Patents by Inventor Derek Kit Tam

Derek Kit Tam 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: 20060029192
    Abstract: Architecture and methods to provide an intermediary model for inter-carrier Multi-Media Messaging (MMS) services so that numerous wireless operators can transmit MMS messages between them. The architecture also provides for delivery, at least of notification messages, to those wireless operators who are not part of the overall inter-carrier MMS infrastructure.
    Type: Application
    Filed: August 19, 2004
    Publication date: February 9, 2006
    Inventors: William Duddley, Derek Kit Tam, James Farrow, Brian Beggerly, Kirk Tsai, William Chu, Robert Lovell
  • Publication number: 20050198270
    Abstract: A method for detecting an undesirable condition within a messaging network. A message is received and a source of the message is identified. If an entry in a database for the source has not been created, an entry is created. A source counter for the source is then set to one and a timestamp is created for the source. If an entry in the database for the source has been previously created, the source counter is incremented by one and the timestamp is updated. The source counter is then compared to a source threshold, and if the source counter exceeds the source threshold over the course of predetermined amount of time, a source alarm is triggered. A sliding with respect to the predetermined amount of time may also be implemented to account for total counts that may fall across or be split by set periods of time. The invention is particularly useful for detecting “spam” events and undesirable routing loops.
    Type: Application
    Filed: February 20, 2004
    Publication date: September 8, 2005
    Inventors: Thilo Rusche, Derek Kit Tam, Robert Lovell