Patents by Inventor Eun-seok Park

Eun-seok 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).

  • Method and apparatus of tracking of resonant impedance in resonance power transfer system
    Patent number: 8704534
    Abstract: A resonance power transfer system and a method for tracking resonant impedance in the resonance power transfer system are provided. An apparatus for tracking resonant impedance in a resonance power transfer system may include: a load sensor configured to detect the impedance of a load connected to a target device that receives resonance power; a target reflection signal detector configured to detect a reflection signal corresponding to the resonance power; a target impedance tracking unit configured to track the resonant impedance by adjusting a determination factor of a resonant frequency; and a target control unit configured to control the tracking of the resonant impedance based on whether there is a change of the impedance of the load, the reflection signal is detected, or both.
    Type: Grant
    Filed: August 16, 2011
    Date of Patent: April 22, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Nam Yun Kim, Sang Wook Kwon, Eun Seok Park, Young Tack Hong, Young Ho Ryu
  • Resonance power generation apparatus
    Patent number: 8674557
    Abstract: Provided are a resonance power generation apparatus and method for wireless power transmission. The resonance power generation apparatus may include a voltage controller to receive an input of an alternating current (AC) signal of a first frequency band and to output a direct current (DC) voltage having a constant level, a power converter to separate the DC voltage into a voltage waveform and a current waveform by a switching pulse signal of a second frequency band, and a resonance power generator to generate an AC resonance power from the voltage waveform and the current waveform.
    Type: Grant
    Filed: April 5, 2011
    Date of Patent: March 18, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Nam Yun Kim, Eun Seok Park, Sang Wook Kwon, Young Tack Hong, Young Ho Ryu
  • Apparatus for wireless power transmission using high Q low frequency near magnetic field resonator
    Patent number: 8653909
    Abstract: An apparatus for wireless power transmission is disclosed. According to an exemplary aspect, the wireless power transmission apparatus includes a high Q low frequency near magnetic field resonator having characteristics of a metamaterial. Accordingly, manufacturing of a compact power supply capable of wirelessly supplying power to mobile communication terminals or multimedia terminals is possible. By using a zeroth-order resonator with a DNG or ENG structure, a small-sized power supply with a simple configuration may be manufactured.
    Type: Grant
    Filed: November 17, 2009
    Date of Patent: February 18, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Eun-seok Park, Sang-wook Kwon, Jea-shik Shin, Young-tack Hong
  • WIRELESS POWER TRANSMITTER, WIRELESS POWER RELAY APPARATUS, AND WIRELESS POWER RECEIVER
    Publication number: 20140021796
    Abstract: A wireless power transmitter includes a source resonator configured to wirelessly transmit power via magnetic coupling with a target resonator; and an impedance adjusting unit configured to adjust an impedance of the source resonator using a plurality of impedance-matching bars located in the source resonator.
    Type: Application
    Filed: July 10, 2013
    Publication date: January 23, 2014
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Keum Su Song, Sang Wook Kwon, Ki Young Kim, Nam Yun Kim, Dong Zo Kim, Yun Kwon Park, Eun Seok Park, Chi Hyung Ahn, Young Ho Ryu, Chang Wook Yoon, Jin Sung Choi
  • Resonance power generator
    Patent number: 8611111
    Abstract: A resonance power generator is provided. The resonance power generator includes an alternating current/direct current (AC/DC) rectifier to rectify an input signal of an alternating voltage and an AC generator to generate an AC signal based on the rectified signal that is output from the AC/DC rectifier. The resonance power generator may also include, for example, a control unit to control a frequency of the AC signal, a filter unit to remove a spurious signal or a harmonic element included in the AC signal, a voltage/current amplifier to amplify the AC signal, and a source resonator to transmit a power to a target resonator.
