GB2251326B - Communication system - Google Patents

Communication system

Info

Publication number
GB2251326B
GB2251326B GB9126410A GB9126410A GB2251326B GB 2251326 B GB2251326 B GB 2251326B GB 9126410 A GB9126410 A GB 9126410A GB 9126410 A GB9126410 A GB 9126410A GB 2251326 B GB2251326 B GB 2251326B
Authority
GB
United Kingdom
Prior art keywords
communication system
communication
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 - Fee Related
Application number
GB9126410A
Other versions
GB9126410D0 (en
GB2251326A (en
Inventor
David Warren Gibson
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
Publication of GB9126410D0 publication Critical patent/GB9126410D0/en
Publication of GB2251326A publication Critical patent/GB2251326A/en
Application granted granted Critical
Publication of GB2251326B publication Critical patent/GB2251326B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • H04B11/00—Transmission systems employing sonic, ultrasonic or infrasonic waves
GB9126410A 1990-12-12 1991-12-12 Communication system Expired - Fee Related GB2251326B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB909026983A GB9026983D0 (en) 1990-12-12 1990-12-12 Underwater communication systems for divers

Publications (3)

Publication Number Publication Date
GB9126410D0 GB9126410D0 (en) 1992-02-12
GB2251326A GB2251326A (en) 1992-07-01
GB2251326B true GB2251326B (en) 1994-06-01

Family

ID=10686896

Family Applications (2)

Application Number Title Priority Date Filing Date
GB909026983A Pending GB9026983D0 (en) 1990-12-12 1990-12-12 Underwater communication systems for divers
GB9126410A Expired - Fee Related GB2251326B (en) 1990-12-12 1991-12-12 Communication system

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB909026983A Pending GB9026983D0 (en) 1990-12-12 1990-12-12 Underwater communication systems for divers

Country Status (1)

Country Link
GB (2) GB9026983D0 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7043204B2 (en) * 2003-06-26 2006-05-09 The Regents Of The University Of California Through-the-earth radio

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4463452A (en) * 1982-09-13 1984-07-31 The United States Of America As Represented By The Secretary Of The Navy Tracking and telemetry system for severe multipath acoustic channels
GB2162668A (en) * 1984-03-21 1986-02-05 Marconi Co Ltd Underwater communication

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4463452A (en) * 1982-09-13 1984-07-31 The United States Of America As Represented By The Secretary Of The Navy Tracking and telemetry system for severe multipath acoustic channels
GB2162668A (en) * 1984-03-21 1986-02-05 Marconi Co Ltd Underwater communication

Also Published As

Publication number Publication date
GB9026983D0 (en) 1991-01-30
GB9126410D0 (en) 1992-02-12
GB2251326A (en) 1992-07-01

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19961212