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:
Jan. 31, 2023
Filed:
Nov. 28, 2019
Sharp Kabushiki Kaisha, Sakai, JP;
Fg Innovation Company Limited, Tuen Mun, HK;
Atsushi Shirakawa, Sakai, JP;
Ryota Yamada, Sakai, JP;
Yasuhiro Hamaguchi, Sakai, JP;
Kazuhiko Fukawa, Yokohama, JP;
SHARP KABUSHIKI KAISHA, Sakai, JP;
FG Innovation Company Limited, Tuen Mun, HK;
Abstract
Provided are communication apparatus and a communication method that allow for secure communication even in a case that an eavesdropper has multiple antennas. An apparatus includes a transmitter configured to transmit a constant amplitude signal from three or more transmit antennas; a controller configured to control a phase of the constant amplitude signal, based on channel information and a target symbol; and a modulation unit configured to generate a modulation symbol from bits. The target symbol is generated by multiplying the modulation symbol by an amplitude coefficient.