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公开(公告)号：US11303135B2
公开(公告)日：2022-04-12
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
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.
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公开(公告)号：US11146091B2
公开(公告)日：2021-10-12
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 , Soo-Yeon Jung
Abstract: A method for controlling a wireless power transmitter is provided herein. The method includes outputting a first 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; outputting a second power for communicating with a wireless power receiver; receiving, from the 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 less than or equal to a threshold; and based on determining that the reception intensity of the first signal is less than or equal to the threshold, excluding the wireless power receiver from a wireless power network of the wireless power transmitter, the wireless power receiver being outside of the charging range of the wireless power transmitter.
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公开(公告)号：US11128182B2
公开(公告)日：2021-09-21
申请号：US16694478
申请日：2019-11-25
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: H02J50/80 , H02J7/02 , H02J50/12 , H02J50/40 , H02J50/60 , H04W76/14 , H04B5/00 , H02J5/00 , H02J7/00
Abstract: Disclosed is a control method for transmitting charging power to a wireless power receiver in a wireless power transmitter, including receiving an advertisement signal from a wireless power receiver, the advertisement signal including a handle value and a preset universally unique identifier (UUID), identifying a value assigned to a characteristic by adding a predetermined number to the handle value, transmitting a connection request signal to the wireless power receiver for establishing a communication connection with the wireless power receiver, in response to the advertisement signal, receiving, from the wireless power receiver, static information of the wireless power receiver over the communication connection, and transmitting, based on the static information, a control signal including permission information to the wireless power receiver.
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公开(公告)号：US11108279B2
公开(公告)日：2021-08-31
申请号：US16799355
申请日：2020-02-24
Applicant: Samsung Electronics Co., Ltd.
Inventor： Kyung-Woo Lee , Hee-Won Jung
Abstract: A method and an apparatus are provided for determining a cross connection during wireless charging. The method includes transmitting a first power to a plurality of wireless power receivers, based on first voltage setting information of a first wireless power receiver from among the plurality of wireless power receivers; determining to identify whether the wireless power transmitter is cross-connected with a second wireless power receiver from among the plurality of wireless power receivers; receiving second voltage setting information from the second wireless power receiver, while transmitting the first power to the plurality of wireless power receivers; transmitting a second power the plurality of wireless power receivers based on the second voltage setting information of the second wireless power receiver; and receiving measured voltage information from the second wireless power receiver, while transmitting the second power to the plurality of wireless power receivers.
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公开(公告)号：US10944294B2
公开(公告)日：2021-03-09
申请号：US16852844
申请日：2020-04-20
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Kyung-Woo Lee , Keum-Su Song , Hee-Won Jung
Abstract: A method of transmitting a signal by a wireless power transmitter in a wireless charging system, wireless power transmitter, and a wireless power receiver are provided. The method includes receiving, from a wireless power transmitter, a first beacon power for a first duration time in every first period; receiving, from the wireless power transmitter, a second beacon power for a second duration time in every second period; if the wireless power receiver determines that an extension of the second beacon power is required, generating load changes while receiving the second beacon power for the second duration time; in response to the generated load changes, continually receiving, from the wireless power transmitter, the second beacon power until a predetermined third duration time, wherein the predetermined third duration time is determined before the second beacon power is transmitted by the wireless power transmitter; and transmitting an advertisement signal to the wireless power transmitter while receiving the second beacon power for the predetermined third duration time.
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Patent Agency Ranking
公开(公告)号：US10763707B2
公开(公告)日：2020-09-01
申请号：US15945378
申请日：2018-04-04
Applicant: Samsung Electronics Co., Ltd.
Inventor： Kyung-Woo Lee , Kang-Ho Byun , Hee-Won Jung
Abstract: A control method of a wireless power transmitter and a wireless power transmitter. The method includes transmitting a first power with a first cycle; transmitting a second power with a second cycle, wherein the second cycle is greater than the first cycle; when a wireless power receiver is placed within a charging area and is detected by the first power, upon detecting the wireless power receiver by the first power, transmitting a third power to drive the wireless power receiver to transmit a search signal to the wireless power transmitter; and when the wireless power receiver is placed within the charging area and is not detected by the first power, using the second power to detect the wireless power receiver and drive the wireless power receiver to transmit the search signal to the wireless power transmitter.
