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:
May. 12, 2015
Filed:
Nov. 30, 2011
Yun Jae Won, Gyeonggi-do, KR;
Seung OK Lim, Gyeonggi-do, KR;
Yeon Kug Moon, Gyeonggi-do, KR;
Sun Hee Kim, Seoul, KR;
Kyu Sung Hwang, Gyeonggi-do, KR;
Yun Jae Won, Gyeonggi-do, KR;
Seung Ok Lim, Gyeonggi-do, KR;
Yeon Kug Moon, Gyeonggi-do, KR;
Sun Hee Kim, Seoul, KR;
Kyu Sung Hwang, Gyeonggi-do, KR;
Korea Electronics Technology Institute, Seongnam-si, KR;
Abstract
Disclosed is a charging method of a multi-node wireless charging system using magnetic field communication capable of effectively charging a plurality of nodes using the magnetic field communication. The magnetic field communication protocol for wireless charging is prepared and thus, an appropriate wireless charging device may be selected and charged for an appropriate time. The wireless charging method of the present invention includes: transmitting an association request frame; receiving an association response frame from the wireless charging devices; transmitting a charging requirement request frame; receiving a charging requirement response frame from the wireless charging devices; transmitting a charging preparation request frame; and transmitting power during a receiving period of the charging preparation response frame for the charging preparation request frame.