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Title:
UNDERWATER COMMUNICATION DEVICE AND UNDERWATER COMMUNICATION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2019/187607
Kind Code:
A1
Abstract:
Provided is an underwater communication device capable of improving data transmission efficiency under water. The underwater communication device communicates data under water with another underwater communication device having another first coil and another second coil. The underwater communication device comprises: a first coil for transmitting data with the other first coil via a magnetic field; a second coil for transmitting data with the other second coil via the magnetic field; a supply unit for supplying data to the first coil and the second coil; a first condenser connected to the first coil to form a first resonance circuit resonates with the first coil at a first resonant frequency; and a second condenser connected to the second coil to form a second resonant circuit resonates with the second coil at a second resonant frequency different from the first resonant frequency.

Inventors:
EGUCHI Kazuhiro
KAWATA Souichi
OKAMOTO Katsuya
KOYANAGI Yoshio
Application Number:
JP2019/003035
Publication Date:
October 03, 2019
Filing Date:
January 29, 2019
Export Citation:
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Assignee:
PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD. (1-61, Shiromi 2-chome Chuo-ku, Osaka-sh, Osaka 07, 〒5406207, JP)
International Classes:
H04B13/02; H04B5/02
Domestic Patent References:
WO2011145515A12011-11-24
WO2017013825A12017-01-26
Foreign References:
JP2004048297A2004-02-12
JP2010021874A2010-01-28
JP2004096182A2004-03-25
Attorney, Agent or Firm:
Eikoh Patent Firm, P.C. (Toranomon East Bldg. 10F, 7-13 Nishi-Shimbashi 1-chome, Minato-k, Tokyo 03, 〒1050003, JP)
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