公开(公告)号：US10698455B2

公开(公告)日：2020-06-30

申请号：US16163737

申请日：2018-10-18

Applicant: WITS Co., Ltd.

Inventor： Hyo Jung Yoon ,  Ki Won Chang ,  Chang Mok Han ,  Si Hyung Kim ,  Tae Heon Lee ,  Hyung Wook Cho ,  Taek Woo Kim ,  Sun Hee Lee ,  Dae Kyu Lee

IPC: G06F1/16 ,  H01Q1/38 ,  H01Q1/14 ,  H01Q1/24

Abstract: An antenna module includes an insulating substrate; a first antenna wiring including a first spiral wiring disposed on the insulating substrate and having a first portion disposed adjacent to an edge of the insulating substrate, and a second spiral wiring disposed on the insulating substrate and spaced apart from the first spiral wiring; and a magnetic part disposed on one surface of the insulating substrate and disposed to overlap a second portion of the first spiral wiring that is adjacent to the second spiral wiring without overlapping the first portion of the first spiral wiring.

公开(公告)号：US10608340B2

公开(公告)日：2020-03-31

申请号：US15880944

申请日：2018-01-26

Applicant: WITS Co., Ltd.

Inventor： Si Hyung Kim ,  Tae Heon Lee ,  Ki Won Chang ,  Taek Woo Kim ,  Dae Ung Ahn ,  Hyung Wook Cho

IPC: H01Q7/06 ,  H02J50/10 ,  G06K7/10 ,  H04B5/00 ,  H01Q1/52

Abstract: An antenna module includes a wiring part including a first antenna wiring and a second antenna wiring disposed on a substrate; and a magnetic part including a first magnetic part disposed on one surface of the wiring part and a second magnetic part disposed on the other surface of the wiring part, wherein the first magnetic part is disposed on one surface of the wiring part so as to face a portion of the first antenna wiring and a portion or the entirety of the second antenna wiring, and the second magnetic part is disposed on the other surface of the wiring part so as to face the other portion of the first antenna wiring.

公开(公告)号：US10547098B2

公开(公告)日：2020-01-28

申请号：US15800887

申请日：2017-11-01

Applicant: WITS Co., Ltd.

Inventor： Sang Beom Lee ,  Hyung Wook Cho ,  Jun Seung Yi ,  Yu Jin Lee ,  Jae Suk Sung ,  Dae Ki Lim ,  Seung Hun Ryu ,  Ki Won Chang ,  Jae Hyoung Cho ,  Si Hyung Kim

IPC: H01Q1/36 ,  H01Q7/00 ,  H01Q1/22 ,  H01P7/00 ,  H01F38/14 ,  H04B5/00 ,  H01Q25/00

Abstract: A double loop antenna includes a source loop comprising: a spiral-shaped conductive source coil pattern disposed on a top surface of a board, and a source capacitor pattern comprising symmetrical conductive patterns disposed on the top surface and a bottom surface of the board; and a resonance loop comprising: a spiral-shaped conductive resonance coil pattern disposed on the bottom surface of the board, and a resonance capacitor pattern comprising symmetrical conductive patterns disposed on the top surface and the bottom surface of the board, wherein the source coil pattern and the resonance coil pattern are formed on different surfaces of the board.

公开(公告)号：US10469133B2

公开(公告)日：2019-11-05

申请号：US15785955

申请日：2017-10-17

Applicant: WITS Co., Ltd.

Inventor： Dae Ung Ahn ,  Hyung Wook Cho ,  Jun Seung Yi ,  Yu Jin Lee ,  Seung Hun Ryu ,  Sang Beom Lee ,  Dae Ki Lim ,  Jae Hyoung Cho ,  Si Hyung Kim

IPC: H01Q1/24 ,  H01Q7/00 ,  H04B5/00 ,  H01Q19/28 ,  H01Q1/22 ,  H01F5/00 ,  H01F27/28 ,  H01F38/14

Abstract: An antenna device includes a first wiring may include a spiral shape forming an empty region therein, and a second wiring disposed inside or outside of the first wiring. The second wiring is disposed to be spaced apart from the first wiring, and includes a first ring-shaped wiring and a second ring-shaped wiring, which are concentric to each other.

公开(公告)号：US10567042B2

公开(公告)日：2020-02-18

申请号：US15806703

申请日：2017-11-08

Applicant: WITS Co.. Ltd.

Inventor： Dae Ung Ahn ,  Si Hyung Kim ,  Hyeon Gil Nam ,  Ki Won Chang ,  Yu Jin Lee ,  Dae Ki Lim

IPC: H04B5/00 ,  H05K1/02 ,  H01F5/00

Abstract: A coil module may include: a board; an input/output terminal unit formed on the board; and a coil for near field communications (NFC) disposed on one, or a plurality of, surface(s) of the board and connected to the input/output terminal unit, wherein the coil for NFC includes a first pattern portion having one end connected to the input/output terminal unit and disposed on the board to rotate or turn in one direction, a second pattern portion connected to the first pattern portion and traversing an internal area of the first pattern portion to divide the internal area of the first pattern portion into at least two portions, and a third pattern portion having one end connected to the second pattern portion and the other end connected to the input/output terminal unit.

公开(公告)号：US10454303B2

公开(公告)日：2019-10-22

申请号：US14547449

申请日：2014-11-19

Applicant: WITS Co., Ltd.

Inventor： Si Hyung Kim ,  Soon Tack Oh ,  Hyun Keun Lim ,  Sung Uk Lee ,  Ki Won Chang ,  Chul Gyun Park ,  Jae Suk Sung ,  Chang Soo Kang

IPC: H02J50/10 ,  H02J5/00 ,  H02J50/90 ,  H02J17/00 ,  H04B5/00 ,  H02J7/02 ,  H02J9/00

Abstract: There are provided a non-contact power supply device and a non-contact power supply method, in which a short beacon is transmitted to recognize a power receiving device, a long beacon is transmitted to wake-up a communications circuit of the power receiving device, and charging power is transmitted in a contactless manner, wherein at least one of signal levels of the short beacon and signal levels of the long beacon is varied.

公开(公告)号：US11228085B2

公开(公告)日：2022-01-18

申请号：US16723094

申请日：2019-12-20

Applicant: WITS Co., Ltd.

Inventor： Sang Beom Lee ,  Hyung Wook Cho ,  Jun Seung Yi ,  Yu Jin Lee ,  Jae Suk Sung ,  Dae Ki Lim ,  Seung Hun Ryu ,  Ki Won Chang ,  Jae Hyoung Cho ,  Si Hyung Kim

IPC: H01Q7/00 ,  H01Q1/22 ,  H01P7/00 ,  H01F38/14 ,  H04B5/00 ,  H01Q5/378 ,  H01F27/40 ,  H01F27/28 ,  H01F5/00 ,  H01Q25/00

Abstract: A double loop antenna includes a source loop comprising: a spiral-shaped conductive source coil pattern disposed on a top surface of a board, and a source capacitor pattern comprising symmetrical conductive patterns disposed on the top surface and a bottom surface of the board; and a resonance loop comprising: a spiral-shaped conductive resonance coil pattern disposed on the bottom surface of the board, and a resonance capacitor pattern comprising symmetrical conductive patterns disposed on the top surface and the bottom surface of the board, wherein the source coil pattern and the resonance coil pattern are formed on different surfaces of the board.

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.