Patents by Inventor Phillip Callahan

Phillip Callahan 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).

  • System and method of providing electrical isolation
    Patent number: 8095710
    Abstract: In a particular embodiment, a power sourcing equipment (PSE) device is disclosed that includes a plurality of network input/output (I/O) interfaces adapted to physically and electrically connect to a respective plurality of cables. The PSE device further includes a plurality of driver circuits. Each driver circuit of the plurality of driver circuits is coupled to a respective network I/O interface of the plurality of network I/O interfaces to send and receive data via a respective cable of the respective plurality of cables. Further, the PSE device includes a shared isolation barrier to electrically isolate control circuitry from the plurality of driver circuits.
    Type: Grant
    Filed: June 30, 2008
    Date of Patent: January 10, 2012
    Assignee: Silicon Laboratories Inc.
    Inventors: Matthew Landry, Phillip Callahan