Patents by Inventor Ion Dracea

Ion Dracea 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).

  • Signal select in underground line location
    Patent number: 10833901
    Abstract: A transmitter and receiver for performing a signal select algorithm are provided. A transmitter for providing a signal on a line to be located includes at least one direct digital synthesizer, the direct digital synthesizer producing two component frequencies in response to an input square wave signal; and a feedback loop providing the input square wave.
    Type: Grant
    Filed: October 17, 2016
    Date of Patent: November 10, 2020
    Assignee: Metrotech Corporation
    Inventors: Stephen John Petherick, George Mainescu, Ion Dracea, Razvan Gabriel Stefanoiu, John Mark Royle
  • Signal generator with multiple outputs
    Patent number: 10063220
    Abstract: A signal generator that provides signals for multiple outputs is presented. In some embodiments, a signal generator can include switching circuitry that is coupled to provide a signal to an active output of a plurality of outputs in response to control signals; a driver that provides the signal to the switching circuitry, the signal being at a frequency appropriate for the active output; and a logic that provides the control signals to the switching circuitry and provides a waveform to the driver, the waveform having the frequency appropriate for the active output, the control signals indicating which of the plurality of outputs is the active output.
    Type: Grant
    Filed: January 22, 2016
    Date of Patent: August 28, 2018
    Assignee: METROTECH CORPORATION
    Inventors: George Mainescu, Ion Dracea, Razvan Gabriel Stefanoiu, Paul Lucian Lacatus
  • SIGNAL SELECT IN UNDERGROUND LINE LOCATION
    Publication number: 20170099168
    Abstract: A transmitter and receiver for performing a signal select algorithm are provided. A transmitter for providing a signal on a line to be located includes at least one direct digital synthesizer, the direct digital synthesizer producing two component frequencies in response to an input square wave signal; and a feedback loop providing the input square wave.
    Type: Application
    Filed: October 17, 2016
    Publication date: April 6, 2017
    Inventors: STEPHEN JOHN PETHERICK, George MAINESCU, Ion DRACEA, Razvan Gabriel STEFANOIU, John Mark ROYLE
  • Signal select in underground line location
    Patent number: 9473203
    Abstract: A transmitter and receiver for performing a signal select algorithm are provided. A transmitter for providing a signal on a line to be located includes at least one direct digital synthesizer, the direct digital synthesizer producing two component frequencies in response to an input square wave signal; and a feedback loop providing the input square wave.
    Type: Grant
    Filed: April 30, 2013
    Date of Patent: October 18, 2016
    Assignee: METROTECH CORPORATION
    Inventors: Stephen John Petherick, George Mainescu, Ion Dracea, Razvan Gabriel Stefanoiu, John Mark Royle
  • SIGNAL GENERATOR WITH MULTIPLE OUTPUTS
    Publication number: 20160218702
    Abstract: A signal generator that provides signals for multiple outputs is presented. In some embodiments, a signal generator can include switching circuitry that is coupled to provide a signal to an active output of a plurality of outputs in response to control signals; a driver that provides the signal to the switching circuitry, the signal being at a frequency appropriate for the active output; and a logic that provides the control signals to the switching circuitry and provides a waveform to the driver, the waveform having the frequency appropriate for the active output, the control signals indicating which of the plurality of outputs is the active output.
    Type: Application
    Filed: January 22, 2016
    Publication date: July 28, 2016
    Inventors: George MAINESCU, Ion DRACEA, Razvan Gabriel STEFANOIU, Paul Lucian LACATUS
  • SIGNAL SELECT IN UNDERGROUND LINE LOCATION
    Publication number: 20130287125
    Abstract: A transmitter and receiver for performing a signal select algorithm are provided. A transmitter for providing a signal on a line to be located includes at least one direct digital synthesizer, the direct digital synthesizer producing two component frequencies in response to an input square wave signal; and a feedback loop providing the input square wave.
    Type: Application
    Filed: April 30, 2013
    Publication date: October 31, 2013
    Applicant: Vivax-Metrotech
    Inventors: Stephen John Petherick, George Mainescu, Ion Dracea, Razvan Gabriel Stefanoiu, John Mark Royle