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GB0803348D0 - Shallow water radio communications network - Google Patents

Shallow water radio communications network

Info

Publication number
GB0803348D0
GB0803348D0 GBGB0803348.2A GB0803348A GB0803348D0 GB 0803348 D0 GB0803348 D0 GB 0803348D0 GB 0803348 A GB0803348 A GB 0803348A GB 0803348 D0 GB0803348 D0 GB 0803348D0
Authority
GB
United Kingdom
Prior art keywords
communications network
radio communications
shallow water
water radio
shallow
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.)
Ceased
Application number
GBGB0803348.2A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GBGB0803348.2A priority Critical patent/GB0803348D0/en
Publication of GB0803348D0 publication Critical patent/GB0803348D0/en
Priority to GB0902734.3A priority patent/GB2457581B/en
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
    • H04B5/40—Near-field transmission systems, e.g. inductive or capacitive transmission systems characterised by components specially adapted for near-field transmission
    • H04B5/48—Transceivers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B13/00—Transmission systems characterised by the medium used for transmission, not provided for in groups H04B3/00 - H04B11/00
    • H04B13/02—Transmission systems in which the medium consists of the earth or a large mass of water thereon, e.g. earth telegraphy
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0682—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission using phase diversity (e.g. phase sweeping)
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/10—Polarisation diversity; Directional diversity

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
GBGB0803348.2A 2008-02-25 2008-02-25 Shallow water radio communications network Ceased GB0803348D0 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GBGB0803348.2A GB0803348D0 (en) 2008-02-25 2008-02-25 Shallow water radio communications network
GB0902734.3A GB2457581B (en) 2008-02-25 2009-02-19 Shallow water radio communications network

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB0803348.2A GB0803348D0 (en) 2008-02-25 2008-02-25 Shallow water radio communications network

Publications (1)

Publication Number Publication Date
GB0803348D0 true GB0803348D0 (en) 2008-04-02

Family

ID=39284465

Family Applications (2)

Application Number Title Priority Date Filing Date
GBGB0803348.2A Ceased GB0803348D0 (en) 2008-02-25 2008-02-25 Shallow water radio communications network
GB0902734.3A Expired - Fee Related GB2457581B (en) 2008-02-25 2009-02-19 Shallow water radio communications network

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB0902734.3A Expired - Fee Related GB2457581B (en) 2008-02-25 2009-02-19 Shallow water radio communications network

Country Status (1)

Country Link
GB (2) GB0803348D0 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7711322B2 (en) 2005-06-15 2010-05-04 Wireless Fibre Systems Underwater communications system and method
US12136957B2 (en) 2005-06-15 2024-11-05 CSignum Ltd. Mobile device underwater communications system and method
US11750300B2 (en) 2005-06-15 2023-09-05 CSignum Ltd. Mobile device underwater communications system and method
US10735107B2 (en) 2005-06-15 2020-08-04 Wfs Technologies Ltd. Communications system
GB201303328D0 (en) 2013-02-25 2013-04-10 Wfs Technologies Ltd Underwater communication network
GB201520340D0 (en) * 2015-11-18 2015-12-30 Wfs Technologies Ltd Communication system network
GB201813169D0 (en) 2018-08-13 2018-09-26 Wfs Tech Limited Underwater navigation
TWI813807B (en) 2018-11-30 2023-09-01 芬蘭商順妥公司 Antenna assembly for a wrist worn device
GB2579400B (en) * 2018-11-30 2022-01-12 Suunto Oy Antenna assembly for operation underwater and in air
US11522276B1 (en) * 2019-07-09 2022-12-06 Hrl Laboratories, Llc Distributed semi-autonomous phased arrays for subsurface VLF transmission
US11581954B1 (en) 2019-07-09 2023-02-14 Hrl Laboratories, Llc Array of VLF scatterers for control of electromagnetic wave propagation on the ocean surface

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5432754A (en) * 1992-10-27 1995-07-11 Northeastern University Receiver for receiving a plurality of asynchronously transmitted signals
DE60207547T2 (en) * 2002-07-31 2006-08-10 Em Microelectronic-Marin S.A., Marin Portable receiver with reduced dispersion
US7174172B2 (en) * 2005-02-25 2007-02-06 Symbol Technologies, Inc. System and method for asset location in wireless networks
EP1891457B1 (en) * 2005-06-13 2011-03-23 WFS Technologies Limited Underwater navigation
US7711322B2 (en) * 2005-06-15 2010-05-04 Wireless Fibre Systems Underwater communications system and method
US20070127422A1 (en) * 2005-12-07 2007-06-07 Belcea John M System and method for computing the position of a mobile device operating in a wireless network
WO2007072066A1 (en) * 2005-12-23 2007-06-28 Wireless Fibre Systems Ltd Transmission of underwater electromagnetic radiation through the seabed
JP4779810B2 (en) * 2006-06-01 2011-09-28 日本電気株式会社 Undersea sensor network system and undersea sensor network configuration method
WO2008109929A1 (en) * 2007-03-09 2008-09-18 Commonwealth Scientific And Industrial Research Organisation Remote monitoring of underwater objects

Also Published As

Publication number Publication date
GB0902734D0 (en) 2009-04-01
GB2457581B (en) 2012-11-28
GB2457581A (en) 2009-08-26

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Legal Events

Date Code Title Description
AT Applications terminated before publication under section 16(1)