Patents by Inventor David Glen Edwards

David Glen Edwards 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).

  • Apparatus for configuring I/O signal levels of interfacing logic circuits
    Patent number: 7719312
    Abstract: Apparatus for configuring input/output signal levels of interfacing logic circuits operating at different voltage levels comprises: a logic circuit for operating at a first voltage level; a bank of input/output gates coupled to the logic circuit for interfacing input/output signals at a second voltage level, different from the first voltage level, to the logic circuit, the bank of gates including a port for setting the operational voltage level thereof; and a control circuit coupled to the port and governed by a control signal to configure the operational voltage level of the bank of gates to render the logic circuit and the interfacing input/output signals voltage level compatible.
    Type: Grant
    Filed: July 2, 2009
    Date of Patent: May 18, 2010
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: David Glen Edwards, Brian Matthew Johnson, Mark A. Shaw, Stuart C. Haden
  • Apparatus for configuring I/O signal levels of interfacing logic circuits
    Publication number: 20090267648
    Abstract: Apparatus for configuring input/output signal levels of interfacing logic circuits operating at different voltage levels comprises: a logic circuit for operating at a first voltage level; a bank of input/output gates coupled to the logic circuit for interfacing input/output signals at a second voltage level, different from the first voltage level, to the logic circuit, the bank of gates including a port for setting the operational voltage level thereof; and a control circuit coupled to the port and governed by a control signal to configure the operational voltage level of the bank of gates to render the logic circuit and the interfacing input/output signals voltage level compatible.
    Type: Application
    Filed: July 2, 2009
    Publication date: October 29, 2009
    Inventors: David Glen Edwards, Brian Matthew Johnson, Mark A. Shaw, Stuart C. Haden
  • Apparatus for configuring I/O signal levels of interfacing logic circuits
    Patent number: 7589560
    Abstract: Apparatus for configuring input/output signal levels of interfacing logic circuits operating at different voltage levels comprises: a logic circuit for operating at a first voltage level; a bank of input/output gates coupled to the logic circuit for interfacing input/output signals at a second voltage level, different from the first voltage level, to the logic circuit, the bank of gates including a port for setting the operational voltage level thereof; and a control circuit coupled to the port and governed by a control signal to configure the operational voltage level of the bank of gates to render the logic circuit and the interfacing input/output signals voltage level compatible.
    Type: Grant
    Filed: October 19, 2006
    Date of Patent: September 15, 2009
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: David Glen Edwards, Brian Matthew Johnson, Mark A. Shaw, Stuart C. Haden
  • Apparatus for configuring I/O signal levels of interfacing logic circuits
    Publication number: 20080094106
    Abstract: Apparatus for configuring input/output signal levels of interfacing logic circuits operating at different voltage levels comprises: a logic circuit for operating at a first voltage level; a bank of input/output gates coupled to the logic circuit for interfacing input/output signals at a second voltage level, different from the first voltage level, to the logic circuit, the bank of gates including a port for setting the operational voltage level thereof; and a control circuit coupled to the port and governed by a control signal to configure the operational voltage level of the bank of gates to render the logic circuit and the interfacing input/output signals voltage level compatible.
    Type: Application
    Filed: October 19, 2006
    Publication date: April 24, 2008
    Inventors: David Glen Edwards, Brian Matthew Johnson, Mark A. Shaw, Stuart C. Haden