Patents by Inventor Wai Yuk William Tao

Wai Yuk William Tao 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).

  • Publication number: 20040146013
    Abstract: A time division duplex repeater system includes two antennas, a switched directional amplifier and control circuitry. The antennas serve first and second coverage areas where the second coverage area is an extension of the first coverage area. The switched directional amplifier is coupled between the two antennas and has a single amplifier. The control circuitry is coupled to the switched directional amplifier and to receive inputs of the antennas. The control circuitry receives transmissions from the coverage areas and applies control signals to the switched directional amplifier to control the direction of transmission. The control circuitry may control the amplifier gain and direction of transmission based on the input signal power level.
    Type: Application
    Filed: January 22, 2003
    Publication date: July 29, 2004
    Applicant: Hong Kong Applied Science and Technology Research Institute Co., Ltd
    Inventors: Peter Chun Teck Song, Ross David Murch, Hang Ching Jason Leung, Wai Yuk William Tao