Patents by Inventor Joseph Gerard Petrofsky

Joseph Gerard Petrofsky 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: 7969189
    Abstract: System and method for a clock driver. An input taking circuit is used for receiving small-signal logic inputs. A voltage follower circuit is coupled to the input taking circuit and used to generate a set of voltage follower outputs. An output circuit is coupled to the voltage follower circuit to receive the set of voltage follower outputs as inputs and generate output signals. The voltage follower circuit is coupled to a switching circuit, that is connected to the set of voltage follower outputs and is deployed for reducing the phase noise level of the output signals.
    Type: Grant
    Filed: November 24, 2009
    Date of Patent: June 28, 2011
    Assignee: Linear Technology Corporation
    Inventor: Joseph Gerard Petrofsky
  • Publication number: 20110121859
    Abstract: System and method for a clock driver. An input taking circuit is used for receiving small-signal logic inputs. A voltage follower circuit is coupled to the input taking circuit and used to generate a set of voltage follower outputs. An output circuit is coupled to the voltage follower circuit to receive the set of voltage follower outputs as inputs and generate output signals. The voltage follower circuit is coupled to a switching circuit, that is connected to the set of voltage follower outputs and is deployed for reducing the phase noise level of the output signals.
    Type: Application
    Filed: November 24, 2009
    Publication date: May 26, 2011
    Inventor: Joseph Gerard PETROFSKY
  • Patent number: 6651036
    Abstract: A circuit that provides the root-mean-square (RMS) value of an input signal and that detects and independently recovers from an output fault condition is provided. The circuit includes reconfigurable circuitry that changes from normal operating mode to fault recovery mode when an output fault is detected. During fault recovery mode, the circuit provides a modified output signal that allows independent recovery from an output fault condition. Once recovery is complete, the circuit returns to normal operating mode and provides a DC output signal proportional to the RMS value of an AC input signal.
    Type: Grant
    Filed: December 18, 2002
    Date of Patent: November 18, 2003
    Assignee: Linear Technology Corporation
    Inventor: Joseph Gerard Petrofsky
  • Publication number: 20030097239
    Abstract: A circuit that provides the root-mean-square (RMS) value of an input signal and that detects and independently recovers from an output fault condition is provided. The circuit includes reconfigurable circuitry that changes from normal operating mode to fault recovery mode when an output fault is detected. During fault recovery mode, the circuit provides a modified output signal that allows independent recovery from an output fault condition. Once recovery is complete, the circuit returns to normal operating mode and provides a DC output signal proportional to the RMS value of an AC input signal.
    Type: Application
    Filed: December 20, 2002
    Publication date: May 22, 2003
    Applicant: Linear Technology Corporation
    Inventor: Joseph Gerard Petrofsky
  • Patent number: 6516291
    Abstract: A circuit that provides the root-mean-square (RMS) value of an input signal and that detects and independently recovers from an output fault condition is provided. The circuit includes reconfigurable circuitry that changes from normal operating mode to fault recovery mode when an output fault is detected. During fault recovery mode, the circuit provides a modified output signal that allows independent recovery from an output fault condition. Once recovery is complete, the circuit returns to normal operating mode and provides a DC output signal proportional to the RMS value of an AC input signal.
    Type: Grant
    Filed: December 13, 2000
    Date of Patent: February 4, 2003
    Assignee: Linear Technology Corporation
    Inventor: Joseph Gerard Petrofsky
  • Publication number: 20020103627
    Abstract: A circuit that provides the root-mean-square (RMS) value of an input signal and that detects and independently recovers from an output fault condition is provided. The circuit includes reconfigurable circuitry that changes from normal operating mode to fault recovery mode when an output fault is detected. During fault recovery mode, the circuit provides a modified output signal that allows independent recovery from an output fault condition. Once recovery is complete, the circuit returns to normal operating mode and provides a DC out signal proportional to the RMS value of an AC input signal.
    Type: Application
    Filed: December 13, 2000
    Publication date: August 1, 2002
    Inventor: Joseph Gerard Petrofsky