Patents by Inventor Randy Drago

Randy Drago 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).

  • Cell sequence number synchronization system and method
    Patent number: 7274713
    Abstract: The present invention provides a system and method for enabling the synchronization of a switch and an interface device. Based on a comparison of cell sequence numbers included in cells received from the interface device to a current cell time within the switch, cell time adjustment information can be transmitted to the interface device. The cell time adjustment information is used by the interface device to determine the cell sequence number that is included in cells transmitted to the switch.
    Type: Grant
    Filed: August 30, 2002
    Date of Patent: September 25, 2007
    Assignee: Altera Corporation
    Inventors: James E. Tatem, Jr., Randy A. Drago, Chi-Yu Lu, Son Truong Ngo, Rong Zhang, Vahid Tabatabaee, Kirby Lee Nell
  • Cell sequence number synchronization system amd method
    Publication number: 20040042466
    Abstract: The present invention provides a system and method for enabling the synchronization of a switch and an interface device. Based on a comparison of cell sequence numbers included in cells received from the interface device to a current cell time within the switch, cell time adjustment information can be transmitted to the interface device. The cell time adjustment information is used by the interface device to determine the cell sequence number that is included in cells transmitted to the switch.
    Type: Application
    Filed: August 30, 2002
    Publication date: March 4, 2004
    Inventors: James E. Tatem,, Randy A. Drago, Chi-Yu Lu, Son Truong Ngo, Rong Zhang, Vahid Tabatabaee, Kirby Lee Nell
  • TDMA synchronization using visibility designation
    Patent number: 5315589
    Abstract: TDMA timing is maintained by the use of visibility information transmitted among the stations in a conference. Each station monitors the identity of stations from which bursts are received. A station also receives visibility information from other stations. The station combines the information to maintain a two-dimensional Visibility Designator Byte matrix or array. A station participates in the process by periodically transmitting its own VDB array to other stations. The stations then, independently, identify a prime station by using the collected and processed information. Using the same information, a station also identifies the manner in which it will lock to the timing of the prime station.
    Type: Grant
    Filed: October 3, 1991
    Date of Patent: May 24, 1994
    Assignee: Hughes Aircraft Company
    Inventors: W. Robert Kepley, Stanley E. Kay, Ashim Roy, Steven M. Kee, Carle C. Henson, III, Adrian J. Morris, Randy Drago