IT7827920A0 - Sistema di comunicazione via satellite. - Google Patents

Sistema di comunicazione via satellite.

Info

Publication number
IT7827920A0
IT7827920A0 IT7827920A IT2792078A IT7827920A0 IT 7827920 A0 IT7827920 A0 IT 7827920A0 IT 7827920 A IT7827920 A IT 7827920A IT 2792078 A IT2792078 A IT 2792078A IT 7827920 A0 IT7827920 A0 IT 7827920A0
Authority
IT
Italy
Prior art keywords
communication system
satellite communication
satellite
communication
Prior art date
Application number
IT7827920A
Other languages
English (en)
Other versions
IT1174448B (it
Original Assignee
Ibm
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 Ibm filed Critical Ibm
Publication of IT7827920A0 publication Critical patent/IT7827920A0/it
Application granted granted Critical
Publication of IT1174448B publication Critical patent/IT1174448B/it

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/11—Arrangements specific to free-space transmission, i.e. transmission through air or vacuum
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
    • H01Q19/06—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using refracting or diffracting devices, e.g. lens
    • H01Q19/067—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using refracting or diffracting devices, e.g. lens using a hologram
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/11—Arrangements specific to free-space transmission, i.e. transmission through air or vacuum
    • H04B10/118—Arrangements specific to free-space transmission, i.e. transmission through air or vacuum specially adapted for satellite communication

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Astronomy & Astrophysics (AREA)
  • General Physics & Mathematics (AREA)
  • Optical Communication System (AREA)
  • Radio Relay Systems (AREA)
IT27920/78A 1977-09-27 1978-09-21 Sistema di comunicazione via satelite IT1174448B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1175777A CH618820A5 (it) 1977-09-27 1977-09-27

Publications (2)

Publication Number Publication Date
IT7827920A0 true IT7827920A0 (it) 1978-09-21
IT1174448B IT1174448B (it) 1987-07-01

Family

ID=4376590

Family Applications (1)

Application Number Title Priority Date Filing Date
IT27920/78A IT1174448B (it) 1977-09-27 1978-09-21 Sistema di comunicazione via satelite

Country Status (8)

Country Link
US (1) US4214807A (it)
JP (1) JPS5451701A (it)
CA (1) CA1097108A (it)
CH (1) CH618820A5 (it)
DE (1) DE2836195A1 (it)
FR (1) FR2404345A1 (it)
GB (1) GB1581025A (it)
IT (1) IT1174448B (it)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4879532A (en) * 1984-05-03 1989-11-07 Board Of Regents, The University Of Texas System Method and apparatus for phase conjugate optical modulation
US4716417A (en) * 1985-02-13 1987-12-29 Grumman Aerospace Corporation Aircraft skin antenna
US5033833A (en) * 1990-02-26 1991-07-23 Martin Marietta Corporation Omni-directional optical antenna element
US5170269A (en) * 1991-05-31 1992-12-08 Texas Instruments Incorporated Programmable optical interconnect system
EP0580905A1 (en) * 1992-07-28 1994-02-02 BRITISH TELECOMMUNICATIONS public limited company Optical radiation devices
US5450219A (en) * 1993-11-17 1995-09-12 Hughes Aircraft Company Raster following telecentric illumination scanning system for enhancing light throughout in light valve projection systems
US5652750A (en) * 1995-08-28 1997-07-29 Ericsson Inc. Optical satellite feeder links
US7020462B1 (en) * 1997-06-02 2006-03-28 The Directv Group, Inc. Communications system using a satellite-based network with a plurality of spot beams providing ubiquitous coverage from two different satellites
US6043920A (en) * 1997-08-04 2000-03-28 Motorola, Inc. Method and apparatus for laser communication through a lossy medium
AU7824300A (en) * 1999-06-23 2001-01-09 Ball Aerospace & Technologies Corp. Receiving multiple wavelengths at high transmission rates
US7072591B1 (en) 1999-06-23 2006-07-04 Ball Aerospace & Technologies Corp. Processing of multiple wavelength signals transmitted through free space
US7265439B1 (en) * 1999-11-30 2007-09-04 Avago Technologies Fiber Ip (Singapore) Pte. Ltd. Low cost, high speed, high efficiency infrared transceiver
US7177550B1 (en) 2001-01-24 2007-02-13 Ball Aerospace & Technologies Corp. On-axis laser receiver wavelength demultiplexer with integral immersion lensed detectors
US7058306B1 (en) 2001-01-24 2006-06-06 Ball Aerospace & Technologies Corp. Asymmetrical laser communication transceiver configuration
US20040001720A1 (en) * 2002-06-27 2004-01-01 Krill Jerry A. Satellite-based mobile communication system
US7379088B2 (en) * 2002-07-01 2008-05-27 The Johns Hopkins University System and method for real-time image control and processing for use in wide area space based surveillance
DE102004040837B4 (de) * 2004-08-23 2007-04-12 Deutsches Zentrum für Luft- und Raumfahrt e.V. Verfahren und System zur verteilten hochratigen Übertragung großer Digitaldatenmengen
JP4616119B2 (ja) * 2005-08-05 2011-01-19 オリンパス株式会社 マルチビーム生成器、それを用いたマルチビーム光源および空間光伝送装置
FR2915039B1 (fr) * 2007-04-10 2010-08-13 Thales Sa Dispositif optique de transmission de donnees comportant une source emettant un faisceau laser

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3615123A (en) * 1969-05-26 1971-10-26 Trw Inc Multiple exposure holographic system
US3635538A (en) * 1970-02-27 1972-01-18 Sperry Rand Corp Stacked hologram apparatus
DE2160936A1 (de) * 1971-12-08 1973-06-14 Siemens Ag Holografische antenne
US3795768A (en) * 1971-12-15 1974-03-05 Communications Satellite Corp Holographic image scanner/recorder system
FR2191140B1 (it) * 1972-06-30 1975-03-07 Thomson Csf
US4076371A (en) * 1973-07-02 1978-02-28 Max-Planck-Gesellschaft Zur Forderung Der Wissenschaften E.V. Holographic recording material for infrared radiation
US3985975A (en) * 1975-03-04 1976-10-12 International Telephone And Telegraph Corporation Holographic telephone switching system
JPS51117056A (en) * 1975-04-05 1976-10-14 Fujitsu Ltd Signal distributer for light communication
US4017144A (en) * 1976-02-11 1977-04-12 Rca Corporation Recording assembly for volume holography
US4055423A (en) * 1976-04-15 1977-10-25 Rca Corporation Organic medium for thin-phase holography

Also Published As

Publication number Publication date
DE2836195A1 (de) 1979-03-29
CH618820A5 (it) 1980-08-15
US4214807A (en) 1980-07-29
FR2404345B1 (it) 1982-12-03
IT1174448B (it) 1987-07-01
GB1581025A (en) 1980-12-10
JPS5451701A (en) 1979-04-23
FR2404345A1 (fr) 1979-04-20
CA1097108A (en) 1981-03-10

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