Patents by Inventor Hyung-gu Park
Hyung-gu Park 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: 10312709Abstract: A method of charging a battery by a charging system comprising a master charging circuit and N (N is a natural number) slave charging circuits. The method includes: sourcing a first current to a single-wired bus by the master charging circuit; absorbing (sinking) a second current from the single-wired bus by the N slave charging circuits connected to the single-wired bus; identifying a single-wired bus voltage formed on the single-wired bus at a particular time point by the master charging circuit; and identifying the number of slave charging circuits based on the single-wired bus voltage by the master charging circuit.Type: GrantFiled: July 18, 2017Date of Patent: June 4, 2019Assignee: Silicon Mitus, Inc.Inventors: Ho Jun Shin, Kang Yoon Lee, Kwang Muk Choi, Ii Kwon Jang, Han Suk Seo, Hyung Gu Park, Young Jun Park, Seong Jin Oh, Ju Hyun Park, Jung Yeon Kim
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Patent number: 9935666Abstract: A transceiver may include a reception (Rx) radio frequency (RF) part configured to process a received signal, a transmission (Tx) RF part configured to process a transmitted signal, and a phase lock loop (PLL) configured to provide a reception frequency to the reception RF part and provide a transmission frequency to the transmission RF part. The PLL may be controlled according to whether the reception RF part or the transmission RF part is on. In addition, a transceiver may include quenching waveform generator (QWGs) to control quenching waveforms of the RF parts corresponding to a plurality of antennas. The quenching waveforms may be generated respectively by VCOs operating at a same frequency. The QWGs may control the VCOs such that the quenching waveforms do not overlap.Type: GrantFiled: April 4, 2017Date of Patent: April 3, 2018Assignees: Samsung Electronics Co., Ltd., Sungkyunkwan University Foundation for Corporate CollaborationInventors: Jaesup Lee, Hong Jin Kim, Hyung Gu Park, Kang Yoon Lee
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Patent number: 9923554Abstract: A wireless power transmitter includes an amplifier configured to amplify a power; a transmitter configured to resonate the power amplified by the amplifier; and a reference signal provider configured to provide a reference signal to the amplifier and change a frequency of the reference signal.Type: GrantFiled: June 29, 2016Date of Patent: March 20, 2018Assignees: Samsung Electro-Mechanics Co., Ltd., University of Seoul Industry Cooperation FoundationInventors: Byung Joo Hong, Je Hyuk Ryu, Hyung Gu Park, Joong Ho Choi, Hong Jin Kim, Joo Young Lee, Dong Hyeon Seo, Young Jun Park, Jong Woo Lee, Kang Yoon Lee
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Publication number: 20180026467Abstract: A method of charging a battery by a charging system comprising a master charging circuit and N (N is a natural number) slave charging circuits. The method includes: sourcing a first current to a single-wired bus by the master charging circuit; absorbing (sinking) a second current from the single-wired bus by the N slave charging circuits connected to the single-wired bus; identifying a single-wired bus voltage formed on the single-wired bus at a particular time point by the master charging circuit; and identifying the number of slave charging circuits based on the single-wired bus voltage by the master charging circuit.Type: ApplicationFiled: July 18, 2017Publication date: January 25, 2018Inventors: Ho Jun SHIN, Kang Yoon LEE, Kwang Muk CHOI, Il Kwon JANG, Han Suk SEO, Hyung Gu PARK, Young Jun PARK, Seong Jin OH, Ju Hyun PARK, Jung Yeon KIM
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Patent number: 9843251Abstract: A rectifier includes: a rectifying circuit configured to rectify alternating current (AC) power into direct current (DC) power through a switching operation; a driver configured to apply a switching signal to the rectifying circuit; and a signal modulator configured to select a parameter from among parameters of the switching signal based on a frequency of the switching signal, and adjust the selected parameter.Type: GrantFiled: June 10, 2016Date of Patent: December 12, 2017Assignees: Samsung Electro-Mechanics Co., Ltd., University of Seoul Industry Cooperation FoundationInventors: Byung Joo Hong, Jong Woo Lee, Hyung Gu Park, Young Jun Park, Seong Jin Oh, Kang Yoon Lee, Joong Ho Choi, Hong Jin Kim, Je Hyuk Ryu, Jung Yeon Kim
