AU6616890A - Satellite signalling system having a signal beam with a variable beam area - Google Patents

Satellite signalling system having a signal beam with a variable beam area

Info

Publication number
AU6616890A
AU6616890A AU66168/90A AU6616890A AU6616890A AU 6616890 A AU6616890 A AU 6616890A AU 66168/90 A AU66168/90 A AU 66168/90A AU 6616890 A AU6616890 A AU 6616890A AU 6616890 A AU6616890 A AU 6616890A
Authority
AU
Australia
Prior art keywords
signalling system
variable
area
satellite signalling
signal
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.)
Abandoned
Application number
AU66168/90A
Inventor
Walter Lee Davis
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.)
Motorola Solutions Inc
Original Assignee
Motorola 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 Motorola Inc filed Critical Motorola Inc
Publication of AU6616890A publication Critical patent/AU6616890A/en
Abandoned legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/022—One-way selective calling networks, e.g. wide area paging
    • 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
    • H04B7/185—Space-based or airborne stations; Stations for satellite systems
    • 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)
  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Radio Relay Systems (AREA)
  • Mobile Radio Communication Systems (AREA)
AU66168/90A 1989-11-06 1990-10-15 Satellite signalling system having a signal beam with a variable beam area Abandoned AU6616890A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US43226889A 1989-11-06 1989-11-06
US432268 1989-11-06

Publications (1)

Publication Number Publication Date
AU6616890A true AU6616890A (en) 1991-05-31

Family

ID=23715441

Family Applications (1)

Application Number Title Priority Date Filing Date
AU66168/90A Abandoned AU6616890A (en) 1989-11-06 1990-10-15 Satellite signalling system having a signal beam with a variable beam area

Country Status (6)

Country Link
EP (1) EP0504151A4 (en)
JP (1) JPH05501489A (en)
KR (1) KR950012831B1 (en)
AU (1) AU6616890A (en)
CA (1) CA2067809A1 (en)
WO (1) WO1991007024A1 (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5227802A (en) * 1991-12-23 1993-07-13 Motorola, Inc. Satellite system cell management
US5396643A (en) * 1992-08-24 1995-03-07 Motorola, Inc. Geographic-area selective low-earth satellite-based paging broadcast system and method
US5943324A (en) * 1994-01-11 1999-08-24 Ericsson, Inc. Methods and apparatus for mobile station to mobile station communications in a mobile satellite communication system
CN1212094A (en) * 1995-12-29 1999-03-24 艾利森公司 Time compressing transponder
US9275690B2 (en) 2012-05-30 2016-03-01 Tahoe Rf Semiconductor, Inc. Power management in an electronic system through reducing energy usage of a battery and/or controlling an output power of an amplifier thereof
US9509351B2 (en) 2012-07-27 2016-11-29 Tahoe Rf Semiconductor, Inc. Simultaneous accommodation of a low power signal and an interfering signal in a radio frequency (RF) receiver
US9716315B2 (en) 2013-03-15 2017-07-25 Gigpeak, Inc. Automatic high-resolution adaptive beam-steering
US9780449B2 (en) 2013-03-15 2017-10-03 Integrated Device Technology, Inc. Phase shift based improved reference input frequency signal injection into a coupled voltage controlled oscillator (VCO) array during local oscillator (LO) signal generation to reduce a phase-steering requirement during beamforming
US9531070B2 (en) 2013-03-15 2016-12-27 Christopher T. Schiller Extending beamforming capability of a coupled voltage controlled oscillator (VCO) array during local oscillator (LO) signal generation through accommodating differential coupling between VCOs thereof
US9722310B2 (en) 2013-03-15 2017-08-01 Gigpeak, Inc. Extending beamforming capability of a coupled voltage controlled oscillator (VCO) array during local oscillator (LO) signal generation through frequency multiplication
US9666942B2 (en) 2013-03-15 2017-05-30 Gigpeak, Inc. Adaptive transmit array for beam-steering
US9837714B2 (en) 2013-03-15 2017-12-05 Integrated Device Technology, Inc. Extending beamforming capability of a coupled voltage controlled oscillator (VCO) array during local oscillator (LO) signal generation through a circular configuration thereof
US9184498B2 (en) 2013-03-15 2015-11-10 Gigoptix, Inc. Extending beamforming capability of a coupled voltage controlled oscillator (VCO) array during local oscillator (LO) signal generation through fine control of a tunable frequency of a tank circuit of a VCO thereof

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1940958B2 (en) * 1968-08-15 1971-11-04 TIME MULTIPLEX MESSAGE SYSTEM
US3772475A (en) * 1972-08-28 1973-11-13 Communications Satellite Corp Satellite communications system with super frame format and frame segmented signalling
US4145658A (en) * 1977-06-03 1979-03-20 Bell Telephone Laboratories, Incorporated Method and apparatus for cancelling interference between area coverage and spot coverage antenna beams
US4145573A (en) * 1977-06-13 1979-03-20 Bell Telephone Laboratories, Incorporated Digital satellite system and method for serving users of differing capacities
US4188578A (en) * 1978-05-19 1980-02-12 Bell Telephone Laboratories, Incorporated Satellite communication system which concurrently transmits a scanning spot beam and a plurality of fixed spot beams
US4268831A (en) * 1979-04-30 1981-05-19 Sperry Corporation Antenna for scanning a limited spatial sector
US4489325A (en) * 1983-09-02 1984-12-18 Bauck Jerald L Electronically scanned space fed antenna system and method of operation thereof
EP0139034B1 (en) * 1983-10-21 1988-01-13 ANT Nachrichtentechnik GmbH Process for the transmission of information services by satellites
US4689625A (en) * 1984-11-06 1987-08-25 Martin Marietta Corporation Satellite communications system and method therefor
US4972151A (en) * 1985-10-01 1990-11-20 Hughes Aircraft Company Steered-beam satellite communication system
DE3706240A1 (en) * 1987-02-26 1988-09-08 Ant Nachrichtentech Method and radio paging system for selectively transmitting calls to mobile subscribers

Also Published As

Publication number Publication date
CA2067809A1 (en) 1991-05-07
JPH05501489A (en) 1993-03-18
WO1991007024A1 (en) 1991-05-16
KR920704453A (en) 1992-12-19
EP0504151A4 (en) 1992-12-02
KR950012831B1 (en) 1995-10-21
EP0504151A1 (en) 1992-09-23

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