Patents by Inventor Philip Tracy

Philip Tracy 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: 8891267
    Abstract: A circuit arrangement with standby mode minimizing power and/or current consumption having a mains AC power supply terminals and an active circuit capable of converting said mains AC power to lower voltage DC levels for operating in an active mode or in a standby mode as required by an appliance such that the selection of the current sensing resistor value for said current sensing resistor limits the maximum peak current through the FET so that the current sensing resistor arrangement is capable of providing significant increases in a steeper rise time of the current at around mains AC power supply zero crossing, so that current is pulled high while the mains AC power supply voltage is low.
    Type: Grant
    Filed: August 31, 2011
    Date of Patent: November 18, 2014
    Assignee: Hendon Semiconductors Pty. Ltd.
    Inventors: Paul Bourne, Philip Tracy, David Murfett
  • Publication number: 20130201735
    Abstract: A circuit arrangement with standby mode minimising power and/or current consumption having a mains AC power supply terminals and an active circuit capable of converting said mains AC power to lower voltage DC levels for operating in an active mode or in a standby mode as required by an appliance such that the selection of the current sensing resistor value for said current sensing resistor limits the maximum peak current through the FET so that the current sensing resistor arrangement is capable of providing significant increases in a steeper rise time of the current at around mains AC power supply zero crossing, so that current is pulled high while the mains AC power supply voltage is low.
    Type: Application
    Filed: August 31, 2011
    Publication date: August 8, 2013
    Applicant: HENDON SEMICONDUCTORS PTY LTD
    Inventors: Paul Bourne, Philip Tracy, David Murfett
  • Patent number: 7840734
    Abstract: A bus buffer can include a data buffer and a clock signal buffer. The data buffer for can include two symmetrical buffer circuits with an output signal that can follow the input voltage to provide bi-directional buffer action for a data path of the bus buffer. The clock buffer can operate in a forward or reverse direction, where the signal direction for the clock signal path in the bus buffer can be controlled with a direction input. The bus buffer can also include an enable circuit for enabling the data path and the clock signal path.
    Type: Grant
    Filed: December 19, 2007
    Date of Patent: November 23, 2010
    Assignee: Hendon Semiconductors Pty Ltd.
    Inventors: David Murfett, Paul Bourne, Philip Tracy
  • Publication number: 20080183919
    Abstract: A bus buffer can include a data buffer and a clock signal buffer. The data buffer for can include two symmetrical buffer circuits with an output signal that can follow the input voltage to provide bi-directional buffer action for a data path of the bus buffer. The clock buffer can operate in a forward or reverse direction, where the signal direction for the clock signal path in the bus buffer can be controlled with a direction input. The bus buffer can also include an enable circuit for enabling the data path and the clock signal path.
    Type: Application
    Filed: December 19, 2007
    Publication date: July 31, 2008
    Applicant: Hendon Semiconductors Pty. Ltd.
    Inventors: Paul Bourne, David Murfett, Philip Tracy, Kay Malcolm, Potter Mark, Crawford John