Patent ID: 9461498
Filing Date: 2016-10-04
CPC Classification: G06F,H02J

Claim Text:
1. A method for wirelessly charging a portable terminal using a Radio Frequency (RF), the method comprising: detecting by a charging system one or more portable terminals within a predetermined chargeable area, requesting information associated with wireless charging to at least one of the one or more portable terminals, and receiving in response by the charging system the information associated with wireless charging from each said at least one or more portable terminals; selecting by the charging system at least one portable terminal to be wirelessly charged from among the at least one of the one or more portable terminals that responded to the previously-requested information, based on the received information, according to the determination result; and transmitting by the charging system an RF set for charging to the selected portable terminal, wherein an output level of the set RF is controlled based on the received information, wherein the information associated with charging includes subscription information regarding a wireless communication service the subscription information including at least one of information indicating whether the portable terminal is subscribed to a wireless charging service, authentication information related to the wireless charging service, and information about an RF channel used for wireless charging; and wherein when the portable terminal responds that there is no subscription to the wireless charging service, or the portable terminal is subscribed to a different wireless charging service, the charging system prompts the portable terminal to display an offer to subscribe to the charging service at least to receive one battery chare from the charging system.