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, 2018
Filed:
Mar. 22, 2018
Hitachi, Ltd., Chiyoda-ku, Tokyo, JP;
Ken Takei, Tokyo, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A wireless communication system is disclosed by which, in communication that uses rotationally polarized waves, the information transmission amount is increased to perform communication. A transmittertransmits a signal using polarized waves that are different at different timings using a rotationally polarized wave. In a receiver, a reception baseband circuitdetects different polarized waves received at timings corresponding to the polarized waves used by the transmitteron a time axis using a plurality of signals equivalent to the received signals to obtain a wireless propagation characteristic between the transmitterand the receiver. Then, the transmitterpropagates different signals in the form of a plurality of polarized waves at the same time using a plurality of rotationally polarized waves having initial polarization rotation phases different from each other. The transmission capacity can be increased by an amount corresponding to the number of different signals.