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公开(公告)号：US20200251933A1
公开(公告)日：2020-08-06
申请号：US16852844
申请日：2020-04-20
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Kyung-Woo Lee , Keum-Su Song , Hee-Won Jung
Abstract: A method of transmitting a signal by a wireless power transmitter in a wireless charging system, wireless power transmitter, and a wireless power receiver are provided. The method includes receiving, from a wireless power transmitter, a first beacon power for a first duration time in every first period; receiving, from the wireless power transmitter, a second beacon power for a second duration time in every second period; if the wireless power receiver determines that an extension of the second beacon power is required, generating load changes while receiving the second beacon power for the second duration time; in response to the generated load changes, continually receiving, from the wireless power transmitter, the second beacon power until a predetermined third duration time, wherein the predetermined third duration time is determined before the second beacon power is transmitted by the wireless power transmitter; and transmitting an advertisement signal to the wireless power transmitter while receiving the second beacon power for the predetermined third duration time.
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公开(公告)号：US20200235609A1
公开(公告)日：2020-07-23
申请号：US16840765
申请日：2020-04-06
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Kang-Ho Byun , Se-Ho Park , Hae-Young Jun , Hee-Won Jung
Abstract: Methods and apparatuses are provided for controlling power transmission in a power transmitter. Voltage information including a minimum voltage, a maximum voltage, and a first voltage, is received from each of a plurality of power receivers. Power is transmitted to the plurality of power receivers based on the voltage information. A respective report about a power reception condition is received from each of the plurality of power receivers while transmitting the power. Each respective report includes a measured voltage at a corresponding power receiver of the plurality of power receivers. A power receiver is selected from among the plurality of power receivers based on the received reports. An amount of the power is adjusted by reducing a difference between a first voltage of the selected power receiver and a measured voltage of the selected power receiver.
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公开(公告)号：US10547192B2
公开(公告)日：2020-01-28
申请号：US16129345
申请日：2018-09-12
Applicant: Samsung Electronics Co., Ltd.
Inventor： Hyuk-Choon Kwon , Nam-Yun Kim , Hee-Won Jung , Soo-Yeon Jung
Abstract: A wireless power transmitter configured to transmit power to a wireless power receiver and a method for controlling the wireless power transmitted 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, wherein the first signal includes a field for a load impedance detection; determining whether the detected change corresponds to the field of the first signal; determining whether a reception intensity of the first signal is greater than a threshold; and based on a determination that the detected change corresponds to the field of the first signal and the reception intensity of the first signal is greater than the threshold, transmitting, to the wireless power receiver, a second signal to form a communication connection with the wireless power receiver.
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公开(公告)号：US10509989B2
公开(公告)日：2019-12-17
申请号：US16111967
申请日：2018-08-24
Applicant: Samsung Electronics Co., Ltd.
Inventor： Hyun-Soo Kim , Seong-Taek Hwang , Sang-Wook Oh , Sang-Ho Kim , Yun-Je Oh , Hee-Won Jung , Sung-Cheol Kim
Abstract: A method and an apparatus for recognizing characters using an image are provided. A camera is activated according to a character recognition request and a preview mode is set for displaying an image photographed through the camera in real time. An auto focus of the camera is controlled and an image having a predetermined level of clarity is obtained for character recognition from the images obtained in the preview mode. The image for character recognition is character-recognition-processed so as to extract recognition result data. A final recognition character row is drawn that excludes non-character data from the recognition result data. A first word is combined including at least one character of the final recognition character row and a predetermined maximum number of characters. A dictionary database that stores dictionary information on various languages using the first word is searched, so as to provide the user with the corresponding word.
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