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.

Date of Patent:
Oct. 14, 2025

Filed:

Dec. 24, 2020
Applicant:

Ntt, Inc., Tokyo, JP;

Inventors:

Kazumitsu Sakamoto, Musashino, JP;

Yosuke Fujino, Musashino, JP;

Daisuke Goto, Musashino, JP;

Yasuyoshi Kojima, Musashino, JP;

Kiyohiko Itokawa, Musashino, JP;

Assignee:

NTT, Inc., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01Q 3/04 (2006.01); H01Q 1/12 (2006.01); H01Q 1/34 (2006.01);
U.S. Cl.
CPC ...
H01Q 3/04 (2013.01); H01Q 1/12 (2013.01); H01Q 1/34 (2013.01);
Abstract

A communication device includes an antenna, a support portion, an actuator, a floating body, a sensor, and a control device. The antenna has a rod-shaped element. The instruction unit supports the antenna rotatably about a rotation axis orthogonal to an extending direction of the element. The actuator rotates the antenna about the rotation axis. The floating body supports the support portion and floats on water. The sensor measures a physical quantity related to inclination of the support portion. The control device includes a measurement value acquisition unit and a rotation control unit. The measurement value acquisition unit acquires a measurement value of the sensor. The rotation control unit drives the actuator on the basis of the measurement value to match a direction in which a change in the inclination is smallest with an extending direction of the antenna.


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