Patents by Inventor Min-Cheol Ha
Min-Cheol Ha has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 10978915Abstract: A wireless power transmission apparatus according to various embodiments of the present invention may comprise: a power provision circuit for providing direct current (DC) power; a first conductive pattern; a second conductive pattern; multiple first switches connected to one end of the first conductive pattern and one end of the second conductive pattern; multiple second switches connected to the other end of the first conductive pattern; multiple third switches connected to the other end of the second conductive pattern; and a control circuit, wherein the control circuit controls the multiple first switches and the multiple second switches to convert the DC power into first alternating current (AC) power and apply the first AC power to the first conductive pattern and control the multiple first switches and the multiple third switches to convert the DC power into second AC power and apply the second AC power to the second conductive pattern. Various other embodiments are possible.Type: GrantFiled: February 1, 2018Date of Patent: April 13, 2021Assignee: Samsung Electronics Co., Ltd.Inventors: Kwang-Seob Kim, Dong-Zo Kim, Ji-Won Kim, Keum-Su Song, Min-Cheol Ha, Jong-Chul Hong, Se-Hyun Cho
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Patent number: 10879747Abstract: Disclosed is an apparatus for transmitting wireless power including: a plurality of coils; a position-sensing circuit that determines a position of an electronic device charged by the apparatus; and a control circuit determines at least one coil corresponding to the determined position of the electronic device from among the plurality of coils and transmit wireless charging power through one coil selected from the at least one determined coil. Other embodiments can be applied.Type: GrantFiled: March 22, 2018Date of Patent: December 29, 2020Assignee: Samsung Electronics Co., Ltd.Inventors: Jong-Chul Hong, Kwang-Seob Kim, Dong-Zo Kim, Ji-Won Kim, Keum-Su Song, Min-Cheol Ha, Se-Hyun Cho
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Patent number: 10804728Abstract: An electronic device includes a battery, a power regulator electrically connected with the battery and including an input terminal and an output terminal, a connector electrically connected with the input terminal, a wireless power transmitting circuit electrically connected with the output terminal, a switch electrically connected between the connector and the wireless power transmitting circuit, and a controller configured to identify an approaching external electronic device or a wireless charging-related request, identify whether power is provided from an external power supply via the connector in response to the identification, in response to identifying that power is not provided from the external power supply, supply power from the battery via the power regulator to the wireless power transmitting circuit, and in response to identifying that power is provided from the external power supply, supply the power provided from the external power supply to the wireless power transmitting circuit via the switcType: GrantFiled: November 13, 2018Date of Patent: October 13, 2020Assignee: Samsung Electronics Co., Ltd.Inventors: Dong Zo Kim, Se Hyun Cho, Min Cheol Ha, Yong Sang Yun, Kwang Seob Kim, Ji Won Kim, Hye Won Kim, Chang Hak O, Kyung Woo Lim, Byeong Hyun Jang, Kuk Hwan Jung, Hyung Koo Chung
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Publication number: 20200006986Abstract: A wireless power transmission apparatus according to various embodiments of the present invention may comprise: a power provision circuit for providing direct current (DC) power; a first conductive pattern; a second conductive pattern; multiple first switches connected to one end of the first conductive pattern and one end of the second conductive pattern; multiple second switches connected to the other end of the first conductive pattern; multiple third switches connected to the other end of the second conductive pattern; and a control circuit, wherein the control circuit controls the multiple first switches and the multiple second switches to convert the DC power into first alternating current (AC) power and apply the first AC power to the first conductive pattern and control the multiple first switches and the multiple third switches to convert the DC power into second AC power and apply the second AC power to the second conductive pattern. Various other embodiments are possible.Type: ApplicationFiled: February 1, 2018Publication date: January 2, 2020Inventors: Kwang-Seob KIM, Dong-Zo KIM, Ji-Won KIM, Keum-Su SONG, Min-Cheol HA, Jong-Chul HONG, Se-Hyun CHO
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Patent number: 10425049Abstract: A wireless electric power transmitter for transmitting electric power for a charging function to a wireless electric power receiver is provided. The wireless electric power transmitter includes an electric power supply unit which supplies electric power; an amplifier which amplifies and outputs the electric power supplied from the electric power supply unit by a preset gain as a magnitude of measured impedance increases; and a transmitter which transmits the amplified electric power to the wireless electric power receiver.Type: GrantFiled: January 23, 2014Date of Patent: September 24, 2019Assignees: Samsung Electronics Co., Ltd, Korea Advanced Institute of Science and TechnologyInventors: Sung-Ku Yeo, Song-Cheol Hong, Duk-Ju Ahn, Gwang-Hyeon Jeong, Se-Ho Park, Min-Cheol Ha
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Publication number: 20190173290Abstract: A signal transmission and reception circuit is provided. The signal transmission and reception circuit includes a coil configured to receive power wirelessly supplied from the outside or output a specific signal wirelessly, a transmission and reception control module including a signal conversion switching circuit that is connected to the coil to rectify the wirelessly supplied power or convert a signal to be output and a driver that controls a switching state of the signal conversion switching circuit, and a filter configured to convert, the signal to be output, into a specific signal.Type: ApplicationFiled: February 11, 2019Publication date: June 6, 2019Inventors: Min Cheol HA, Se Ho PARK, Ki Hyun KIM, Ji Hye KIM, Kum Jong SUN, Woo Ram LEE
