Patents by Inventor Dal Hoi SHIM

Dal Hoi SHIM 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 of controlling impedance matching with respect to multiple targets in wireless power transmission system, and wireless power transmission system adopting the method
    Patent number: 9882392
    Abstract: A method of operating a wireless power transmission apparatus includes receiving information on rectifier output voltages from at least one wireless power reception apparatus; determining whether the rectifier output voltages are within a predetermined operating range, and controlling an impedance of the wireless power transmission apparatus based on a result of the determining.
    Type: Grant
    Filed: July 21, 2014
    Date of Patent: January 30, 2018
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Nam Yun Kim, Sang Wook Kwon, Hyuk Choon Kwon, Ki Young Kim, Dal Hoi Shim, Chi Hyung Ahn
  • METHOD AND APPARATUS FOR DETECTING COUPLING REGION
    Publication number: 20150022012
    Abstract: A method and apparatus to detect a coupling region in a wireless power transmission and reception system are provided. To detect a coupling region, a wireless power transmission apparatus receives state information of a wireless power reception apparatus, calculates a variation in the state information due to movement of the wireless power reception apparatus, and generates coupling region update information of the wireless power reception apparatus, based on the variation. The receiving, the calculating, and the generating are repeatedly performed.
    Type: Application
    Filed: July 1, 2014
    Publication date: January 22, 2015
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Nam Yun KIM, Sang Wook KWON, Dong Zo KIM, Jae Hyun PARK, Keum Su SONG, Dal Hoi SHIM
  • METHOD OF CONTROLLING IMPEDANCE MATCHING WITH RESPECT TO MULTIPLE TARGETS IN WIRELESS POWER TRANSMISSION SYSTEM, AND WIRELESS POWER TRANSMISSION SYSTEM ADOPTING THE METHOD
    Publication number: 20150022017
    Abstract: A method of operating a wireless power transmission apparatus includes receiving information on rectifier output voltages from at least one wireless power reception apparatus; determining whether the rectifier output voltages are within a predetermined operating range, and controlling an impedance of the wireless power transmission apparatus based on a result of the determining.
    Type: Application
    Filed: July 21, 2014
    Publication date: January 22, 2015
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Nam Yun Kim, Sang Wook Kwon, Hyuk Choon Kwon, Ki Young Kim, Dal Hoi Shim, Chi Hyung Ahn
  • POWER TRANSMITTING UNIT (PTU) AND POWER RECEIVING UNIT (PRU), AND COMMUNICATION METHOD OF PTU AND PRU IN WIRELESS POWER TRANSMISSION SYSTEM
    Publication number: 20150022013
    Abstract: A communication method of a power transmitting unit (PTU) in a wireless power transmission system includes receiving a connection request signal from each of at least one power receiving unit (PRU), transmitting impedance change information of the at least one PRU to the at least one PRU, sensing a change in an impedance of each of the at least one PRU receiving the impedance change information, and determining whether each of the at least one PRU is connected based on the sensed change in the impedance.
    Type: Application
    Filed: July 2, 2014
    Publication date: January 22, 2015
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Nam Yun Kim, Sang Wook Kwon, Hyuk Choon Kwon, Ki Young Kim, Yun Kwon Park, Dal Hoi Shim, Byoung Hee Lee