    Type: Grant
    Filed: December 13, 2010
    Date of Patent: December 17, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Nam Yun Kim, Young Tack Hong, Sang Wook Kwon, Eun Seok Park, Young Ho Ryu
  • Load impedance decision device, wireless power transmission device, and wireless power transmission method
    Patent number: 8604644
    Abstract: A load impedance decision device, a wireless power transmission device, and a wireless power transmission method are provided. At least one of a distance and an angle between two resonators may be measured. A load impedance may be determined based on at least one of the measured distance and the measured angle. When the distance between the two resonators changes, a high power transfer efficiency may be maintained without using a separate matching circuit. Where the load impedance is determined, a test power may be transmitted. Depending on a power transfer efficiency of the test power, the load impedance may be controlled and power may be wirelessly transmitted from the source resonator to the target resonator.
    Type: Grant
    Filed: November 15, 2012
    Date of Patent: December 10, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Eun Seok Park, Sang Wook Kwon, Young-tack Hong
  • Resonance power generator and method, and resonance power receiver and method
    Patent number: 8598746
    Abstract: Provided is a resonance power generator and a resonance power receiver, and methods thereof. The resonance power generator may include a frequency generator to receive a direct current (DC) voltage, and to generate a power carrier signal, a high voltage matching transformer to be adjusted to enable an output voltage to be greater than an input voltage, a high current matching transformer to be adjusted to enable an output current to be greater than an input current, a switching unit to switch between the high voltage matching transformer and the high current matching transformer, a control unit to control the switching unit in accordance with an input signal, and a power resonator to transmit a power to a target resonator.
    Type: Grant
    Filed: December 14, 2010
    Date of Patent: December 3, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Nam Yun Kim, Young Tack Hong, Sang Wook Kwon, Eun Seok Park, Young Ho Ryu
  • EUTECTIC MIXTURE COMPRISING CELECOXIB AND POLOXAMER
    Publication number: 20130296280
    Abstract: The present invention relates to a eutectic mixture wherein poloxamer is added to the poorly soluble drug celecoxib to significantly increase the solubility and bioavailability of celecoxib.
    Type: Application
    Filed: November 15, 2012
    Publication date: November 7, 2013
    Inventors: Eun Seok Park, Yun Seok Rhee, Chun Woong Park, Tack Oon Oh, Ju Young Kim, Jung Myung Ha, Ji Ho Shin
  • Wireless power transmission method
    Patent number: 8571609
    Abstract: A wireless power transmission method is provided. The method includes exchanging information for wireless power transmission between a wireless power transmission device and a terminal, in order to determine a communication protocol.
    Type: Grant
    Filed: December 16, 2010
    Date of Patent: October 29, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chan Soo Hwang, Eun Seok Park, Sang Wook Kwon, Young Tack Hong
  • APPARATUS AND METHOD FOR BALANCED POWER AMPLIFICATION
    Publication number: 20130271222
    Abstract: An apparatus and a method for balanced power amplification are provided. An amplifier includes a splitter configured to split an input signal into a first input signal and a second input signal that include a 90° phase difference. The amplifier further includes a first power amplifier (PA) configured to amplify the first input signal to generate a first output signal. The amplifier further includes a second PA configured to amplify the second input signal to generate a second output signal. The amplifier further includes a combiner configured to combine the first output signal and the second output signal that include the 90° phase difference to generate an output signal.
    Type: Application
    Filed: April 16, 2013
    Publication date: October 17, 2013
    Applicants: SUNGKYUNKWAN UNIVERSITY Foundation for corporate Collaboration, SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jin Sung CHOI, Sang Wook KWON, Ki Young KIM, Nam Yun KIM, Dong Zo KIM, Yun Kwon PARK, Eun Seok PARK, Keum Su SONG, Young Ho RYU, Chang Wook YOON, Youngoo YANG
  • High efficiency resonator for wireless power transmission
    Patent number: 8558644
    Abstract: Provided is a resonator for a wireless power transmission, the resonator including a transmission line unit including a plurality of transmission line sheets arranged in parallel, and a capacitor provided at a predetermined position of the transmission line unit.
