The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 04, 2012
Filed:
Feb. 17, 2010
Applicants:
Mark Volanthen, Hampshire, GB;
Brendan Hyland, Edinburgh, GB;
Inventors:
Mark Volanthen, Hampshire, GB;
Brendan Hyland, Edinburgh, GB;
Assignee:
WFS Technologies Ltd., Edinburgh, GB;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H04B 13/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
A system for underwater communications through a region between a transmit antenna and a receive antenna using electromagnetic signals. When the system is in an inactive mode, the region is occupied by water. When the system is in an active mode, fluid having a reduced conductivity is introduced into the region to provide transmission of electromagnetic signals with a lower attenuation and thereby facilitate a higher data transfer rate for a given range of communication between the transmit antenna and the receive antenna.