公开(公告)号：US10790881B2

公开(公告)日：2020-09-29

申请号：US15962453

申请日：2018-04-25

Applicant: Samsung Electronics Co., Ltd.

Inventor： Youngjin Moon ,  Hyoungseok Oh ,  Sungwoo Lee

IPC: G06K5/00 ,  H04B5/00 ,  G06K7/08 ,  G06K19/04 ,  G06K19/06 ,  G06Q20/32 ,  G06Q20/34 ,  G06Q20/36 ,  G06Q20/38

Abstract: An electronic device may include a transmission circuit and an inductive element. The inductive element may be configured to generate a wireless communication signal based on a current. The transmission circuit may be configured to output the current based on a supply voltage; to increase an intensity of the current, from zero to an increased intensity that is less than or equal to a target value, by alternately repeating a first increase and a first decrease of the intensity of the current, in a first time interval; to decrease the intensity of the current, from the increased intensity to zero, by alternately repeating a second increase and a second decrease of the intensity of the current, in a second time interval.

公开(公告)号：US11139861B2

公开(公告)日：2021-10-05

申请号：US17001013

申请日：2020-08-24

Applicant: Samsung Electronics Co., Ltd.

Inventor： Youngjin Moon ,  Hyoungseok Oh ,  Sungwoo Lee

IPC: G06K5/00 ,  H04B5/00 ,  G06K7/08 ,  G06K19/04 ,  G06K19/06 ,  G06Q20/32 ,  G06Q20/34 ,  G06Q20/36 ,  G06Q20/38

Abstract: An electronic device may include a transmission circuit and an inductive element. The inductive element may be configured to generate a wireless communication signal based on a current. The transmission circuit may be configured to output the current based on a supply voltage; to increase an intensity of the current, from zero to an increased intensity that is less than or equal to a target value, by alternately repeating a first increase and a first decrease of the intensity of the current, in a first time interval; to decrease the intensity of the current, from the increased intensity to zero, by alternately repeating a second increase and a second decrease of the intensity of the current, in a second time interval.

公开(公告)号：US10332101B2

公开(公告)日：2019-06-25

申请号：US15854162

申请日：2017-12-26

Applicant: Samsung Electronics Co., Ltd.

Inventor： Sungwoo Lee ,  Youngjin Moon ,  Hyoungseok Oh

IPC: G06Q20/34 ,  H01F1/34 ,  H04B5/00 ,  H01F38/14

Abstract: A magnetic secure transmission (MST) device which generates an MST signal includes a first transmitter, a first coil that generates a first signal depending on an operation of the first transmitter, a second transmitter that operates at an operating frequency of the first transmitter, and a second coil that generates a second signal for offsetting or compensating for the first signal depending on an operation of the second transmitter. The MST signal is generated as the first signal and the second signal overlap each other.

公开(公告)号：US10734901B2

公开(公告)日：2020-08-04

申请号：US16028460

申请日：2018-07-06

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Hyoungseok Oh ,  Youngjin Moon

IPC: H02M3/158 ,  H02M3/335 ,  H04W4/80 ,  H04W52/00

Abstract: An electronic device includes a transmitter circuit, an inductive element, and a boost converter. The transmitter circuit outputs a current, which has a varying level, based on a supply voltage. The inductive element generates an output signal based on the current, such that wireless communication with an external device is performed. The boost converter boosts a system voltage to output the supply voltage. A voltage level of the supply voltage provided from the boost converter to the transmitter circuit based on the boosted system voltage is maintained to be equal to or higher than a reference level which is higher than a voltage level of the system voltage, regardless of a decrease in the voltage level of the system voltage.

公开(公告)号：US20190052315A1

公开(公告)日：2019-02-14

申请号：US15962453

申请日：2018-04-25

Applicant: Samsung Electronics Co., Ltd.

Inventor： Youngjin Moon ,  Hyoungseok Oh ,  Sungwoo Lee

IPC: H04B5/00 ,  G06K7/08 ,  G06K19/04 ,  G06K19/06 ,  G06Q20/32 ,  G06Q20/34 ,  G06Q20/36 ,  G06Q20/38

CPC classification number: H04B5/0056 ,  G06K7/084 ,  G06K19/042 ,  G06K19/06206 ,  G06Q20/322 ,  G06Q20/3278 ,  G06Q20/352 ,  G06Q20/36 ,  G06Q20/3829 ,  H04B5/0031 ,  H04B5/0075

Abstract: An electronic device may include a transmission circuit and an inductive element. The inductive element may be configured to generate a wireless communication signal based on a current. The transmission circuit may be configured to output the current based on a supply voltage; to increase an intensity of the current, from zero to an increased intensity that is less than or equal to a target value, by alternately repeating a first increase and a first decrease of the intensity of the current, in a first time interval; to decrease the intensity of the current, from the increased intensity to zero, by alternately repeating a second increase and a second decrease of the intensity of the current, in a second time interval.

公开(公告)号：US20180365681A1

公开(公告)日：2018-12-20

申请号：US15854162

申请日：2017-12-26

Applicant: Samsung Electronics Co., Ltd.

Inventor： Sungwoo LEE ,  Youngjin Moon ,  Hyoungseok Oh

IPC: G06Q20/34 ,  H01F1/34 ,  H01F38/14 ,  H04B5/00

CPC classification number: G06Q20/341 ,  H01F1/34 ,  H01F38/14 ,  H01F2038/143 ,  H04B5/0056 ,  H04B5/0075

Abstract: A magnetic secure transmission (MST) device which generates an MST signal includes a first transmitter, a first coil that generates a first signal depending on an operation of the first transmitter, a second transmitter that operates at an operating frequency of the first transmitter, and a second coil that generates a second signal for offsetting or compensating for the first signal depending on an operation of the second transmitter. The MST signal is generated as the first signal and the second signal overlap each other.