Patents by Inventor Matthew Kostelnik

Matthew Kostelnik 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).

  • Envelope tracking apparatus and method
    Patent number: 9203347
    Abstract: An apparatus comprises an amplifier having an input coupled to a radio frequency signal through a digital-to-analog circuit, an adaptive power supply having an output coupled to a bias voltage of the amplifier, wherein the output of the adaptive power supply is configured to have a shape similar to an envelope of the radio frequency signal and a feedback circuit comprising a sensing circuit and a mapping circuit, wherein the sensing circuit is configured to sense a current flowing from the adaptive power supply to the amplifier and sense the bias voltage of the amplifier, and wherein the mapping circuit is configured to sense the bias voltage of the amplifier, and wherein the mapping circuit is configured to generate a control signal for dynamically adjusting parameters of a low pass filter so as to stabilize the adaptive power supply.
    Type: Grant
    Filed: February 19, 2014
    Date of Patent: December 1, 2015
    Assignee: Futurewei Technologies, Inc.
    Inventors: Hong Jiang, Wael Al-Qaq, Matthew Kostelnik
  • Envelope Tracking Apparatus and Method
    Publication number: 20150236654
    Abstract: An apparatus comprises an amplifier having an input coupled to a radio frequency signal through a digital-to-analog circuit, an adaptive power supply having an output coupled to a bias voltage of the amplifier, wherein the output of the adaptive power supply is configured to have a shape similar to an envelope of the radio frequency signal and a feedback circuit comprising a sensing circuit and a mapping circuit, wherein the sensing circuit is configured to sense a current flowing from the adaptive power supply to the amplifier and sense the bias voltage of the amplifier, and wherein the mapping circuit is configured to sense the bias voltage of the amplifier, and wherein the mapping circuit is configured to generate a control signal for dynamically adjusting parameters of a low pass filter so as to stabilize the adaptive power supply.
    Type: Application
    Filed: February 19, 2014
    Publication date: August 20, 2015
    Applicant: FutureWei Technologies, Inc.
    Inventors: Hong Jiang, Wael Al-Qaq, Matthew Kostelnik