Patents by Inventor Cheal-Hoon Choi

Cheal-Hoon Choi 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).

  • RF module structure of a mobile communication terminal
    Patent number: 7715203
    Abstract: An apparatus is disclosed for a module structure of a mobile communication terminal. The module structure comprises a radio frequency portion for processing communicated radio frequency signals, and a base-band portion commonly used by the radio frequency portion for providing modular replacement of a radio frequency multi-chip module connected to the radio frequency portion. The radio frequency multi-chip module is selected in accordance with a corresponding frequency band of the mobile communication terminal.
    Type: Grant
    Filed: December 30, 2004
    Date of Patent: May 11, 2010
    Assignee: LG Electronics Inc.
    Inventor: Cheal-Hoon Choi
  • Keypad assembly for mobile station
    Patent number: 7702356
    Abstract: A keypad assembly for a mobile station comprises a base pad adapted to support a plurality of keys, the plurality of keys comprising a plurality of first keys and a plurality of second keys. The keypad assembly also comprises the plurality of first keys and the plurality of second keys arranged on the base pad, the plurality of second keys defined by horizontal center lines and vertical center lines of the plurality of first keys. The plurality of second keys may be further defined by outer perimeters of the plurality of first keys. The keypad assembly may further comprise a strength reinforcing plate coupled to the base pad, adapted to mechanically strengthen the keypad assembly. An alphabetic character may be assigned to each of the plurality of first keys. A numeral may be assigned to at least one of the plurality of second keys.
    Type: Grant
    Filed: September 20, 2005
    Date of Patent: April 20, 2010
    Assignee: LG Electronics Inc.
    Inventor: Cheal-Hoon Choi
  • Keypad assembly for mobile station
    Publication number: 20060062624
    Abstract: A keypad assembly for a mobile station comprises a base pad adapted to support a plurality of keys, the plurality of keys comprising a plurality of first keys and a plurality of second keys. The keypad assembly also comprises the plurality of first keys and the plurality of second keys arranged on the base pad, the plurality of second keys defined by horizontal center lines and vertical center lines of the plurality of first keys. The plurality of second keys may be further defined by outer perimeters of the plurality of first keys. The keypad assembly may further comprise a strength reinforcing plate coupled to the base pad, adapted to mechanically strengthen the keypad assembly. An alphabetic character may be assigned to each of the plurality of first keys. A numeral may be assigned to at least one of the plurality of second keys.
    Type: Application
    Filed: September 20, 2005
    Publication date: March 23, 2006
    Inventor: Cheal-Hoon Choi
  • RF module structure of a mobile communication terminal
    Publication number: 20050143122
    Abstract: An apparatus is disclosed for a module structure of a mobile communication terminal. The module structure comprises a radio frequency portion for processing communicated radio frequency signals, and a base-band portion commonly used by the radio frequency portion for providing modular replacement of a radio frequency multi-chip module connected to the radio frequency portion. The radio frequency multi-chip module is selected in accordance with a corresponding frequency band of the mobile communication terminal.
    Type: Application
    Filed: December 30, 2004
    Publication date: June 30, 2005
    Inventor: Cheal-Hoon Choi