Patent ID: 9520749
Filing Date: 2016-12-13
CPC Classification: H02J

Claim Text:
1. A wireless power transmission method for preventing frequency interference in a wireless power system having a wireless power transmitter, a wireless device, and a controller, comprising: transmitting, by the wireless device, a using signal to the controller temporarily indicating that the wireless device is in use when the use of the wireless device starts; receiving, at the controller, the using signal transmitted by the wireless device; controlling, by the controller, the wireless power transmitter to be stopped when the using signal is received at the controller; generating, by the wireless device, a using complete signal indicating that the wireless device is no longer in use when the use of the wireless decide ends; and controlling, by the controller, the wireless power transmitter to be restarted when the using complete signal is received at the controller, where the wireless power transmitter generates and transmits a power signal for transmitting power by radio, and the controlling of the wireless power transmitter to be stopped includes stopping, by the controller, the operation of the wireless power transmitter during a predetermined waiting period when the controller receives the using signal by transmitting a using restriction signal and then transmitting a using restriction ending signal after the predetermined waiting period.