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:
Oct. 24, 2023
Filed:
Sep. 26, 2022
Canon Kabushiki Kaisha, Tokyo, JP;
Hitoshi Asai, Tokyo, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A power transmission unit includes an alternating-current power source that outputs alternating-current power, a clock generation unit that generates a clock signal higher in frequency than the alternating-current power, and a power transmission antenna that wirelessly transmits the power. A power reception unit includes, a power reception antenna that receives wirelessly the power from the power transmission antenna, and a rectification circuit that rectifies a voltage output from the power reception antenna and outputs the alternating-current power. A control system includes a correction unit that estimates a property change in one or more passive elements included in at least one of the power transmission unit or the power reception unit, and corrects a phase of the clock signal or the alternating-current power output from the alternating-current power source to maintain linearity between the alternating-current power output from the alternating-current power source and the alternating-current power output from the rectification circuit.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile