Patents by Inventor James Tjin-Tek Chang

James Tjin-Tek Chang 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).

  • Methods and systems for triggerless screening of wireless message service messages for delivery with differential quality of service
    Patent number: 7133420
    Abstract: Methods and systems for triggerless screening of WMS messages for delivery with differential quality of service (QoS) are disclosed. Signaling messages are screened to determine whether they contain WMS content. In response to determining that a message contains WMS content, origination and/or destination party information is extracted from the WMS message to determine the QoS associated with the WMS message. The WMS message is then modified to include routing information for delivering the SMS messages to their intended destinations with different qualities of service.
    Type: Grant
    Filed: November 15, 2002
    Date of Patent: November 7, 2006
    Assignee: Tekelec
    Inventors: James Tjin-Tek Chang, Rick L. Allison, Thomas M. McCann
  • Methods and systems for providing triggerless intelligent network (IN) screening services based on call setup messages
    Patent number: 6959076
    Abstract: Method and systems for providing triggerless screening services include a triggerless screening service routing node and a message processing platform. The triggerless screening service routing node identifies call setup messages that require one or more call screening services and diverts the messages to a message processing platform. The message processing platform performs at least one screening action on the call setup messages and modifies the messages to include the type and result of the screening action.
    Type: Grant
    Filed: July 13, 2001
    Date of Patent: October 25, 2005
    Assignee: Tekélec
    Inventors: James Tjin-Tek Chang, Thomas Matthew McCann, Peter Joseph Marsico, Allen Woodward Haley, Jr., Linda Ann Rushnack
  • Methods and systems for triggerless screening of wireless message service messages for delivery with differential quality of service
    Publication number: 20040095889
    Abstract: Methods and systems for triggerless screening of WMS messages for delivery with differential quality of service (QoS) are disclosed. Signaling messages are screened to determine whether they contain WMS content. In response to determining that a message contains WMS content, origination and/or destination party information is extracted from the WMS message to determine the QoS associated with the WMS message. The WMS message is then modified to include routing information for delivering the SMS messages to their intended destinations with different qualities of service.
    Type: Application
    Filed: November 15, 2002
    Publication date: May 20, 2004
    Applicant: Tekelec
    Inventors: James Tjin-Tek Chang, Rick L. Allison, Thomas M. McCann
  • Methods and systems for providing triggerless intelligent network (in) screening services based on call setup messages
    Publication number: 20020054674
    Abstract: Method and systems for providing triggerless screening services include a triggerless screening service routing node and a message processing platform. The triggerless screening service routing node identifies call setup messages that require one or more call screening services and diverts the messages to a message processing platform. The message processing platform performs at least one screening action on the call setup messages and modifies the messages to include the type and result of the screening action.
    Type: Application
    Filed: July 13, 2001
    Publication date: May 9, 2002
    Inventors: James Tjin-Tek Chang, Thomas Matthew McCann, Peter Joseph Marsico, Allen Woodward Haley, Linda Ann Rushnak