公开(公告)号：US10784708B2

公开(公告)日：2020-09-22

申请号：US16204363

申请日：2018-11-29

Applicant: Samsung Electronics Co., Ltd.

Inventor： Kyung-Woo Lee ,  Hee-Won Jung

IPC: H02J7/00 ,  H02J7/02 ,  H02J50/80 ,  H02J50/12 ,  H02J7/04 ,  H04B5/00 ,  H02J50/40

Abstract: A method for transmitting wireless power in a wireless charging system and a wireless power transmitting unit (PTU) and provided. The method for transmitting wireless power in a wireless charging system includes receiving information related to a voltage from each of a plurality of power receiving units (PRUs); identifying a voltage ratio of each of the plurality of PRUs based on the received information, wherein the voltage ratio is a current voltage relative to a first voltage; determining a PRU among the plurality of PRUs based on the identified voltage ratio; and adjusting transmission power according to a voltage setting value of the determined PRU.

公开(公告)号：US20200185976A1

公开(公告)日：2020-06-11

申请号：US16791631

申请日：2020-02-14

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hyuk-Choon Kwon ,  Nam-Yun Kim ,  Ho-Dong Kim ,  Kang-Ho Byun ,  Kyung-Woo Lee ,  Hee-Won Jung

IPC: H02J50/60 ,  H04B5/00

Abstract: A method and apparatus for controlling a wireless power transmitter configured to transmit power to a wireless power receiver is provided. The method includes receiving a first signal from the wireless power receiver, wherein the first signal comprises load detection indication bits, detecting a change in load of the wireless power transmitter caused by placement of the wireless power receiver in a charging area of the wireless power transmitter, based on the load detection indication bits, and determining whether to transmit a second signal to the wireless power receiver based on detecting the change in load of the wireless power transmitter.

公开(公告)号：US20200169095A1

公开(公告)日：2020-05-28

申请号：US16774901

申请日：2020-01-28

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hyuk-Choon KWON ,  Nam-Yun Kim ,  Hee-Won Jung ,  Soon-Yeon Jung

IPC: H02J7/00 ,  H02J50/12 ,  H02J50/40 ,  H02J50/80

Abstract: A method for controlling a wireless power transmitter and a wireless power transmitter are provided. The method includes applying a detection power for detecting a change in a load impedance of the wireless power transmitter; detecting the change in the load impedance of the wireless power transmitter; receiving, from a wireless power receiver, a first signal within a preset time period after detecting the change in the load impedance; determining whether a reception intensity of the first signal is greater than a threshold; and based on determining that the reception intensity of the first signal is less than or equal to the threshold, stopping a communication with the wireless power receiver.

公开(公告)号：US10587123B2

公开(公告)日：2020-03-10

申请号：US15682204

申请日：2017-08-21

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hyuk-Choon Kwon ,  Nam-Yun Kim ,  Ho-Dong Kim ,  Kang-Ho Byun ,  Kyung-Woo Lee ,  Hee-Won Jung

IPC: H02J5/00 ,  H04B5/00 ,  H02J50/60 ,  H02J7/02

Abstract: A method and apparatus for controlling a wireless power transmitter configured to transmit power to a wireless power receiver is provided. The method includes receiving a first signal from the wireless power receiver, wherein the first signal comprises load detection indication bits, detecting a change in load of the wireless power transmitter caused by placement of the wireless power receiver in a charging area of the wireless power transmitter, based on the load detection indication bits, and determining whether to transmit a second signal to the wireless power receiver based on detecting the change in load of the wireless power transmitter.

公开(公告)号：US10454318B2

公开(公告)日：2019-10-22

申请号：US16038843

申请日：2018-07-18

Applicant: Samsung Electronics Co., Ltd.

Inventor： Kyung-Woo Lee ,  Hyuk-Choon Kwon ,  Kang-Ho Byun ,  Hee-Won Jung

IPC: H02J50/40 ,  H02J50/80 ,  H02J50/12 ,  H02J7/02

Abstract: A control method of a wireless power receiving unit for receiving charging power from a wireless power transmitting unit to perform wireless charging is provided. The control method includes receiving the charging power from the wireless power transmitting unit; detecting a change in a wireless charging environment; generating a message notifying of the change in the wireless charging environment; and transmitting the message notifying of the change in the wireless charging environment to the wireless power transmitting unit.

公开(公告)号：US10348134B2

公开(公告)日：2019-07-09

申请号：US16042603

申请日：2018-07-23

Applicant: Samsung Electronics Co., Ltd.

Inventor： Kyung-Woo Lee ,  Kang-Ho Byun ,  Ho-Seong Lee ,  Hee-Won Jung

IPC: H01M10/44 ,  H01M10/46 ,  H02J50/12 ,  H02J50/80 ,  H02J50/60 ,  H02J7/02 ,  H04B5/00 ,  H02J5/00 ,  H02J7/00

Abstract: Methods and apparatuses for performing wireless charging are disclosed. One of the disclosed apparatuses is a wireless power receiver which can receive charging power from a wireless power transmitter. When the wireless power receiver receives, through a power receiving circuit, from a wireless power transmitter, a first power for initiating a communication unit; establishes a communication connection with the wireless power transmitter while receiving the first power; performs, by the communication unit, communication with the wireless power transmitter; receives, through the power receiving circuit, from the wireless power transmitter, a second power for charging; transmits, by the communication unit, to the wireless power transmitter, a message indicating a mode transition of the communication unit; terminates the communication with the wireless power transmitter; performs the mode transition for a time period while receiving the second power; and resumes the communication with the wireless power transmitter, after performing the mode transition.