    Type: Grant
    Filed: December 14, 2010
    Date of Patent: October 15, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Young Ho Ryu, Eun Seok Park, Sang Wook Kwon, Young Tack Hong, Nam Yun Kim, Jung Hae Lee, Jae Hyun Park, Byung Chul Park
  • WIRELESS POWER TRANSMISSION SYSTEM AND METHOD FOR INCREASING COUPLING EFFICIENCY BY ADJUSTING RESONANT FREQUENCY
    Publication number: 20130249306
    Abstract: A wireless power transmission system and a method for increasing a coupling efficiency by adjusting a resonant frequency are provided. A device of the wireless power transmission system includes a resonator configured to transmit a wireless power, and a communication unit configured to receive information from another device. The device further includes a controller configured to determine a power transmission efficiency based on the information, and adjust a resonant frequency of the device, a resonant frequency of a relay device, and a resonant frequency of the other device, if the power transmission efficiency is less than or equal to a predetermined reference efficiency.
    Type: Application
    Filed: January 16, 2013
    Publication date: September 26, 2013
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Ki Young KIM, Eun Seok PARK, Young Ho RYU, Sang Wook KWON, Nam Yun KIM, Dong Zo KIM, Yun Kwon PARK, Chang Wook YOON, Jin Sung CHOI, Young Tack HONG
  • WIRELESS POWER TRANSMISSION SYSTEM WITH ENHANCED MAGNETIC FIELD STRENGTH
    Publication number: 20130134791
    Abstract: A wireless power transmission system with an enhanced magnetic field strength is provided. A wireless power transmitter includes a generator configured to generate a power. The wireless power transmitter further includes a resonator configured to generate a magnetic field to transmit the power to a target device. The wireless power transmitter further includes a slab unit configured to enhance the magnetic field.
    Type: Application
    Filed: September 14, 2012
    Publication date: May 30, 2013
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Eun Seok PARK, Ki Young KIM, Young Ho RYU, Sang Wook KWON, Nam Yun KIM, Dong Zo KIM, Yun Kwon PARK, Chang Wook YOON, Jin Sung CHOI, Young Tack HONG
  • WIRELESS POWER TRANSMISSION SYSTEM BASED ON CELL DIVISION
    Publication number: 20130134927
    Abstract: A wireless power transmission system based on cell division is provided. A communication and power control method of the wireless power transmission system, includes setting a magnetic coupling zone. The method further includes detecting a target device in the magnetic coupling zone. The method further includes transmitting a power to the target device. The method further includes adjusting an amount of the power based on a transmission efficiency of the power.
    Type: Application
    Filed: September 14, 2012
    Publication date: May 30, 2013
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Eun Seok PARK, Sang Wook KWON, Ki Young KIM, Nam Yun KIM, Dong Zo KIM, Yun Kwon PARK, Young Ho RYU, Chang Wook YOON, Jin Sung CHOI, Young Tack HONG
  • WIRELESS POWER TRANSMISSION SYSTEM AND MULTI-MODE RESONATOR IN WIRELESS POWER TRANSMISSION SYSTEM
    Publication number: 20130134793
    Abstract: A wireless power transmission system and a multi-mode resonator in the wireless power transmission system are provided. The multi-mode resonator includes a transmission line portion including unit-cells, the unit-cells including respective ends connected to each other, and each of the unit-cells including a capacitor, an inductor connected in parallel to the capacitor, and a via. The multi-mode resonator further includes a ground conducting portion configured to provide an electrical ground to the transmission line portion through the via of each of the unit-cells.
    Type: Application
    Filed: November 26, 2012
    Publication date: May 30, 2013
    Inventors: Young Ho RYU, Eun Seok PARK, Sang Wook KWON, Ki Young KIM, Nam Yun KIM, Dong Zo KIM, Byung Chul PARK, Yun Kwon PARK, Jae Hyun PARK, Chang Wook YOON, Jeong Hae LEE, Jin Sung CHOI, Young Tack HONG
  • WIRELESS POWER TRANSMISSION SYSTEM, AND METHOD OF CONTROLLING POWER IN WIRELESS POWER TRANSMISSION SYSTEM BASED ON DETECTION PARAMETER
    Publication number: 20130127256
    Abstract: A wireless power transmission system, and a method of controlling power in the wireless power transmission system based on a detection parameter are provided. The method includes transmitting a request signal to a device. The method further includes receiving, from the device, a response signal corresponding to the request signal, the response signal including a parameter of the device. The method further includes generating an operation power based on the parameter of the device, the operation power being used for an operation of the device.
