Patents by Inventor Ku-Duck KWON

Ku-Duck KWON 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).

  • Device and method for removing direct current offset using randomized control pulse
    Patent number: 9491013
    Abstract: A device and method for solving problems of the prior art in which channel information as well as a DC offset is removed when removing the DC offset using a feedback signal of a baseband amplifier is provided. The device includes a DC offset correcting unit for removing the DC offset using an HPF function and controlling a feedback path according to a control signal to stop the HPF function and a signal generator for generating the control signal for controlling the HPF function, wherein the control signal is a signal for controlling formation and cutting-off of the feedback path.
    Type: Grant
    Filed: November 6, 2012
    Date of Patent: November 8, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Ku-Duck Kwon
  • Radio frequency amplifier in communication system and method of controlling the same
    Patent number: 9088253
    Abstract: A Radio Frequency (RF) amplifier in a communication system and a method for controlling the RF amplifier are provided. The RF amplifier includes an input unit for receiving an RF signal, a cascode unit for amplifying the RF signal according to a gain of the RF amplifier and for outputting the amplified RF signal, a load unit connected to the cascode unit, and a gain controller for controlling the gain by converting an impedance in a baseband to an impedance viewed from an RF band, the gain controller being connected in parallel to the load unit.
    Type: Grant
    Filed: August 6, 2012
    Date of Patent: July 21, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Ku-Duck Kwon
  • DEVICE AND METHOD FOR REMOVING DIRECT CURRENT OFFSET USING RANDOMIZED CONTROL PULSE
    Publication number: 20140286456
    Abstract: A device and method for solving problems of the prior art in which channel information as well as a DC offset is removed when removing the DC offset using a feedback signal of a baseband amplifier is provided. The device includes a DC offset correcting unit for removing the DC offset using an HPF function and controlling a feedback path according to a control signal to stop the HPF function and a signal generator for generating the control signal for controlling the HPF function, wherein the control signal is a signal for controlling formation and cutting-off of the feedback path.
    Type: Application
    Filed: November 6, 2012
    Publication date: September 25, 2014
    Applicant: Samsung-ro, Yeongtong-gu
    Inventor: Ku-Duck Kwon
  • RADIO FREQUENCY AMPLIFIER IN COMMUNICATION SYSTEM AND METHOD OF CONTROLLING THE SAME
    Publication number: 20130038396
    Abstract: A Radio Frequency (RF) amplifier in a communication system and a method for controlling the RF amplifier are provided. The RF amplifier includes an input unit for receiving an RF signal, a cascode unit for amplifying the RF signal according to a gain of the RF amplifier and for outputting the amplified RF signal, a load unit connected to the cascode unit, and a gain controller for controlling the gain by converting an impedance in a baseband to an impedance viewed from an RF band, the gain controller being connected in parallel to the load unit.
    Type: Application
    Filed: August 6, 2012
    Publication date: February 14, 2013
    Applicant: SAMSUNG ELECTRONICS CO. LTD.
    Inventor: Ku-Duck KWON