Patents by Inventor Soon Suk Roh

Soon Suk Roh 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).

  • Publication number: 20200361623
    Abstract: A fuel cell power pack for a drone and a state information monitoring method thereof are provided. The fuel cell power pack for a drone may include a power pack main body coupled to the drone, a fuel cell stack module disposed in the power pack main body to receive fuel and air to supply a power to the drone, a state information detector configured to detect state information of the fuel cell stack module, a power pack communicator configured to transmit information to an outside of the power pack main body or receive the information from the outside thereof by wire or wirelessly, and a power pack controller configured to control the power pack communicator to transmit the state information of the fuel cell stack module detected by the state information detector to the outside of the power pack main body.
    Type: Application
    Filed: November 16, 2018
    Publication date: November 19, 2020
    Inventors: Soon Suk ROH, Yong Shik CHONG
  • Patent number: 8848822
    Abstract: A feedback method for interference alignment in wireless network having K transmitters and K receivers, the method including: transmitting, by a transmitter n?1, a precoding vector of the transmitter n?1 (n being an integer between 2 and K?1) to a receiver n+1; calculating, by the receiver n+1, a precoding vector of a transmitter n using the precoding vector of the transmitter n?1; and transmitting, by the receiver n+1, the precoding vector of the transmitter n to the transmitter n.
    Type: Grant
    Filed: February 1, 2011
    Date of Patent: September 30, 2014
    Assignees: LG Electronics Inc., Industry-Academic Cooperation Foundation, Yonsei University
    Inventors: Han Byul Seo, Kaibin Huang, Soon Suk Roh, Sung Yoon Cho, Hyuk Jin Chae, Byoung Hoon Kim, Dong Ku Kim
  • Patent number: 8843166
    Abstract: A method for interference alignment in wireless network having 3 transmitters and 3 receivers which are equipped with M antennas is provided. The method comprising: transmitting, performed by each of the 3 transmitters, a pilot signal known to the 3 receivers; estimating, performed by each of the 3 receivers, each channel from transmitter; transmitting, performed by each of the 3 receivers, feedback information to target transmitter; and determining, performed by transmitter 2 and transmitter 3, a precoding vector; wherein a degree of freedom (DoF) of a transmitter 1 is (M/2??), a DoF of the transmitter 2 or the transmitter 3 is M/2.
    Type: Grant
    Filed: February 1, 2011
    Date of Patent: September 23, 2014
    Assignees: LG Electronics Inc., Industry-Academic Cooperation Foundation, Yonsei University
    Inventors: Han Byul Seo, Kaibin Huang, Soon Suk Roh, Sung Yoon Cho, Hyuk Jin Chae, Byoung Hoon Kim, Dong Ku Kim
  • Patent number: 8818445
    Abstract: A power control method for interference alignment in wireless network having K transmitters and K receivers is provided. The method includes: receiving, performed by receiver n (n is an integer, 1?n?K?1), a power indication signal of transmitter n+1 from the transmitter n+1; determining, performed by the receiver n, power of transmitter n; and transmitting, performed by the receiver n, a power indication signal of transmitter n to the transmitter n, wherein the power of transmitter n is determined based on a residual interference of the receiver n, and the power indication signal of transmitter n indicates a minimum transmission power or a maximum transmission power of transmitter n.
    Type: Grant
    Filed: February 1, 2011
    Date of Patent: August 26, 2014
    Assignees: LG Electronics Inc., Industry-Academic Cooperation Foundation, Yonsei University
    Inventors: Han Byul Seo, Kaibin Huang, Soon Suk Roh, Sung Yoon Cho, Hyuk Jin Chae, Byoung Hoon Kim, Dong Ku Kim
  • Publication number: 20120307929
    Abstract: A feedback method for interference alignment in wireless network having K transmitters and K receivers is provides. The method comprising: transmitting, performed by transmitter n?1, a precoding vector of transmitter n?1 (n is a integer between 2 and K?1) to receiver n+1; calculating, performed by the receiver n+1, a precoding vector of transmitter n using the precoding vector of transmitter n?1; and transmitting, performed by the receiver n+1, the precoding vector of transmitter n to transmitter n.
    Type: Application
    Filed: February 1, 2011
    Publication date: December 6, 2012
    Applicant: LG ELECTRONICS INC.
    Inventors: Han Byul Seo, Kaibin Huang, Soon Suk Roh, Sung Yoon Cho, Hyuk Jin Chae, Byoung Hoon Kim, Dong Ku Kim
  • Publication number: 20120302280
    Abstract: A power control method for interference alignment in wireless network having K transmitters and K receivers is provided. The method comprising: receiving, performed by receiver n (n is an integer, 1?n?K?1), a power indication signal of transmitter n+1 from the transmitter n+1; determining, performed by the receiver n, power of transmitter n; and transmitting, performed by the receiver n, a power indication signal of transmitter n to the transmitter n, wherein the power of transmitter n is determined based on a residual interference of the receiver n, and the power indication signal of transmitter n indicates a minimum transmission power or a maximum transmission power of transmitter n.
    Type: Application
    Filed: February 1, 2011
    Publication date: November 29, 2012
    Applicants: Industry Academic Cooperation Foundation Yonsei University, LG ELECTRONICS INC.
    Inventors: Han Byul Seo, Kaibin Huang, Soon Suk Roh, Sung Yoon Cho, Hyuk Jin Chae, Byoung Hoon Kim, Dong Ku Kim
  • Publication number: 20120289267
    Abstract: A method for interference alignment in wireless network having 3 transmitters and 3 receivers which are equipped with M antennas is provided. The method comprising: transmitting, performed by each of the 3 transmitters, a pilot signal known to the 3 receivers; estimating, performed by each of the 3 receivers, each channel from transmitter; transmitting, performed by each of the 3 receivers, feedback information to target transmitter; and determining, performed by transmitter 2 and transmitter 3, a precoding vector; wherein a degree of freedom(DoF) of a transmitter 1 is (M/2??), a DoF of the transmitter 2 or the transmitter 3 is M/2.
    Type: Application
    Filed: February 1, 2011
    Publication date: November 15, 2012
    Applicants: INDUSTRY-ACADEMIC COOPERATION FOUNDATION, YONSEI UNIVERSITY, LG ELECTRONICS INC.
    Inventors: Han Byul Seo, Kaibin Huang, Soon Suk Roh, Sung Yoon Cho, Hyuk Jin Chae, Byoung Hoon Kim, Dong Ku Kim