公开(公告)号：US10135283B2

公开(公告)日：2018-11-20

申请号：US13922961

申请日：2013-06-20

Applicant: Samsung Electronics Co., Ltd.

Inventor： Kang-Ho Byun ,  Kyung-Woo Lee ,  Hyuk-Choon Kwon ,  Nam-Yun Kim ,  Hee-Won Jung

IPC: H02J7/00 ,  H02J7/02 ,  H02J50/90 ,  H02J5/00 ,  H04B5/00 ,  H02J50/40 ,  H02J50/12 ,  H02J50/80

Abstract: Methods and apparatus are provided for controlling power transmission in a power transmitter against overvoltage at a power receiver. The power transmitter receives a subscription request to subscribe to a wireless power network, from the power receiver. It is determined whether power transmission is available for the power receiver. The power receiver is informed that the power transmission is beginning, when the power transmission is available. The transmission power is increased and transmitted. It is determined whether a stop request to stop increasing voltage is received at the power transmitter from the power receiver. The increase of the transmission power is stopped when the stop request is received at the power transmitter. Charging of the power receiver is started by transmitting a start charging command from the power transmitter to the power receiver.

公开(公告)号：US10069348B2

公开(公告)日：2018-09-04

申请号：US14265861

申请日：2014-04-30

Applicant: Samsung Electronics Co., Ltd.

Inventor： Kang-Ho Byun ,  Kyung-Woo Lee ,  Ho-Seong Lee ,  Hyuk-Choon Kwon ,  Soo-Yeon Jung ,  Hee-Won Jung

IPC: H01F38/00 ,  H02J50/80 ,  H02J7/02 ,  H02J50/12 ,  H02J50/40 ,  H02J50/60 ,  H02J17/00 ,  H04B5/00 ,  H04W76/14 ,  H02J7/00 ,  H02J5/00

Abstract: A control method for transmitting charging power to a wireless power receiver in a wireless power transmitter is provided. The control method includes receiving a Power Transmission Unit (PTU) searching signal for searching for a wireless power transmitter, from the wireless power receiver; obtaining information about an identifier of a signal in a communication scheme used by the wireless power receiver; and exchanging signals with the wireless power receiver based on the information about the identifier of the signal in the communication scheme used by the wireless power receiver.

公开(公告)号：US09966802B2

公开(公告)日：2018-05-08

申请号：US13937793

申请日：2013-07-09

Applicant: Samsung Electronics Co., Ltd.

Inventor： Kyung-Woo Lee ,  Kang-Ho Byun ,  Hee-Won Jung

IPC: H02J7/00 ,  H02J50/90 ,  H02J50/60 ,  H02J50/12 ,  H02J50/40 ,  H02J7/02 ,  H02J50/80 ,  G01R31/00

CPC classification number: H02J50/90 ,  G01R31/00 ,  H02J7/025 ,  H02J50/12 ,  H02J50/40 ,  H02J50/60 ,  H02J50/80

Abstract: A method and apparatus for transmitting charging power to a wireless power receiver. The method includes detecting the wireless power receiver by applying different detection powers with different power levels; applying a driving power to drive the detected wireless power receiver; receiving a request signal for communication from the detected wireless power receiver using the driving power; determining whether or not to subscribe the detected wireless power receiver to a wireless power network; transmitting, to the detected wireless power receiver, a response signal to the request signal for communication, the response signal indicating whether or not the detected wireless power receiver is subscribed to the wireless power network; and transmitting charging power to the detected wireless power receiver, when the detected wireless power receiver is subscribed to the wireless power network.

公开(公告)号：US09860661B2

公开(公告)日：2018-01-02

申请号：US15049640

申请日：2016-02-22

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hee-Won Jung ,  Jun-Ho Koh ,  Dong-Wook Kwon

IPC: H04R29/00 ,  H04W4/04 ,  H04L29/08 ,  H04L29/06 ,  G10L15/26 ,  G10L21/10 ,  G10L25/69 ,  H04W4/20 ,  G06F3/16 ,  G10L19/018

CPC classification number: H04R29/004 ,  G06F3/167 ,  G10L15/26 ,  G10L19/018 ,  G10L21/10 ,  G10L25/69 ,  H04L67/04 ,  H04L67/18 ,  H04L67/20 ,  H04L67/38 ,  H04R2499/11 ,  H04W4/04 ,  H04W4/043 ,  H04W4/20

Abstract: A method and an apparatus are provided for providing additional information service in a mobile communication terminal. A microphone receives a sound signal including an audible frequency band and an inaudible frequency band. Additional information related to the service is detected in the inaudible frequency band included in the sound signal. The detected additional information is extracted from the sound signal. Data for providing the service is acquired based on the extracted additional information. A service screen is displayed based on the acquired data.