JPS542613A - Method of and device for cancelling interference between signals - Google Patents

Method of and device for cancelling interference between signals

Info

Publication number
JPS542613A
JPS542613A JP6585878A JP6585878A JPS542613A JP S542613 A JPS542613 A JP S542613A JP 6585878 A JP6585878 A JP 6585878A JP 6585878 A JP6585878 A JP 6585878A JP S542613 A JPS542613 A JP S542613A
Authority
JP
Japan
Prior art keywords
signals
cancelling interference
cancelling
interference
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.)
Pending
Application number
JP6585878A
Other languages
English (en)
Inventor
Akanpora Ansonii
Otsutoo Jiyon Ruudein Dagurasu
Shiyuan Ie Yuu
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.)
AT&T Corp
Original Assignee
Western Electric Co Inc
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 Western Electric Co Inc filed Critical Western Electric Co Inc
Publication of JPS542613A publication Critical patent/JPS542613A/ja
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/204—Multiple access
    • H04B7/2041—Spot beam multiple access

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Radio Relay Systems (AREA)
JP6585878A 1977-06-03 1978-06-02 Method of and device for cancelling interference between signals Pending JPS542613A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/803,151 US4145658A (en) 1977-06-03 1977-06-03 Method and apparatus for cancelling interference between area coverage and spot coverage antenna beams

Publications (1)

Publication Number Publication Date
JPS542613A true JPS542613A (en) 1979-01-10

Family

ID=25185701

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6585878A Pending JPS542613A (en) 1977-06-03 1978-06-02 Method of and device for cancelling interference between signals

Country Status (5)

Country Link
US (1) US4145658A (ja)
EP (1) EP0000038B1 (ja)
JP (1) JPS542613A (ja)
CA (1) CA1105091A (ja)
DE (1) DE2861149D1 (ja)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4379398A (en) * 1980-06-12 1983-04-12 Kabushiki Kaisha Kobe Seiko Sho Pull-back type indirect extrusion press
US4862721A (en) * 1988-02-16 1989-09-05 Hydramet American, Inc. Multiple cylinder extrusion apparatus and method
JPH067836A (ja) * 1984-08-22 1994-01-18 Richard J Blanyer 複合線材及び複合ケーブル並びにそれらの製造方法
US5678442A (en) * 1995-06-27 1997-10-21 Ube Industries, Ltd. Extruder

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4450582A (en) * 1981-09-14 1984-05-22 Vitalink Communications Corporation Method and apparatus for increasing the capacity of a satellite transponder by reuse of bandwidth
US4827268A (en) * 1986-08-14 1989-05-02 Hughes Aircraft Company Beam-forming network
US4823341A (en) * 1986-08-14 1989-04-18 Hughes Aircraft Company Satellite communications system having frequency addressable high gain downlink beams
DE3644176A1 (de) * 1986-12-23 1988-07-14 Messerschmitt Boelkow Blohm Verfahren zur uebertragung von daten mittels eines geostationaeren satelliten und wenigstens eines subsatelliten
US5239668A (en) * 1989-11-06 1993-08-24 Motorola, Inc. Satellite signalling system
US5121503A (en) * 1989-11-06 1992-06-09 Motorola, Inc. Satellite signaling system having a signal beam with a variable beam area
CA2067809A1 (en) * 1989-11-06 1991-05-07 Walter Lee Davis Satellite signalling system having a signal beam with a variable beam area
ES2108042T3 (es) * 1989-12-14 1997-12-16 Motorola Inc Sistema de telemensajeria con acuse de recibo por satelite.
US5268694A (en) * 1992-07-06 1993-12-07 Motorola, Inc. Communication system employing spectrum reuse on a spherical surface
US5642358A (en) * 1994-04-08 1997-06-24 Ericsson Inc. Multiple beamwidth phased array
TW274170B (en) * 1994-06-17 1996-04-11 Terrastar Inc Satellite communication system, receiving antenna & components for use therein
US5745084A (en) * 1994-06-17 1998-04-28 Lusignan; Bruce B. Very small aperture terminal & antenna for use therein
JP2000502222A (ja) * 1995-12-07 2000-02-22 ビスター・テレコミュニケーションズ・インコーポレイテッド 無線パケットデータ分配通信システム
US6434384B1 (en) * 1997-10-17 2002-08-13 The Boeing Company Non-uniform multi-beam satellite communications system and method
US6711398B1 (en) * 2000-04-19 2004-03-23 Hughes Electronics Corporation Radio signal broadcast system and method
US7366463B1 (en) * 2000-05-05 2008-04-29 The Directv Group, Inc. Military UHF and commercial Geo-mobile system combination for radio signal relay
US6642883B2 (en) * 2001-08-30 2003-11-04 Lockheed Martin Corporation Multi-beam antenna with interference cancellation network
US20110148706A1 (en) * 2009-12-18 2011-06-23 Electronics And Telecommunications Research Institute Antenna with controlled sidelobe characteristics
US9042809B2 (en) 2013-03-19 2015-05-26 Delphi Technologies, Inc. Satellite communication having distinct low priority information broadcast into adjacent sub-regions

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2520184A (en) * 1941-11-08 1950-08-29 Int Standard Electric Corp Electrical wave signaling system
US3094695A (en) * 1960-03-23 1963-06-18 Sperry Rand Corp Antenna side lobe suppression system
GB1056352A (en) * 1963-07-29 1967-01-25 Marconi Co Ltd Improvements in or relating to aerial systems
US3369235A (en) * 1966-02-08 1968-02-13 Gorham Corp Directionally selective energy receiving system
USRE27478E (en) 1966-08-05 1972-09-19 Prior art
US3406401A (en) * 1966-08-25 1968-10-15 Bell Telephone Labor Inc Communication satellite system
US3511936A (en) * 1967-05-26 1970-05-12 Bell Telephone Labor Inc Multiply orthogonal system for transmitting data signals through frequency overlapping channels
US3541553A (en) * 1968-03-27 1970-11-17 Rca Corp Satellite communications systems
US3710255A (en) * 1969-03-21 1973-01-09 Raytheon Co Satellite communication system
US3711855A (en) * 1969-10-15 1973-01-16 Communications Satellite Corp Satellite on-board switching utilizing space-division and spot beam antennas
US3673497A (en) * 1970-10-28 1972-06-27 Peter V Gureckis Underground radio communication system for roadways
US3696429A (en) * 1971-05-24 1972-10-03 Cutler Hammer Inc Signal cancellation system
US3987444A (en) * 1974-08-12 1976-10-19 Hazeltine Corporation Interference rejection system for multi-beam antenna having single control loop

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4379398A (en) * 1980-06-12 1983-04-12 Kabushiki Kaisha Kobe Seiko Sho Pull-back type indirect extrusion press
JPH067836A (ja) * 1984-08-22 1994-01-18 Richard J Blanyer 複合線材及び複合ケーブル並びにそれらの製造方法
US4862721A (en) * 1988-02-16 1989-09-05 Hydramet American, Inc. Multiple cylinder extrusion apparatus and method
US5678442A (en) * 1995-06-27 1997-10-21 Ube Industries, Ltd. Extruder

Also Published As

Publication number Publication date
US4145658A (en) 1979-03-20
EP0000038A1 (en) 1978-12-20
CA1105091A (en) 1981-07-14
DE2861149D1 (en) 1981-12-24
EP0000038B1 (en) 1981-10-14

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