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Patent number: 9831719Abstract: The present invention relates to an apparatus and a method for transmitting wireless power, and more particularly, to an apparatus and a method for transmitting wireless power that rapidly and precisely adjusts impedance so as to transmit desired power. Disclosed an apparatus for transmitting wireless power that performs wireless power transmission, including: an oscillator; an amplifier; an impedance matcher including a matching network which adjusts impedance according to a digital control signal and an analog signal, a sensor, a digital controller which outputs a digital control signal, and generates an analog control start signal when adjustment of the impedance by the digital control signal is completed, and an analog controller which outputs the analog control signal, and a transmitting antenna which radiates the magnetic field by using the transmission power.Type: GrantFiled: April 29, 2014Date of Patent: November 28, 2017Assignee: Intellectual Discovery Co., Ltd.Inventors: Kang Yoon Lee, Hyung Gu Park, Jae Hyeong Jang, Ji Hun Kang
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Patent number: 9774274Abstract: An active rectifier and a wireless power reception apparatus using the same are disclosed herein. The active rectifier includes first and fourth switches, second and third switches, and a synchronization control unit. The first and fourth switches are turned on while the voltage of an alternating current (AC) input is negative, and apply the current of the AC input to a rectifying capacitor. The second and third switches are turned on while a voltage of the AC input is positive, and apply the current of the AC input to the rectifying capacitor. The synchronization control unit compensates for the delay time of the comparator for detecting zero-crossing of the AC input so as to switch the first to fourth switches.Type: GrantFiled: March 13, 2015Date of Patent: September 26, 2017Assignee: Research & Business Foundation Sungkyunkwan UniversityInventors: Kang Yoon Lee, Jae Hyung Jang, Hyung Gu Park, Joo Young Chun
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Publication number: 20170207807Abstract: A transceiver may include a reception (Rx) radio frequency (RF) part configured to process a received signal, a transmission (Tx) RF part configured to process a transmitted signal, and a phase lock loop (PLL) configured to provide a reception frequency to the reception RF part and provide a transmission frequency to the transmission RF part. The PLL may be controlled according to whether the reception RF part or the transmission RF part is on. In addition, a transceiver may include quenching waveform generator (QWGs) to control quenching waveforms of the RF parts corresponding to a plurality of antennas. The quenching waveforms may be generated respectively by VCOs operating at a same frequency. The QWGs may control the VCOs such that the quenching waveforms do not overlap.Type: ApplicationFiled: April 4, 2017Publication date: July 20, 2017Applicants: SAMSUNG ELECTRONICS CO., LTD., Sungkyunkwan University Foundation for Corporate CollaborationInventors: Jaesup LEE, Hong Jin KIM, Hyung Gu PARK, Kang Yoon LEE
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Patent number: 9647609Abstract: A transceiver may include a reception (Rx) radio frequency (RF) part configured to process a received signal, a transmission (Tx) RF part configured to process a transmitted signal, and a phase lock loop (PLL) configured to provide a reception frequency to the reception RF part and provide a transmission frequency to the transmission RF part. The PLL may be controlled according to whether the reception RF part or the transmission RF part is on. In addition, a transceiver may include quenching waveform generator (QWGs) to control quenching waveforms of the RF parts corresponding to a plurality of antennas. The quenching waveforms may be generated respectively by VCOs operating at a same frequency. The QWGs may control the VCOs such that the quenching waveforms do not overlap.Type: GrantFiled: May 10, 2013Date of Patent: May 9, 2017Assignees: Samsung Electronics Co., Ltd., SUNGKYUNKWAN UNIVERSITY FOUNDATION FOR CORPORATE COLLABORATIONInventors: Jaesup Lee, Hong Jin Kim, Hyung Gu Park, Kang Yoon Lee
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Publication number: 20170118722Abstract: A wireless power transmitter includes an amplifier configured to amplify a power; a transmitter configured to resonate the power amplified by the amplifier; and a reference signal provider configured to provide a reference signal to the amplifier and change a frequency of the reference signal.Type: ApplicationFiled: June 29, 2016Publication date: April 27, 2017Applicants: SAMSUNG ELECTRO-MECHANICS CO., LTD., University of Seoul Industry Cooperation FoundationInventors: Byung Joo HONG, Je Hyuk RYU, Hyung Gu PARK, Joong Ho CHOI, Hong Jin KIM, Joo Young LEE, Dong Hyeon SEO, Young Jun PARK, Jong Woo LEE, Kang Yoon LEE
