Patents by Inventor Xinyu Harry Zang

Xinyu Harry Zang 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).

  • Method and apparatus for active RFID network
    Patent number: 7982585
    Abstract: A method and an apparatus for evaluating an expression embedded inside a communication packet received from an RFID (Radio Frequency Identification) interrogator device are described. The evaluation result may determine a selection with another RFID interrogator device. An RFID data packet may be sent to an RFID interrogator device based on a selection to be associated with the RFID interrogator. A task may be performed based on the evaluation as instructed by a remote RFID interrogator through a command included in the wireless communication packet.
    Type: Grant
    Filed: February 28, 2007
    Date of Patent: July 19, 2011
    Inventors: Li-Cheng Richard Zai, Xinyu Harry Zang
  • Location based electronic sign system
    Publication number: 20080284566
    Abstract: A method and an apparatus for determining the proximity between an electronic sign and one or more object items to transmit presentation information to the electronic sign are described. The determination may be based on a signal wirelessly generated from the electronic sign. The presentation information displayed at the electronic sign may describe the one or more object items. Locations of the one or more object items may be determined based on wirelessly received identifiers of the one or more objects items, a portable wireless device, and the electronic sign.
    Type: Application
    Filed: June 25, 2007
    Publication date: November 20, 2008
    Inventors: Li-Cheng Richard Zai, Xinyu Harry Zang, Sophia Fang-Jung Liu
  • Method and apparatus for active RFID network
    Publication number: 20080204193
    Abstract: A method and an apparatus for evaluating an expression embedded inside a communication packet received from an RFID (Radio Frequency Identification) interrogator device are described. The evaluation result may determine a selection with another RFID interrogator device. An RFID data packet may be sent to an RFID interrogator device based on a selection to be associated with the RFID interrogator. A task may be performed based on the evaluation as instructed by a remote RFID interrogator through a command included in the wireless communication packet.
    Type: Application
    Filed: February 28, 2007
    Publication date: August 28, 2008
    Inventors: Li-Cheng Richard Zai, Xinyu Harry Zang