Patents by Inventor Serge F. Drogi

Serge F. Drogi 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).

  • Amplitude error de-glitching circuit and method of operating
    Patent number: 8238853
    Abstract: A power amplifier controller circuit controls a power amplifier based upon an amplitude correction signal indicating the amplitude difference between the amplitude of the input signal and an attenuated amplitude of the output signal. The power amplifier controller circuit comprises an amplitude control loop and a phase control loop. The amplitude control loop adjusts the supply voltage to the power amplifier based upon the amplitude correction signal. The RF power amplifier system may reduce the corrective action of the amplitude loop during periods of relatively rapid changes in amplitude, and thus distortion can be further reduced.
    Type: Grant
    Filed: August 24, 2011
    Date of Patent: August 7, 2012
    Assignee: Quantance, Inc.
    Inventors: Serge F. Drogi, Vikas Vinayak, Martin A. Tomasz
  • Amplifier compression controller circuit
    Patent number: 8208876
    Abstract: A power amplifier controller circuit controls a power amplifier based upon an amplitude correction signal indicating the amplitude difference between the amplitude of the input signal and an attenuated amplitude of the output signal. The power amplifier controller circuit comprises an amplitude control loop and a phase control loop. The amplitude control loop adjusts the supply voltage to the power amplifier based upon the amplitude correction signal. The amplitude loop may include a variable gain amplifier adjusting the amplitude of the input signal. The amplitude loop can include a compression control block which may be configured either to adjust the gain in the variable gain amplifier or the voltage from the power supply based upon the operating level of the other, in addition to being based upon the amplitude correction signal, thus providing a way of maintaining the depth beyond the PA's compression point and allowing a control of the efficiency of the RF power amplifier.
    Type: Grant
    Filed: February 2, 2007
    Date of Patent: June 26, 2012
    Assignee: Quantance, Inc.
    Inventors: Serge F. Drogi, Vikas Vinayak
  • Phase error de-glitching circuit and method of operating
    Patent number: 8179994
    Abstract: A system including a phase comparator to compare a first signal and a second signal to generate a phase error signal, and a controller to generate an adjusted phase error signal from the phase error signal in response to an amplitude of at least one of the first signal and the second signal.
    Type: Grant
    Filed: April 15, 2010
    Date of Patent: May 15, 2012
    Assignee: Quantance, Inc.
    Inventors: Serge F. Drogi, Vikas Vinayak, Mark R. Gehring, Martin A. Tomasz
  • Amplitude Error De-Glitching Circuit and Method of Operating
    Publication number: 20120019319
    Abstract: A power amplifier controller circuit controls a power amplifier based upon an amplitude correction signal indicating the amplitude difference between the amplitude of the input signal and an attenuated amplitude of the output signal. The power amplifier controller circuit comprises an amplitude control loop and a phase control loop. The amplitude control loop adjusts the supply voltage to the power amplifier based upon the amplitude correction signal. The RF power amplifier system may reduce the corrective action of the amplitude loop during periods of relatively rapid changes in amplitude, and thus distortion can be further reduced.
    Type: Application
    Filed: August 24, 2011
    Publication date: January 26, 2012
    Applicant: QUANTANCE, INC.
    Inventors: Serge F. Drogi, Vikas Vinayak, Martin A. Tomasz
  • Amplitude error de-glitching circuit and method of operating
    Patent number: 8032097
    Abstract: A power amplifier controller circuit controls a power amplifier based upon an amplitude correction signal indicating the amplitude difference between the amplitude of the input signal and an attenuated amplitude of the output signal. The power amplifier controller circuit comprises an amplitude control loop and a phase control loop. The amplitude control loop adjusts the supply voltage to the power amplifier based upon the amplitude correction signal. The RF power amplifier system may reduce the corrective action of the amplitude loop during periods of relatively rapid changes in amplitude, and thus distortion can be further reduced.
    Type: Grant
    Filed: February 1, 2007
    Date of Patent: October 4, 2011
    Assignee: Quantance, Inc.
    Inventors: Serge F. Drogi, Vikas Vinayak, Martin A. Tomasz
  • Phase error de-glitching circuit and method of operating
    Patent number: 7876853
    Abstract: A system including a phase comparator to compare a first signal and a second signal to generate a phase error signal, and a controller to generate an adjusted phase error signal from the phase error signal in response to an amplitude of at least one of the first signal and the second signal.
    Type: Grant
    Filed: April 15, 2010
    Date of Patent: January 25, 2011
    Assignee: Quantance, Inc.
    Inventors: Serge F. Drogi, Vikas Vinayak, Mark R. Gehring, Martin A. Tomasz
  • Phase error de-glitching circuit and method of operating
    Patent number: 7869542
    Abstract: A system including a phase comparator to compare a first signal and a second signal to generate a phase error signal, and a controller to generate an adjusted phase error signal from the phase error signal in response to an amplitude of at least one of the first signal and the second signal.
    Type: Grant
    Filed: February 5, 2007
    Date of Patent: January 11, 2011
    Assignee: Quantance, Inc.
    Inventors: Serge F. Drogi, Vikas Vinayak, Mark R. Gehring, Martin A. Tomasz
  • Phase Error De-Glitching Circuit and Method of Operating
    Publication number: 20100201402
    Abstract: A system including a phase comparator to compare a first signal and a second signal to generate a phase error signal, and a controller to generate an adjusted phase error signal from the phase error signal in response to an amplitude of at least one of the first signal and the second signal.
    Type: Application
    Filed: April 15, 2010
    Publication date: August 12, 2010
    Applicant: QUANTANCE, INC.
    Inventors: Serge F. Drogi, Vikas Vinayak, Mark R. Gehring, Martin A. Tomasz
  • Phase Error De-Glitching Circuit and Method of Operating
    Publication number: 20100194440
    Abstract: A system including a phase comparator to compare a first signal and a second signal to generate a phase error signal, and a controller to generate an adjusted phase error signal from the phase error signal in response to an amplitude of at least one of the first signal and the second signal.
    Type: Application
    Filed: April 15, 2010
    Publication date: August 5, 2010
    Applicant: QUANTANCE, INC.
    Inventors: Serge F. Drogi, Vikas Vinayak, Mark R. Gehring, Martin A. Tomasz