Patents by Inventor Hak-Jea Sung

Hak-Jea Sung 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: 7697712
    Abstract: A speaker device installed in an earpiece, for improving an antenna property in a wireless portable terminal is provided. The speaker device includes a housing, a magnet is installed on the housing, a diaphragm located a predetermined distance away over the magnet and includes a coil situated at a position corresponding to the magnet, and a cover covers the diaphragm and is in engagement with the housing, thereby forming a module. At least one inductor is provided at a feeding portion of the coil formed or installed on the diaphragm, thereby preventing the speaker device from resonating at a radio frequency (RF).
    Type: Grant
    Filed: December 15, 2005
    Date of Patent: April 13, 2010
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Hak-Jea Sung, Kyeong-Jun Kim, Jin-Sun Woo, Chang-Ki Lee
  • Publication number: 20060204027
    Abstract: A speaker device installed in an earpiece, for improving an antenna property in a wireless portable terminal is provided. The speaker device includes a housing, a magnet is installed on the housing, a diaphragm located a predetermined distance away over the magnet and includes a coil situated at a position corresponding to the magnet, and a cover covers the diaphragm and is in engagement with the housing, thereby forming a module. At least one inductor is provided at a feeding portion of the coil formed or installed on the diaphragm, thereby preventing the speaker device from resonating at a radio frequency (RF).
    Type: Application
    Filed: December 15, 2005
    Publication date: September 14, 2006
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hak-Jea Sung, Kyeong-Jun Kim, Jin-Sun Woo, Chang-Ki Lee
  • Publication number: 20060142044
    Abstract: Disclosed is an apparatus for controlling a transmission (TX) power in a mobile terminal having at least two receive (RX) antennas. The apparatus includes a TX gain estimator for determining an AGC gain value corresponding to the estimated TX power; a compensation gain detector for determining a gain compensation value corresponding to the calculated difference; a closed-loop power controller for determining an up/down value of the TX power based on a power control bit received from a base station; and a TX gain determiner for determining a final AGC gain value.
    Type: Application
    Filed: December 28, 2005
    Publication date: June 29, 2006
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: Hak-Jea Sung