Patents by Inventor Judy Xu

Judy Xu 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).

  • Signal strength assisted searcher and acquisition
    Patent number: 7339977
    Abstract: A code division, multiple access (CDMA) receiver includes an RF section for receiving a CDMA signal through a channel; a circuit for determining an instantaneous total received power (Io) of the received CDMA signal; and a searcher that is one of enabled for operation or disabled from operation in accordance with value of Io. The circuit includes a comparator for comparing Io against a threshold, and for generating a searcher trigger signal only when Io exceeds the threshold or, preferably, for generating the searcher trigger signal if Io does not exceed the threshold, within some predetermined period of time.
    Type: Grant
    Filed: June 27, 2001
    Date of Patent: March 4, 2008
    Assignee: Nokia Corporation
    Inventors: Antti Känsäkoski, Tom Kenney, Jean-Marie Tran, Judy Xu
  • Signal strength assisted searcher and acquisition
    Publication number: 20030002563
    Abstract: A code division, multiple access (CDMA) receiver includes an RF section for receiving a CDMA signal through a channel; a circuit for determining an instantaneous total received power (Io) of the received CDMA signal; and a searcher that is one of enabled for operation or disabled from operation in accordance with value of Io. The circuit includes a comparator for comparing Io against a threshold, and for generating a searcher trigger signal only when Io exceeds the threshold or, preferably, for generating the searcher trigger signal if Io does not exceed the threshold, within some predetermined period of time.
    Type: Application
    Filed: June 27, 2001
    Publication date: January 2, 2003
    Inventors: Antti Kansakoski, Tom Kenney, Jean-Marie Tran, Judy Xu