Patent ID: 11923697
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 0:
1. A wireless power transmitting apparatus comprising:
a plate;
a communication circuit configured to communicate with a wireless device positioned on an upper surface of the plate;
a first distance sensor and a second distance sensor provided around a driving area of the plate and configured to acquire data about a distance to an object positioned on the upper surface of the plate;
a level sensor configured to acquire first level data;
a transmitting coil configured to transmit wireless power to the wireless device; and
a controller configured to:
acquire second level data from the wireless device through the communication circuit,
determine whether a foreign material is present between the plate and the wireless device based on the data about the distance, the first level data, and the second level data, and
determine whether to transmit the wireless power based on the determination of whether the foreign material is present,

wherein the first distance sensor and the second distance sensor protrude from the upper surface of the plate, and are positioned to face each other with the transmitting coil as a center.