Patents by Inventor Darrell Rice Heflin

Darrell Rice Heflin 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).

  • Flexible time stamping
    Patent number: 7860125
    Abstract: In an example embodiment, an apparatus comprising a physical layer processing device that comprises logic configured to process a packet received from a physical layer interface is disclosed. The physical layer processing device logic is further configured to determine a preamble portion of the packet and a data portion of the packet. The physical layer processing device logic is further configured to insert a timestamp into the preamble portion of the packet. The physical layer processing device logic forwards the packet with the timestamp inserted into the preamble.
    Type: Grant
    Filed: January 28, 2008
    Date of Patent: December 28, 2010
    Assignee: Cisco Techology, Inc.
    Inventors: Amrik Bains, Daniel C. Biederman, Darrell Rice Heflin, Norman William Finn, Krishna Kondaka, Peter Geoffrey Jones
  • FLEXIBLE TIME STAMPING
    Publication number: 20090190589
    Abstract: In an example embodiment, an apparatus comprising a physical layer processing device that comprises logic configured to process a packet received from a physical layer interface is disclosed. The physical layer processing device logic is further configured to determine a preamble portion of the packet and a data portion of the packet. The physical layer processing device logic is further configured to insert a timestamp into the preamble portion of the packet. The physical layer processing device logic forwards the packet with the timestamp inserted into the preamble.
    Type: Application
    Filed: January 28, 2008
    Publication date: July 30, 2009
    Inventors: Amrik Bains, Daniel C. Biederman, Darrell Rice Heflin, Norman William Finn, Krishna Kondaka, Peter Geoffrey Jones