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Publication number: 20190148968Abstract: An electronic device includes a battery, a power regulator electrically connected with the battery and including an input terminal and an output terminal, a connector electrically connected with the input terminal, a wireless power transmitting circuit electrically connected with the output terminal, a switch electrically connected between the connector and the wireless power transmitting circuit, and a controller configured to identify an approaching external electronic device or a wireless charging-related request, identify whether power is provided from an external power supply via the connector in response to the identification, in response to identifying that power is not provided from the external power supply, supply power from the battery via the power regulator to the wireless power transmitting circuit, and in response to identifying that power is provided from the external power supply, supply the power provided from the external power supply to the wireless power transmitting circuit via the switcType: ApplicationFiled: November 13, 2018Publication date: May 16, 2019Inventors: Dong Zo KIM, Kwang Seob KIM, Ji Won KIM, Hye Won KIM, Chang Hak O, Kyung Woo LIM, Byeong Hyun JANG, Kuk Hwan JUNG, Hyung Koo CHUNG, Se Hyun CHO, Min Cheol HA, Yong Sang YUN
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Patent number: 10236724Abstract: A method of controlling a wireless power receiver. The method includes receiving, by a power receiver, power from a wireless power transmitter; receiving, from the wireless power transmitter, a time set value that is set for checking cross connection; in response to receiving the time set value, generating a power variation in the wireless power receiver by converting a load status from a first load status to a second load status; and maintaining the second load status for a time corresponding to the received time set value.Type: GrantFiled: September 14, 2017Date of Patent: March 19, 2019Assignee: Samsung Electronics Co., LtdInventors: Kyung-Woo Lee, Kang-Ho Byun, Chong-Min Lee, Hee-Won Jung, Min-Cheol Ha, Seung-Woo Han
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Publication number: 20180278099Abstract: Disclosed is an apparatus for transmitting wireless power including: a plurality of coils; a position-sensing circuit that determines a position of an electronic device charged by the apparatus; and a control circuit determines at least one coil corresponding to the determined position of the electronic device from among the plurality of coils and transmit wireless charging power through one coil selected from the at least one determined coil. Other embodiments can be applied.Type: ApplicationFiled: March 22, 2018Publication date: September 27, 2018Inventors: Jong-Chul HONG, Kwang-Seob KIM, Dong-Zo KIM, Ji-Won KIM, Keum-Su SONG, Min-Cheol HA, Se-Hyun CHO
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Patent number: 10056945Abstract: A leakage power processing method of an electronic device including a first conductive pattern that sends and receives a communication signal associated with a communication function, a second conductive pattern that is arranged adjacent to the first conductive pattern and sends and receives a power signal used for charging, and a communication hardware interface electrically connected with the first conductive pattern is provided. The leakage power processing method includes determining, by a processor of an electronic device, whether a specific power signal is induced through the second conductive pattern and forming, by the processor of the electronic device, a closed loop including the first conductive pattern if the specific power signal of a specific magnitude or greater is induced.Type: GrantFiled: January 23, 2017Date of Patent: August 21, 2018Assignee: Samsung Electronics Co., Ltd.Inventors: Dong Zo Kim, Kwang Seob Kim, Se Ho Park, Yu Su Kim, Han Seok Park, Keum Su Song, Ju Hyang Lee, Min Cheol Ha
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Publication number: 20180006486Abstract: A method of controlling a wireless power receiver. The method includes receiving, by a power receiver, power from a wireless power transmitter; receiving, from the wireless power transmitter, a time set value that is set for checking cross connection; in response to receiving the time set value, generating a power variation in the wireless power receiver by converting a load status from a first load status to a second load status; and maintaining the second load status for a time corresponding to the received time set value.Type: ApplicationFiled: September 14, 2017Publication date: January 4, 2018Inventors: Kyung-Woo Lee, Kang-Ho Byun, Chong-Min Lee, Hee-Won Jung, Min-Cheol Ha, Seung-Woo HAN
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Patent number: 9806554Abstract: A method for generating a load variation for detecting a wireless power receiving unit in wireless charging is provided. The method includes maintaining a switch connected to a dummy load in an ON state by the wireless power receiving unit, receiving wireless power from a wireless power transmitting unit, and, upon receiving the wireless power, switching the switch connected to the dummy load to an OFF state.Type: GrantFiled: June 5, 2014Date of Patent: October 31, 2017Assignee: Samsung Electronics Co., LtdInventors: Kyung-Woo Lee, Kang-Ho Byun, Chong-Min Lee, Hee-Won Jung, Min-Cheol Ha, Seung-Woo Han
