Patents by Inventor Zhao Xudong

Zhao Xudong 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).

  • GFSK receiver
    Patent number: 7239675
    Abstract: A method for synchronizing a receiver to a stream of transmitted symbols that includes a known synchronization word. The method includes receiving a signal in which the symbols, including the synchronization word, are encoded by frequency shift keying. The signal is sampled and digitized to generate a sequence of input samples. For each of the input samples, a phase difference is determined relative to a preceding input sample in the sequence, thereby generating a sequence of differential samples corresponding respectively to the input samples. The differential samples are then matched to the synchronization word.
    Type: Grant
    Filed: July 15, 2003
    Date of Patent: July 3, 2007
    Assignee: Intel Corporation
    Inventors: Ephi Zehavi, Boris Ginsburg, Ron Shalev, Zhao Xudong
  • GFSK receiver
    Publication number: 20040013209
    Abstract: A method for synchronizing a receiver to a stream of transmitted symbols that includes a known synchronization word. The method includes receiving a signal in which the symbols, including the synchronization word, are encoded by frequency shift keying. The signal is sampled and digitized to generate a sequence of input samples. For each of the input samples, a phase difference is determined relative to a preceding input sample in the sequence, thereby generating a sequence of differential samples corresponding respectively to the input samples. The differential samples are then matched to the synchronization word.
    Type: Application
    Filed: July 15, 2003
    Publication date: January 22, 2004
    Inventors: Ephi Zehavi, Boris Ginsburg, Ron Shalev, Zhao Xudong
  • GFSK receiver
    Publication number: 20030043947
    Abstract: A method for synchronizing a receiver to a stream of transmitted symbols that includes a known synchronization word. The method includes receiving a signal in which the symbols, including the synchronization word, are encoded by frequency shift keying. The signal is sampled and digitized to generate a sequence of input samples. For each of the input samples, a phase difference is determined relative to a preceding input sample in the sequence, thereby generating a sequence of differential samples corresponding respectively to the input samples. The differential samples are then matched to the synchronization word.
    Type: Application
    Filed: May 17, 2001
    Publication date: March 6, 2003
    Inventors: Ephi Zehavi, Boris Ginsburg, Ron Shalev, Zhao Xudong