Patents by Inventor Angus Mak Chi Keung

Angus Mak Chi Keung 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).

  • Low cost multi-beam, multi-band and multi-diversity antenna systems and methods for wireless communications
    Patent number: 7525504
    Abstract: Systems and methods for employing switched phase shifters and a feed network to provide a low cost multiple beam antenna system for wireless communications. The present systems and methods may also facilitate multi-band communications and employ multi-diversity. The present systems and methods allow communication systems to achieve enhanced performance for communication or other services such as location tracking. The present systems and methods may employ switched phase shifters, multiple diversity antennas and/or a feed network having a multi-layer construction to provide an antenna system with low losses, low external component count and/or which is thin and compact.
    Type: Grant
    Filed: June 30, 2006
    Date of Patent: April 28, 2009
    Assignee: Hong Kong Applied Science and Technology Research Institute Co., Ltd.
    Inventors: Peter Chun Teck Song, Ross David Murch, Angus Mak Chi Keung, Douglas Ronald George, Piu Bill Wong
  • Low cost multi-beam, multi-band and multi-diversity antenna systems and methods for wireless communications
    Patent number: 7075485
    Abstract: Systems and methods for employing switched phase shifters and a feed network to provide a low cost multiple beam antenna system for wireless communications. The present systems and methods may also facilitate multi-band communications and employ multi-diversity. The present systems and methods allow communication systems to achieve enhanced performance for communication or other services such as location tracking. The present systems and methods may employ switched phase shifters, multiple diversity antennas and/or a feed network having a multi-layer construction to provide an antenna system with low losses, low external component count and/or which is thin and compact.
    Type: Grant
    Filed: November 24, 2003
    Date of Patent: July 11, 2006
    Assignee: Hong Kong Applied Science and Technology Research Institute Co., Ltd.
    Inventors: Peter Chun Teck Song, Ross David Murch, Angus Mak Chi Keung, Douglas Ronald George, Piu Bill Wong