Patents by Inventor Ho-Chen Chang

Ho-Chen Chang 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).

  • Communication device and related antenna module
    Patent number: 7394429
    Abstract: A wireless communication device includes a shell having a first shielding surface for shielding electromagnetic waves, a data processing module, a wireless communication module connected to the data processing module, and an antenna module disposed on the shell and connected to the wireless communication module. The antenna module has a first antenna unit and a second antenna unit. The first shielding surface shields the first antenna unit from the second antenna unit.
    Type: Grant
    Filed: December 21, 2004
    Date of Patent: July 1, 2008
    Assignee: Wistron NeWeb Corporation
    Inventors: Chien-Hsing Fang, Ho-Chen Chang
  • ADJUSTABLE WIRELESS COMMUNICATION DEVICE AND ANTENNA MODULE AND CONTROL METHOD THEREOF
    Publication number: 20050176374
    Abstract: An adjustable wireless communication device and an antenna module for transmitting radio signals includes a plurality of antennas arranged in an array, and a control circuit connected to the plurality of antennas for switching on a subset of antennas among the plurality of antennas. When the control circuit switches on fewer antennas among the plurality of the antennas, the directivity of the radiation pattern of the antenna module is weaker; and when the control circuit switches on more antennas among the plurality of the antennas, the directivity of the radiation pattern of the antenna module is stronger.
    Type: Application
    Filed: December 22, 2004
    Publication date: August 11, 2005
    Inventors: Chien-Hsing Fang, Ho-Chen Chang
  • COMMUNICATION DEVICE AND RELATED ANTENNA MODULE
    Publication number: 20050159196
    Abstract: A wireless communication device includes a shell having a first shielding surface for shielding electromagnetic waves, a data processing module, a wireless communication module connected to the data processing module, and an antenna module disposed on the shell and connected to the wireless communication module. The antenna module has a first antenna unit and a second antenna unit. The first shielding surface shields the first antenna unit from the second antenna unit.
    Type: Application
    Filed: December 21, 2004
    Publication date: July 21, 2005
    Inventors: Chien-Hsing Fang, Ho-Chen Chang