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CA1035842A - Circuit reducteur d'interference - Google Patents

Circuit reducteur d'interference

Info

Publication number
CA1035842A
CA1035842A CA213,478A CA213478A CA1035842A CA 1035842 A CA1035842 A CA 1035842A CA 213478 A CA213478 A CA 213478A CA 1035842 A CA1035842 A CA 1035842A
Authority
CA
Canada
Prior art keywords
reduction circuit
interference reduction
interference
circuit
reduction
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
Application number
CA213,478A
Other languages
English (en)
Other versions
CA213478S (en
Inventor
Daniel F. Difonzo
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.)
CANADIAN OVERSEAS TELECOMMUNICATION Corp
Original Assignee
CANADIAN OVERSEAS TELECOMMUNICATION 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 CANADIAN OVERSEAS TELECOMMUNICATION Corp filed Critical CANADIAN OVERSEAS TELECOMMUNICATION Corp
Application granted granted Critical
Publication of CA1035842A publication Critical patent/CA1035842A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/002—Reducing depolarization effects

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Radio Relay Systems (AREA)
CA213,478A 1974-02-27 1974-11-12 Circuit reducteur d'interference Expired CA1035842A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/446,459 US3963990A (en) 1974-02-27 1974-02-27 Interference reduction circuit

Publications (1)

Publication Number Publication Date
CA1035842A true CA1035842A (fr) 1978-08-01

Family

ID=23772661

Family Applications (1)

Application Number Title Priority Date Filing Date
CA213,478A Expired CA1035842A (fr) 1974-02-27 1974-11-12 Circuit reducteur d'interference

Country Status (8)

Country Link
US (1) US3963990A (fr)
JP (1) JPS50122110A (fr)
CA (1) CA1035842A (fr)
DE (1) DE2453435C2 (fr)
FR (1) FR2262452B1 (fr)
GB (1) GB1503565A (fr)
IT (1) IT1024800B (fr)
SE (1) SE407001B (fr)