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Publication number: 20160373023Abstract: A rectifier includes: a rectifying circuit configured to rectify alternating current (AC) power into direct current (DC) power through a switching operation; a driver configured to apply a switching signal to the rectifying circuit; and a signal modulator configured to select a parameter from among parameters of the switching signal based on a frequency of the switching signal, and adjust the selected parameter.Type: ApplicationFiled: June 10, 2016Publication date: December 22, 2016Applicants: Samsung Electro-Mechanics Co., Ltd., University of Seoul Industry Cooperation FoundationInventors: Byung Joo HONG, Jong Woo LEE, Hyung Gu PARK, Young Jun PARK, Seong Jin OH, Kang Yoon LEE, Joong Ho CHOI, Hong Jin KIM, Je Hyuk RYU, Jung Yeon KIM
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Patent number: 9413369Abstract: A phase-locked loop (PLL) includes a counter configured to measure voltage-controlled oscillator (VCO) information of an oscillator during a mask time, and a frequency tuner configured to tune a frequency of the oscillator to a target frequency, based on a comparison result obtained by comparing the VCO information to target frequency information.Type: GrantFiled: January 20, 2015Date of Patent: August 9, 2016Assignee: Samsung Electronics Co., Ltd.Inventors: Seong Joong Kim, Seok Ju Yun, Young Jun Hong, Hyung Gu Park, Kang Yoon Lee
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Publication number: 20150263534Abstract: An active rectifier and a wireless power reception apparatus using the same are disclosed herein. The active rectifier includes first and fourth switches, second and third switches, and a synchronization control unit. The first and fourth switches are turned on while the voltage of an alternating current (AC) input is negative, and apply the current of the AC input to a rectifying capacitor. The second and third switches are turned on while a voltage of the AC input is positive, and apply the current of the AC input to the rectifying capacitor. The synchronization control unit compensates for the delay time of the comparator for detecting zero-crossing of the AC input so as to switch the first to fourth switches.Type: ApplicationFiled: March 13, 2015Publication date: September 17, 2015Applicant: Research & Business Foundation SUNGKYUNKWAN UNIVERSITYInventors: Kang Yoon LEE, Jae Hyung JANG, Hyung Gu PARK, Joo Young CHUN
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Publication number: 20150207514Abstract: A phase-locked loop (PLL) includes a counter configured to measure voltage-controlled oscillator (VCO) information of an oscillator during a mask time, and a frequency tuner configured to tune a frequency of the oscillator to a target frequency, based on a comparison result obtained by comparing the VCO information to target frequency information.Type: ApplicationFiled: January 20, 2015Publication date: July 23, 2015Applicants: Samsung Electronics Co., Ltd., Research & Business Foundation Sungkyunkwan UniversityInventors: Seong Joong KIM, Seok Ju YUN, Young Jun HONG, Hyung Gu PARK, Kang Yoon LEE
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Publication number: 20140319923Abstract: The present invention relates to an apparatus and a method for transmitting wireless power, and more particularly, to an apparatus and a method for transmitting wireless power that rapidly and precisely adjusts impedance so as to transmit desired power. Disclosed an apparatus for transmitting wireless power that performs wireless power transmission, including: an oscillator; an amplifier; an impedance matcher including a matching network which adjusts impedance according to a digital control signal and an analog signal, a sensor, a digital controller which outputs a digital control signal, and generates an analog control start signal when adjustment of the impedance by the digital control signal is completed, and an analog controller which outputs the analog control signal, and a transmitting antenna which radiates the magnetic field by using the transmission power.Type: ApplicationFiled: April 29, 2014Publication date: October 30, 2014Applicant: INTELLECTUAL DISCOVERY CO., LTD.Inventors: Kang Yoon LEE, Hyung Gu PARK, Jae Hyeong JANG, Ji Hun KANG
