公开(公告)号：US20210184508A1

公开(公告)日：2021-06-17

申请号：US17270288

申请日：2019-08-19

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Kyungwoo LEE ,  Gongbo MOON ,  Sungkweon PARK

IPC: H02J50/20 ,  H02J50/40 ,  H02J50/80 ,  H02J50/90

Abstract: According to various embodiments, provided is a wireless power transmission device comprising a plurality of power transmission antennas, a geomagnetic sensor, a processor, and a communications circuit, wherein the processor is configured to: set a coordinate system on the basis of geomagnetic sensing information from the geomagnetic sensor; control such that, for charging an electronic device, a first RF wave is formed under a first transmission condition through the plurality of power transmission antennas; receive, from the electronic device and through the communications circuit, first information on a change in the position or location, or both, of the electronic device; at least on the basis of the first information, confirm the position or location, or both, of the electronic device in the coordinate system after the change of the electronic device; and control such that a second RF wave is formed under a second transmission condition through the plurality of power transmission antennas, wherein the second transmission condition is confirmed on the basis of the location or position, or both, of the electronic device after the change. Other various embodiments are possible.

公开(公告)号：US20200374604A1

公开(公告)日：2020-11-26

申请号：US16876376

申请日：2020-05-18

Applicant: Samsung Electronics Co., Ltd.

Inventor： Sungbum PARK ,  Kyungwoo LEE ,  Jaehyun PARK ,  Sungku YEO ,  Jeongman LEE

IPC: H04Q9/00 ,  G01R21/133 ,  H02J50/00 ,  H02J50/10

Abstract: A sensor device is provided. The sensor device includes an energy harvester configured to generate electric energy, a monitoring circuit, a sensor, a communication circuit, and at least one processor configured to obtain information indicating a magnitude of the generated electric energy via the monitoring circuit, obtain a sensing value via the sensor, and transmit the sensing value and the information indicating the magnitude of the generated electric energy via the communication circuit to the other electronic device.