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:
Nov. 22, 2022
Filed:
Nov. 16, 2018
Applicant:
Hitachi Automotive Systems, Ltd., Hitachinaka, JP;
Inventors:
Assignee:
Hitachi Astemo, Ltd., Hitachinaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01Q 3/26 (2006.01); H01Q 21/22 (2006.01);
U.S. Cl.
CPC ...
H01Q 3/267 (2013.01); H01Q 21/22 (2013.01);
Abstract
A reception power supplying unit generates each of reception signals before and after a switching operation. A signal processing circuit generates each of difference signals before and after the switching operation on the basis of the reception signal and a reference signal. A phase difference detector calculates, as a transmission phase difference, the phase difference between transmission power supplying units on the basis of the respective difference signals, and adjusts a phase shift amount on the basis of the transmission phase difference and a set phase difference that is previously set.