Patents by Inventor Darrell Rice

Darrell Rice 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).

  • 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
  • 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
  • Patent number: 4342061
    Abstract: A circuit is presented for coupling a storage capacitor to a capacitor shorting switch whereby voltage across the shorting switch is maintained at a reduced potential relative to the storage capacitor so that the voltage and potential current at the switch contacts is maintained at levels wherein it is impossible for the release of sufficient energy into the surrounding atmosphere to cause ignition of a flammable mixture of gas and air. This is accomplished by coupling the storage capacitor to the switching device via a variable voltage divider network controlled by an SCR with a zener diode controlled gate circuit and a varistor.
    Type: Grant
    Filed: March 4, 1981
    Date of Patent: July 27, 1982
    Assignee: Frank W. Murphy Manufacturer, Inc.
    Inventors: Darrell Rice, Bill E. Baker