Patents by Inventor LuoSheng Li

LuoSheng Li 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).

  • Wideband digitally-controlled oscillator (DCO) and digital broadcasting receiver having the same
    Patent number: 8212627
    Abstract: A wideband digitally-controlled oscillator (DCO) is provided. The wideband DCO includes an active element which is driven by a first digital control signal; a single inductor which is connected to the active element in parallel, and comprises fixed inductance; and a plurality of capacitors which are connected to the single inductor in parallel, and vary operating frequency by being selectively turned on or off by a second digital control signal. Accordingly, the wideband DCO capable of operating in a wideband frequency range using a single inductor is provided, and if the wideband DCO is implemented using a single integrated circuit (IC) chip, the size of chip is reduced as the single inductor is used.
    Type: Grant
    Filed: February 24, 2010
    Date of Patent: July 3, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Li Yang, Hyun-koo Kang, Dae-yeon Kim, LuoSheng Li
  • WIDEBAND DIGITALLY-CONTROLLED OSCILLATOR (DCO) AND DIGITAL BROADCASTING RECEIVER HAVING THE SAME
    Publication number: 20100215123
    Abstract: A wideband digitally-controlled oscillator (DCO) is provided. The wideband DCO includes an active element which is driven by a first digital control signal; a single inductor which is connected to the active element in parallel, and comprises fixed inductance; and a plurality of capacitors which are connected to the single inductor in parallel, and vary operating frequency by being selectively turned on or off by a second digital control signal. Accordingly, the wideband DCO capable of operating in a wideband frequency range using a single inductor is provided, and if the wideband DCO is implemented using a single integrated circuit (IC) chip, the size of chip is reduced as the single inductor is used.
    Type: Application
    Filed: February 24, 2010
    Publication date: August 26, 2010
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Li YANG, Hyun-koo KANG, Dae-yeon KIM, LuoSheng LI