    Type: Application
    Filed: November 13, 2012
    Publication date: May 23, 2013
    Inventors: Nam Yun Kim, Sang Wook Kwon, Yun Kwon Park, Eun Seok Park, Ki Young Kim, Young Ho Ryu, Dong Zo Kim, Jin Sung Choi, Chang Wook Yoon
  • METHOD AND APPARATUS FOR DATA COMMUNICATION IN WIRELESS POWER TRANSMISSION
    Publication number: 20130130621
    Abstract: A method and apparatus for data communication in wireless power transmission are provided. A wireless power transmitter includes a resonance antenna configured to wirelessly transmit a power to a wireless power receiver, and receive a signal from the wireless power receiver, the signal including a sub-carrier. The wireless power transmitter further includes a controller configured to receive the signal from the resonance antenna, and receive data from the wireless power receiver based on the sub-carrier.
    Type: Application
    Filed: July 26, 2012
    Publication date: May 23, 2013
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Dong Zo KIM, Sang Wook KWON, Ki Young KIM, Nam Yun KIM, Yun Kwon PARK, Eun Seok PARK, Young Ho RYU, Young Tack HONG, Jin Sung CHOI, Chang Wook YOON, Jong Won YU, Wang Sang LEE, Hyeong Seok JANG
  • WIRELESS POWER TRANSMISSION SYSTEM AND METHOD BASED ON IMPEDANCE MATCHING CONDITION
    Publication number: 20130113298
    Abstract: A wireless power transmission system and a method based on an impedance matching condition are provided. A source device of the wireless power transmission system, includes a power converter configured to generate power. The source device further includes a resonator configured to transmit the power to a target device. A ratio of an input impedance of the resonator to an output impedance of the power converter is less than a reference value.
    Type: Application
    Filed: November 7, 2012
    Publication date: May 9, 2013
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Young Ho RYU, Eun Seok PARK, Sang Wook KWON, Ki Young KIM, Nam Yun KIM, Dong Zo KIM, Yun Kwon PARK, Keum Su SONG, Chang Wook YOON, Jin Sung CHOI
  • WIRELESS POWER TRANSMISSION SYSTEM, RESONATOR IN WIRELESS POWER TRANSMISSION SYSTEM, AND RESONATOR DESIGN METHOD FOR OPTIMUM POWER DIVISION
    Publication number: 20130113296
    Abstract: A wireless power transmission system, a resonator in the wireless power transmission system, and a resonator design method for optimum power division are provided. A power receiver of the wireless power transmission system, includes a resonator configured to receive a power from a power transmitter. The power receiver further includes a power supply configured to supply the received power to a load. A figure of merit (FOM) of the resonator corresponds to a power dividing ratio of the power transmitter.
    Type: Application
    Filed: September 13, 2012
    Publication date: May 9, 2013
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Young Ho RYU, Eun Seok PARK, Sang Wook KWON, Ki Young KIM, Nam Yun KIM, Dong Zo KIM, Yun Kwon PARK, Keum Su SONG, Chang Wook YOON, Jin Sung CHOI
  • SOUND SYSTEM USING WIRELESS POWER TRANSMISSION
    Publication number: 20130101133
    Abstract: A sound system using wireless power transmission is provided. A power and data transmission apparatus in the sound system, includes a data transmitting unit configured to wirelessly transmit, to a sound output device, sound data. The apparatus further includes a power transmitting unit configured to wirelessly transmit, to the sound output device, power. The apparatus further includes a controller configured to control the data transmitting unit and the power transmitting unit based on a distance between the apparatus and the sound output device.
    Type: Application
    Filed: September 4, 2012
    Publication date: April 25, 2013
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Chang Wook YOON, Sang Wook KWON, Nam Yun KIM, Eun Seok PARK, Ki Young KIM, Dong Zo KIM, Yun Kwon PARK, Young Ho RYU, Jin Sung CHOI, Young Tack HONG