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:
Sep. 01, 2015
Filed:
Aug. 03, 2011
Hideaki Haruyama, Fujisawa, JP;
Hideaki Haruyama, Fujisawa, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
According to one embodiment, a wireless power transfer system performs electrical power transfer and signal communication by magnetic field resonance. A power transfer apparatus includes a first resonator configured to resonate at a predetermined frequency and to switch a Q-factor between high and low, and a first controller configured to set the Q-factor of the first resonator high in the electrical power transfer, and to set the Q-factor of the first resonator low in the signal communication. The power reception apparatus includes a second resonator configured to resonate at the predetermined frequency and to switch a Q-factor between high and low, and a second controller configured to set the Q-factor of the second resonator high when performing the electrical power transfer and to set the Q-factor of the second resonator low when performing the signal communication.