公开(公告)号：US10483767B2

公开(公告)日：2019-11-19

申请号：US14859885

申请日：2015-09-21

Applicant: WITS Co., Ltd.

Inventor： Dae Ki Lim ,  Tae Sung Kim ,  Hyeon Gil Nam ,  Chan Gwang An ,  Hyun Seok Lee ,  Ki Won Chang ,  Chang Mok Han ,  Sang Woo Bae ,  Sung Eun Cho ,  Jae Suk Sung

IPC: H01F5/00 ,  H02J5/00 ,  H02J50/70 ,  H02J50/10 ,  H01F27/28 ,  H01F27/29 ,  H01F38/14 ,  H02J7/02 ,  H01Q7/00 ,  H01Q7/06 ,  H01F17/00

Abstract: There are provided a thin film coil and an electronic device having the same, the thin film coil including a substrate; and a coil pattern including a first coil strand and a second coil strand formed on both surfaces of the substrate, respectively, wherein the first coil strand formed on one surface of the substrate includes at least one gyration path that passes through the other surface of the substrate and gyrates.

公开(公告)号：US10734158B2

公开(公告)日：2020-08-04

申请号：US15298587

申请日：2016-10-20

Applicant: WITS Co., Ltd.

Inventor： Hee Seung Kim ,  Tae Sung Kim ,  Jae Sun Won ,  Jae Suk Sung

IPC: H01F5/00 ,  H01F38/14 ,  H02J50/10 ,  H01F27/245 ,  H01F27/28 ,  H02J7/02 ,  H01F3/00

Abstract: There are provided a coil device and an apparatus including the same. The coil device includes a first coil and a second coil. The first coil is configured to receive a first signal using a first magnetic field formed in a first direction. The second coil includes a shape different from the first coil and is configured to form a second magnetic field in a second direction, different from the first direction, to transmit a second signal, different from the first signal.

公开(公告)号：US10404090B2

公开(公告)日：2019-09-03

申请号：US15045774

申请日：2016-02-17

Applicant: WITS Co., Ltd.

Inventor： Sung Uk Lee ,  Tae Sung Kim ,  Si Hyung Kim ,  Hee Sun Han

IPC: H02J5/00 ,  H02J7/02 ,  H02J50/12 ,  H02J50/80

Abstract: A wireless power transmitting method performed in a wireless power transmitting apparatus includes transmitting a long beacon signal via a transmitting coil; determining whether or not a response signal to the long beacon signal has been received at a wireless communicator; determining whether or not a degree of change in a level of impedance of the transmitting coil is within a reference range responsive to the determination that the response signal is not received; and wirelessly transmitting the power responsive to the determination: that the response signal has been received or that the degree of change is within the reference range.