Families Citing this family (43)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2301978A1 (fr) * 1975-02-21 1976-09-17 Ibm France Egaliseur recursif a decision dirigee par la valeur de la phase du signal recu
JPS51115717A (en) * 1975-03-03 1976-10-12 Nec Corp Cross polarized wave compensating method
US4109212A (en) * 1976-10-29 1978-08-22 Bell Telephone Laboratories, Incorporated Complementary distortion circuit
US6114983A (en) 1977-09-15 2000-09-05 American Nucleonics Corporation Electronic counter measures in radar
US4191926A (en) * 1977-09-16 1980-03-04 Communications Satellite Corporation Method and apparatus for interference cancellation at base-band using multiplication of the desired interfering carriers
US4220923A (en) * 1978-03-29 1980-09-02 Harris Corporation Adaptive interference reduction system for crosstalk cancellation in a dual polarization system
US4501004A (en) * 1982-01-30 1985-02-19 Nippon Electric Co., Ltd. Device for eliminating FM or like interference from a digital microwave signal
US4561067A (en) * 1982-06-23 1985-12-24 British Telecommunications Multi-channel cross-talk interference reduction circuit using modulation-multiplying-demodulation correlator
US4490684A (en) * 1983-01-03 1984-12-25 Motorola, Inc. Adaptive quadrature combining apparatus
US4932039A (en) * 1989-06-08 1990-06-05 The United States Of America As Represented By The Secretary The Navy Pulse interference canceler of high power out-of-band pulse interference signals
JPH0389643A (ja) * 1989-08-31 1991-04-15 Nec Corp 交差偏波干渉補償器
US5568158A (en) * 1990-08-06 1996-10-22 Gould; Harry J. Electronic variable polarization antenna feed apparatus
FR2666186B1 (fr) * 1990-08-24 1994-05-06 Etat Francais Cnet Duplexeur bidirectionnel pour ondes hyperfrequences polarisees realisable notamment en technologie monolithique sur arseniure de gallium.
US5355512A (en) * 1992-03-12 1994-10-11 General Electric Co. Uplink null intrusion rejection for satellite communications systems
FR2690598B1 (fr) * 1992-04-24 1994-06-03 Sextant Avionique Ordonnancement de troncons de lignes d'un reseau, notamment pour le calcul de diaphonies entre lignes d'un reseau electrique.
WO1993025019A1 (fr) * 1992-06-01 1993-12-09 Fujitsu Limited Compensateur d'interferences entre des polarisations croisees et suppresseur d'interferences dues a des polarisations croisees utilisant ledit compensateur
US5619503A (en) * 1994-01-11 1997-04-08 Ericsson Inc. Cellular/satellite communications system with improved frequency re-use
US6157811A (en) * 1994-01-11 2000-12-05 Ericsson Inc. Cellular/satellite communications system with improved frequency re-use
JPH08251094A (ja) * 1995-03-15 1996-09-27 Hitachi Ltd 衛星通信システム及び方法
US6658234B1 (en) * 1995-06-02 2003-12-02 Northrop Grumman Corporation Method for extending the effective dynamic range of a radio receiver system
US6018317A (en) * 1995-06-02 2000-01-25 Trw Inc. Cochannel signal processing system
US5894590A (en) * 1995-07-31 1999-04-13 Motorola, Inc. Independent satellite-based communications systems sharing common frequency spectrum and method of operation thereof
US6008760A (en) * 1997-05-23 1999-12-28 Genghis Comm Cancellation system for frequency reuse in microwave communications
US6925130B2 (en) * 1998-10-30 2005-08-02 Broadcom Corporation Method and system for a reduced emissions direct drive transmitter for unshielded twisted pair (UTP) applications
EP1125401B1 (fr) 1998-10-30 2005-06-08 Broadcom Corporation Architecture d'emetteur giga-ethernet pour internet
US6804304B1 (en) 1998-10-30 2004-10-12 Broadcom Corporation Reduction of aggregate EMI emissions of multiple transmitters
US6373908B2 (en) * 1998-11-11 2002-04-16 Broadcom Corporation Adaptive electronic transmission signal cancellation apparatus for full duplex communication
US6823483B1 (en) * 1999-04-22 2004-11-23 Broadcom Corporation Physical coding sublayer for a multi-pair gigabit transceiver
US6859652B2 (en) 2000-08-02 2005-02-22 Mobile Satellite Ventures, Lp Integrated or autonomous system and method of satellite-terrestrial frequency reuse using signal attenuation and/or blockage, dynamic assignment of frequencies and/or hysteresis
MXPA02001964A (es) 2000-08-02 2003-07-21 Mobile Satellite Ventures Lp Reutilizacion de frecuencia satelital-terrestre coordinada.
US7792488B2 (en) 2000-12-04 2010-09-07 Atc Technologies, Llc Systems and methods for transmitting electromagnetic energy over a wireless channel having sufficiently weak measured signal strength
JP4354681B2 (ja) * 2002-09-13 2009-10-28 株式会社日立製作所 通信用半導体集積回路
KR100754635B1 (ko) * 2004-08-04 2007-09-05 삼성전자주식회사 통신 시스템에서의 전력 분배기/합성기
US7812693B1 (en) * 2007-02-28 2010-10-12 Pmc-Sierra Us, Inc. Lowpass-bandstop common mode filter for differential lines carrying high rate digital signals
GB0822967D0 (en) * 2008-12-16 2009-07-29 Era Tech Ltd Use of Steering in Interference Cancellation with Application to Communication through Disnal Jamming
US20120127034A1 (en) * 2010-11-19 2012-05-24 Raysat Antenna Systems, L.L.C. Phased Array Antenna with Reduced Component Count
US9628752B2 (en) * 2011-09-06 2017-04-18 Comcast Cable Communications, Llc Transmitting signals using directional diversity over a network
US10135423B1 (en) * 2017-11-01 2018-11-20 Hughes Network Systems, Llc 90 degree hybrid with varactor diodes for low loss, simple bias and zero power consumption phase shifter
EP4040691A1 (fr) 2018-03-09 2022-08-10 Isotropic Systems Ltd Réduction d'interférence dynamique pour systèmes de suivi de faisceau d'antenne
US11031680B2 (en) 2018-10-02 2021-06-08 Nxp B.V. Near-field electromagnetic induction (NFEMI) antenna
US10277284B1 (en) 2018-11-20 2019-04-30 Nxp B.V. Near-field device
US10819024B1 (en) 2019-04-10 2020-10-27 Nxp B.V. Combination near-field and far-field antenna
US11211694B2 (en) 2019-07-08 2021-12-28 Nxp B.V. Near-field wireless device

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3044062A (en) * 1960-04-27 1962-07-10 Katzin Martin Polarization diversity receiver
DE1298154B (de) * 1967-06-19 1969-06-26 Telefunken Patent Verfahren zum Ausblenden einer Stoerwelle
US3668567A (en) * 1970-07-02 1972-06-06 Hughes Aircraft Co Dual mode rotary microwave coupler
US3728643A (en) * 1971-11-01 1973-04-17 Bell Telephone Labor Inc Apparatus for transforming nonorthogonal elliptically polarized waves into orthogonal linearly polarized waves
US3735266A (en) * 1971-12-20 1973-05-22 Bell Telephone Labor Inc Method and apparatus for reducing crosstalk on cross-polarized communication links
US3815028A (en) * 1972-08-09 1974-06-04 Itt Maximum-likelihood detection system

Also Published As

Publication number Publication date
DE2453435C2 (de) 1985-07-04
JPS50122110A (fr) 1975-09-25
SE7501940L (fr) 1975-08-28
DE2453435A1 (de) 1975-08-28
FR2262452B1 (fr) 1978-08-18
GB1503565A (en) 1978-03-15
IT1024800B (it) 1978-07-20
US3963990A (en) 1976-06-15
FR2262452A1 (fr) 1975-09-19
SE407001B (sv) 1979-03-05

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