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Publication number: 20170279495Abstract: A leakage power processing method of an electronic device including a first conductive pattern that sends and receives a communication signal associated with a communication function, a second conductive pattern that is arranged adjacent to the first conductive pattern and sends and receives a power signal used for charging, and a communication hardware interface electrically connected with the first conductive pattern is provided. The leakage power processing method includes determining, by a processor of an electronic device, whether a specific power signal is induced through the second conductive pattern and forming, by the processor of the electronic device, a closed loop including the first conductive pattern if the specific power signal of a specific magnitude or greater is induced.Type: ApplicationFiled: January 23, 2017Publication date: September 28, 2017Inventors: Dong Zo KIM, Kwang Seob KIM, Se Ho PARK, Yu Su KIM, Han Seok PARK, Keum Su SONG, Ju Hyang LEE, Min Cheol HA
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Patent number: 9379574Abstract: A method for controlling an abnormal state of a wireless Power Receiving Unit (PRU) is provided. The method includes measuring a temperature by a period shorter than a previous measurement period when a temperature measured by the wireless PRU in response to a transmission of power from a wireless Power Transmitting Unit (PTU) is higher than a temperature required to be monitored; determining whether the measured temperature is higher than a temperature at which a load switch connected to a charging unit is turned off if the measured temperature is equal to or higher than the temperature required to be monitored; and turning off the load switch if the measured temperature is higher than the temperature at which the load switch is turned off.Type: GrantFiled: May 5, 2014Date of Patent: June 28, 2016Assignee: Samsung Electronics Co., LtdInventors: Ho-Seong Lee, Kang-Ho Byun, Kyung-Woo Lee, Yu-Su Kim, Yun-Jeong Noh, Se-ho Park, Min-Cheol Ha
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Publication number: 20160149416Abstract: A signal transmission and reception circuit is provided. The signal transmission and reception circuit includes a coil configured to receive power wirelessly supplied from the outside or output a specific signal wirelessly, a transmission and reception control module including a signal conversion switching circuit that is connected to the coil to rectify the wirelessly supplied power or convert a signal to be output and a driver that controls a switching state of the signal conversion switching circuit, and a filter configured to convert, the signal to be output, into a specific signal.Type: ApplicationFiled: November 18, 2015Publication date: May 26, 2016Inventors: Min Cheol HA, Se Ho PARK, Ki Hyun KIM, Ji Hye KIM, Kum Jong SUN, Woo Ram LEE
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Publication number: 20140361738Abstract: A method for generating a load variation for detecting a wireless power receiving unit in wireless charging is provided. The method includes maintaining a switch connected to a dummy load in an ON state by the wireless power receiving unit, receiving wireless power from a wireless power transmitting unit, and, upon receiving the wireless power, switching the switch connected to the dummy load to an OFF state.Type: ApplicationFiled: June 5, 2014Publication date: December 11, 2014Inventors: Kyung-Woo LEE, Kang-Ho BYUN, Chong-Min LEE, Hee-Won JUNG, Min-Cheol HA, Seung-Woo HAN
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Publication number: 20140327393Abstract: A method for controlling an abnormal state of a wireless Power Receiving Unit (PRU) is provided. The method includes measuring a temperature by a period shorter than a previous measurement period when a temperature measured by the wireless PRU in response to a transmission of power from a wireless Power Transmitting Unit (PTU) is higher than a temperature required to be monitored; determining whether the measured temperature is higher than a temperature at which a load switch connected to a charging unit is turned off if the measured temperature is equal to or higher than the temperature required to be monitored; and turning off the load switch if the measured temperature is higher than the temperature at which the load switch is turned off.Type: ApplicationFiled: May 5, 2014Publication date: November 6, 2014Applicant: Samsung Electronics Co., Ltd.Inventors: Ho-Seong LEE, Kang-Ho BYUN, Kyung-Woo LEE, Yu-Su KIM, Yun-Jeong NOH, Se-ho PARK, Min-Cheol HA
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Publication number: 20140203772Abstract: A wireless electric power transmitter for transmitting electric power for a charging function to a wireless electric power receiver is provided. The wireless electric power transmitter includes an electric power supply unit which supplies electric power; an amplifier which amplifies and outputs the electric power supplied from the electric power supply unit by a preset gain as a magnitude of measured impedance increases; and a transmitter which transmits the amplified electric power to the wireless electric power receiver.Type: ApplicationFiled: January 23, 2014Publication date: July 24, 2014Applicants: Korea Advanced Institute of Science and Technology, Samsung Electronics Co., Ltd.Inventors: Sung-Ku YEO, Song-Cheol Hong, Duk-Ju Ahn, Gwang-Hyeon Jeong, Se-Ho Park, Min-Cheol Ha
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Patent number: RE49839Abstract: A method of controlling a wireless power receiver. The method includes receiving, by a power receiver, power from a wireless power transmitter; receiving, from the wireless power transmitter, a time set value that is set for checking cross connection; in response to receiving the time set value, generating a power variation in the wireless power receiver by converting a load status from a first load status to a second load status; and maintaining the second load status for a time corresponding to the received time set value.Type: GrantFiled: April 21, 2020Date of Patent: February 13, 2024Inventors: Kyung-Woo Lee, Kang-Ho Byun, Chong-Min Lee, Hee-Won Jung, Min-Cheol Ha, Seung-Woo Han