Patents by Inventor Ju-Ho Van

Ju-Ho Van 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 for power amplification and electronic device thereof
    Patent number: 9197281
    Abstract: An apparatus and method for applying digital pre-distortion (DPD) technology in an electronic device which uses an envelope tracking (ET) method is provided. The electronic device includes an antenna, a modem, a transceiver configured to convert a signal generated in the modem into a radio frequency signal, an ET modulator configured to supply power to a power amplifier based on an amplitude component of the signal generated in the modem, and the power amplifier configured to amplify power of a signal received from the transceiver based on an output signal of the ET modulator. The modem generates a signal by using a DPD) variable corresponding to output impedance of the power amplifier caused by the antenna from among a plurality of DPD variables.
    Type: Grant
    Filed: January 9, 2015
    Date of Patent: November 24, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Ju-Ho Van, Hyun-Ju Hong
  • METHOD FOR POWER AMPLIFICATION AND ELECTRONIC DEVICE THEREOF
    Publication number: 20150200703
    Abstract: An apparatus and method for applying digital pre-distortion (DPD) technology in an electronic device which uses an envelope tracking (ET) method is provided. The electronic device includes an antenna, a modem, a transceiver configured to convert a signal generated in the modem into a radio frequency signal, an ET modulator configured to supply power to a power amplifier based on an amplitude component of the signal generated in the modem, and the power amplifier configured to amplify power of a signal received from the transceiver based on an output signal of the ET modulator. The modem generates a signal by using a DPD) variable corresponding to output impedance of the power amplifier caused by the antenna from among a plurality of DPD variables.
    Type: Application
    Filed: January 9, 2015
    Publication date: July 16, 2015
    Inventors: Ju-Ho Van, Hyun-Ju Hong