Patents by Inventor Phil Couch

Phil Couch 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).

  • Methods and apparatuses for using programmable logic for protocol controls in a passive optical network
    Patent number: 6940882
    Abstract: The present invention provides an optical network unit having a control means. The control means uses programmable logic to cause the optical network unit to function within established protocols.
    Type: Grant
    Filed: July 24, 2002
    Date of Patent: September 6, 2005
    Assignee: Carrier Access Corporation
    Inventor: Phil Couch
  • Methods and apparatuses for direct digital drive of a laser in a passive optical network
    Patent number: 6834065
    Abstract: Apparatus for digitally driving a laser in a passive optical network includes a programmable current source having an output terminal connected to supply current to the laser. The programmable current source includes a plurality of output pins, each of the outputs pins has a voltage thereon, all of the output pins are connected to the output terminal, and one or more of the output pins is connected to the output terminal through a resistor. A controller supplies a digital control signal to the programmable current source to specify which of the output pins are to be turned on, to thereby determine the magnitude of a current supplied to the laser from the output terminal.
    Type: Grant
    Filed: July 9, 2002
    Date of Patent: December 21, 2004
    Assignee: Carrier Access Corporation
    Inventor: Phil Couch
  • Methods and apparatuses for measuring and controlling a laser output in a passive optical network
    Patent number: 6792018
    Abstract: The present invention provides apparatuses and methods for measurement and control of a laser in a passive optical network. In particular, prior to receiving a transmission grant, the laser is pre-driven at a current below a predetermined threshold to “pre-charge” the laser. Also, during the zero level measurement interval, the laser is driven at a non-zero level and the required zero level current is calculated.
    Type: Grant
    Filed: July 10, 2002
    Date of Patent: September 14, 2004
    Assignee: Carrier Access Corporation
    Inventor: Phil Couch
  • Methods and apparatuses for using programmable logic for protocol controls in a passive optical network
    Publication number: 20030219254
    Abstract: The present invention provides an optical network unit having a control means. The control means uses programmable logic to cause the optical network unit to function within established protocols.
    Type: Application
    Filed: July 24, 2002
    Publication date: November 27, 2003
    Inventor: Phil Couch
  • Methods and apparatuses for direct digital drive of a laser in a passive optical network
    Publication number: 20030219048
    Abstract: The present invention provides a direct digital drive for a laser in a passive optical network. The direct digital drive supplies drive current to the laser.
    Type: Application
    Filed: July 9, 2002
    Publication date: November 27, 2003
    Inventor: Phil Couch
  • Methods and apparatuses for measuring and controlling a laser output in a passive optical network
    Publication number: 20030219050
    Abstract: The present invention provides apparatuses and methods for measurement and control of a laser in a passive optical network. In particular, prior to receiving a transmission grant, the laser is pre-driven at a current below a predetermined threshold to “pre-charge” the laser. Also, during the zero level measurement interval, the laser is driven at a non-zero level and the required zero level current is calculated.
    Type: Application
    Filed: July 10, 2002
    Publication date: November 27, 2003
    Inventor: Phil Couch