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:
Mar. 29, 2011
Filed:
Oct. 30, 2007
Xun Liu, Guizhou, CN;
Wing Choi Ho, Hong Kong, HK;
Ron Shu Yuen Hui, Hong Kong, HK;
Wing Cheong Chan, Hong Kong, HK;
Xun Liu, Guizhou, CN;
Wing Choi Ho, Hong Kong, HK;
Ron Shu Yuen Hui, Hong Kong, HK;
Wing Cheong Chan, Hong Kong, HK;
City University of Hong Kong, Kowloon, HK;
Abstract
Methods and principles are described for systematizing localized charging, load identification and bi-directional communication in a planar battery charging system. Also described is control circuitry for selectively energizing a primary winding when a load is placed on the platform. The optimization of the size of the receiver winding compared to the transmitter winding is discussed, while the associated communication methods include techniques for load identification, compatibility checks, hand-shaking and communication of charging status.