Patents by Inventor Allen Shum

Allen Shum 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).

  • Stochastic unified multiple access to a communications channel
    Patent number: 7424029
    Abstract: In an example of the method aspect of the invention, a first user detects transmissions from a first group of users over a multiple access communications channel. The number of users in the first group of users are counted, and the value of a variable N is set equal to the number counted plus one. The method further includes determining whether the first user has data to transmit during a first time slot, and if so, the method also includes generating a first random number, calculating 1/N, and determining if the first random number is less than 1/N. If it is determined that the first random number is less than 1/N, then a signal is transmitted from the first user during the first time slot.
    Type: Grant
    Filed: May 30, 2003
    Date of Patent: September 9, 2008
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Allen Shum
  • Asynchronous transfer mode cell loss estimator
    Patent number: 5963542
    Abstract: A method for estimating the cell loss rate of an asynchronous transfer mode statistical multiplexer comprises the steps of finding a multiplexer state probability distribution and estimating the cell loss rate from the multiplexer state probability distribution.
    Type: Grant
    Filed: September 3, 1996
    Date of Patent: October 5, 1999
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Allen Shum