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Publication number: 20140035684Abstract: There are provided a control circuit for a digitally controlled oscillator and a control apparatus for a digitally controlled oscillator using the same. The control circuit for a digitally controlled oscillator includes: a peak detection circuit detecting amplitude of a signal output from the digitally controlled oscillator; and a transconductance control circuit comparing an output of the peak detection circuit with a predetermined reference signal to control a transconductance value of a negative transconductance circuit included in the digitally controlled oscillator.Type: ApplicationFiled: November 13, 2012Publication date: February 6, 2014Applicants: RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY, SAMSUNG ELECTRO-MECHANICS CO., LTD.Inventors: Yoo Sam NA, Kang Yoon LEE, Dong Su LEE, Hyung Gu PARK, Hong Jin KIM, Gyu Suck KIM, Young Gun PU
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Publication number: 20140009317Abstract: There are provided an analog-to-digital signal conversion method and apparatus therefor, and a digital phase locked loop circuit including the same. The analog-to-digital signal conversion method may include: generating a first digital output signal having N number of bits by comparing each of N number of delay signals detected from output terminals of N number of delay cells with a reference signal; generating a second digital output signal by comparing an auxiliary delay signal generated by an (N+1)th delay cell with the reference signal; and determining a change in a delay time of each of the N number of delay cells based on the first digital output signal and the second digital output signal.Type: ApplicationFiled: September 14, 2012Publication date: January 9, 2014Inventors: Yoo Sam NA, Kang Yoon Lee, Young Gun Pu, Hyung Gu Park, Hong Jin Kim, Yoo Hwan Kim, Dong Su Lee
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Patent number: 8618972Abstract: There are provided an analog-to-digital signal conversion method and apparatus therefor, and a digital phase locked loop circuit including the same. The analog-to-digital signal conversion method may include: generating a first digital output signal having N number of bits by comparing each of N number of delay signals detected from output terminals of N number of delay cells with a reference signal; generating a second digital output signal by comparing an auxiliary delay signal generated by an (N+1)th delay cell with the reference signal; and determining a change in a delay time of each of the N number of delay cells based on the first digital output signal and the second digital output signal.Type: GrantFiled: September 14, 2012Date of Patent: December 31, 2013Assignees: Samsung Electro-Mechanics Co., Ltd., Research & Business Foundation Sungkyunkwan UniversityInventors: Yoo Sam Na, Kang Yoon Lee, Young Gun Pu, Hyung Gu Park, Hong Jin Kim, Yoo Hwan Kim, Dong Su Lee
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Publication number: 20130316661Abstract: A transceiver may include a reception (Rx) radio frequency (RF) part configured to process a received signal, a transmission (Tx) RF part configured to process a transmitted signal, and a phase lock loop (PLL) configured to provide a reception frequency to the reception RF part and provide a transmission frequency to the transmission RF part. The PLL may be controlled according to whether the reception RF part or the transmission RF part is on. In addition, a transceiver may include quenching waveform generator (QWGs) to control quenching waveforms of the RF parts corresponding to a plurality of antennas. The quenching waveforms may be generated respectively by VCOs operating at a same frequency. The QWGs may control the VCOs such that the quenching waveforms do not overlap.Type: ApplicationFiled: May 10, 2013Publication date: November 28, 2013Applicants: Sungkyunkwan University Foundation for Corporate Collaboration, Samsung Electronics Co., Ltd.Inventors: Jaesup LEE, Hong Jin KIM, Hyung Gu PARK, Kang Yoon LEE
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Publication number: 20060132654Abstract: Disclosed is a computer system having a computer and a monitor connected to the computer for displaying an image from the computer thereon. The monitor has an input unit for each user to set and select the display environment, a profile storing unit for storing therein the display environment information set by each user, and a monitor control unit for storing the display environment information set by each user through manipulation of the input unit in the profile storing unit and outputting the display environment information of each user to the computer. The computer has a storage unit for storing the display environment information by each user therein, and a computer control unit for storing the display environment information input by each user from the monitor in the storage unit.Type: ApplicationFiled: October 26, 2005Publication date: June 22, 2006Inventors: Han-sung Kim, Hyung-gu Park, Dong-hun Lee, Seon-Hwa Min