
US9267330B2 (en) 2008-08-20 2016-02-23 Foro Energy, Inc. Long distance high power optical laser fiber break detection and continuity monitoring systems and methods
US9138786B2 (en) 2008-10-17 2015-09-22 Foro Energy, Inc. High power laser pipeline tool and methods of use
MX355677B (es) 2008-08-20 2018-04-25 Foro Energy Inc Star Método y sistema para hacer avanzar un pozo de perforación utilizando un láser de potencia alta.
US9027668B2 (en) 2008-08-20 2015-05-12 Foro Energy, Inc. Control system for high power laser drilling workover and completion unit
US10301912B2 (en) * 2008-08-20 2019-05-28 Foro Energy, Inc. High power laser flow assurance systems, tools and methods
US9242309B2 (en) 2012-03-01 2016-01-26 Foro Energy Inc. Total internal reflection laser tools and methods
US9719302B2 (en) 2008-08-20 2017-08-01 Foro Energy, Inc. High power laser perforating and laser fracturing tools and methods of use
US8627901B1 (en) 2009-10-01 2014-01-14 Foro Energy, Inc. Laser bottom hole assembly
US9244235B2 (en) 2008-10-17 2016-01-26 Foro Energy, Inc. Systems and assemblies for transferring high power laser energy through a rotating junction
US8571368B2 (en) 2010-07-21 2013-10-29 Foro Energy, Inc. Optical fiber configurations for transmission of laser energy over great distances
US9080425B2 (en) 2008-10-17 2015-07-14 Foro Energy, Inc. High power laser photo-conversion assemblies, apparatuses and methods of use
US9664012B2 (en) 2008-08-20 2017-05-30 Foro Energy, Inc. High power laser decomissioning of multistring and damaged wells
US9669492B2 (en) 2008-08-20 2017-06-06 Foro Energy, Inc. High power laser offshore decommissioning tool, system and methods of use
US9347271B2 (en) * 2008-10-17 2016-05-24 Foro Energy, Inc. Optical fiber cable for transmission of high power laser energy over great distances
US9089928B2 (en) 2008-08-20 2015-07-28 Foro Energy, Inc. Laser systems and methods for the removal of structures
US9360631B2 (en) 2008-08-20 2016-06-07 Foro Energy, Inc. Optics assembly for high power laser tools
US8720584B2 (en) 2011-02-24 2014-05-13 Foro Energy, Inc. Laser assisted system for controlling deep water drilling emergency situations
US8783360B2 (en) 2011-02-24 2014-07-22 Foro Energy, Inc. Laser assisted riser disconnect and method of use
US8684088B2 (en) 2011-02-24 2014-04-01 Foro Energy, Inc. Shear laser module and method of retrofitting and use
US8783361B2 (en) 2011-02-24 2014-07-22 Foro Energy, Inc. Laser assisted blowout preventer and methods of use
EP2606201A4 (en) 2010-08-17 2018-03-07 Foro Energy Inc. Systems and conveyance structures for high power long distance laster transmission
BR112013021478A2 (pt) 2011-02-24 2016-10-11 Foro Energy Inc método de perfuração de laser-mecânica de alta potência
WO2012116155A1 (en) 2011-02-24 2012-08-30 Foro Energy, Inc. Electric motor for laser-mechanical drilling
WO2012167102A1 (en) 2011-06-03 2012-12-06 Foro Energy Inc. Rugged passively cooled high power laser fiber optic connectors and methods of use
US9340405B2 (en) 2012-01-26 2016-05-17 Progressive International Electronics Inc. Fuel transaction tracking system
BR112015004458A8 (pt) 2012-09-01 2019-08-27 Chevron Usa Inc sistema de controle de poço, bop a laser e conjunto de bop
US10221687B2 (en) 2015-11-26 2019-03-05 Merger Mines Corporation Method of mining using a laser

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR833596A (fr) * 1937-06-24 1938-10-25 Systèmes de multiplication des communications télégraphiques ou téléphoniques
US2980769A (en) * 1957-05-06 1961-04-18 Westinghouse Electric Corp Bidirectional multiplex transistor communication apparatus
FR2102614A5 (no) * 1970-08-06 1972-04-07 Barok Albert
NO134477C (no) * 1974-10-29 1976-10-13 Manus Max
DE2644364C3 (de) * 1976-10-01 1981-07-16 Telefonbau Und Normalzeit Gmbh, 6000 Frankfurt Duplexfähiges Informationsübertragungsverfahren zwischen zwei über einen aus einem Verbindungsweg und einem Rückweg bestehenden Stromkreis miteinander verbundenen Datenstationen
US4326287A (en) * 1980-06-30 1982-04-20 International Business Machines Corp. Two wire bi-directional digital telephone link
EP0110427B1 (de) * 1982-12-07 1990-03-28 Josef Dirr Verfahren für die Übertragung von Nachrichten, bei dem die Codierung der Signale durch die Grösse der Amplituden der Halbwellen oder Perioden eines sinusförmigen Wechselstromes erfolgt
US4595803A (en) * 1984-02-02 1986-06-17 The United States Of America As Represented By The United States Department Of Energy Bidirectional amplifier

Also Published As

Publication number Publication date
NO890132D0 (no) 1989-01-12
FI78373B (fi) 1989-03-31
DK18989D0 (da) 1989-01-17
NO172828B (no) 1993-06-01
JPH01245662A (ja) 1989-09-29
FI880189A0 (fi) 1988-01-18
EP0324975A2 (en) 1989-07-26
DK18989A (da) 1989-07-19
FI78373C (fi) 1989-07-10
NO890132L (no) 1989-07-19
US4989236A (en) 1991-01-29
EP0324975A3 (en) 1990-11-28

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