Patents by Inventor Woo-Seung CHOO

Woo-Seung CHOO 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).

  • Patent number: 8446190
    Abstract: A frequency divider includes a prescaler and multiple modulus dividers commonly coupled to the prescaler. The prescaler generates intermediate frequency signals having a same phase difference with respect to one another in response to an oscillation frequency signal. The prescaler operates at a first frequency. The modulus dividers respectively divide the intermediate frequency signals with respective ratio to provide a plurality of division frequency signals in response to a control signal. The modulus dividers operate at a second frequency less than the first frequency.
    Type: Grant
    Filed: July 9, 2009
    Date of Patent: May 21, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Woogeun Rhee, Xueyi Yu, Yuanfeng Sun, Sang-Soo Ko, Byeong-Ha Park, Hyung-Ki Ahn, Woo-Seung Choo, Zhihua Wang
  • Publication number: 20100225361
    Abstract: A frequency divider includes a prescaler and multiple modulus dividers commonly coupled to the prescaler. The prescaler generates intermediate frequency signals having a same phase difference with respect to one another in response to an oscillation frequency signal. The prescaler operates at a first frequency. The modulus dividers respectively divide the intermediate frequency signals with respective ratio to provide a plurality of division frequency signals in response to a control signal. The modulus dividers operate at a second frequency less than the first frequency.
    Type: Application
    Filed: July 9, 2009
    Publication date: September 9, 2010
    Applicants: SAMSUNG ELECTRONICS CO., LTD., TSINGHUA UNIVERSITY
    Inventors: Woogeun RHEE, Xueyi YU, Yuanfeng SUN, Sang-Soo KO, Byeong-Ha PARK, Hyung-Ki AHN, Woo-Seung CHOO, Zhihua WANG