Patents by Inventor Dmitiry Borodulin

Dmitiry Borodulin 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: 6525605
    Abstract: A power amplifier system for use in amplifying an RF input signal exhibiting a given operating frequency within a known range of frequencies. The system includes a signal modulator that receives and modifies the input signal and provides therefrom a modified first signal. A power amplifier receives and amplifies the modified first signal. A first power detector detects the input signal and provides therefrom an average input power signal representative of the average input power thereof. A second power detector connected to the output of the amplifier provides an output average power signal representative of the average output power thereof. A controller adjusts the magnitude of said average input power signal and the magnitude of said average output power signal as a function of the operating frequency. The controller compares the adjusted said input average power signal and said adjusted output average power signal and controls said modulator in accordance therewith.
    Type: Grant
    Filed: December 23, 2000
    Date of Patent: February 25, 2003
    Assignee: Harris Corporation
    Inventors: Zhiqun Hu, Dmitiry Borodulin
  • Patent number: 6424216
    Abstract: In accordance with one aspect of the present invention, a power amplifier system is provided for amplifying an RF input signal. The system includes a signal modulator that receives and modifies an input signal and provides therefrom a modified input signal. The system further includes a plurality of M sub-power amplifiers connected together in parallel with each receiving and amplifying a portion of the modified input signal. A combiner combines the amplified portions to provide a combined output signal. A power detector receives the combined output signal and provides therefrom an average output power signal representative of the average output power thereof. A controller monitors the operation of the M sub-power amplifiers to determine if any have failed and adjusts the magnitude of the output power signal to compensate for any failure. The controller controls the modulator in accordance with a function of the magnitude of the output power signal.
    Type: Grant
    Filed: December 23, 2000
    Date of Patent: July 23, 2002
    Assignee: Harris Corporation
    Inventors: Zhiqun Mu, Dmitiry Borodulin
  • Publication number: 20010003433
    Abstract: A power amplifier system for use in amplifying an RF input signal exhibiting a given operating frequency within a known range of frequencies. The system includes a signal modulator that receives and modifies the input signal and provides therefrom a modified first signal. A power amplifier receives and amplifies the modified first signal. A first power detector detects the input signal and provides therefrom an average input power signal representative of the average input power thereof. A second power detector connected to the output of the amplifier provides an output average power signal representative of the average output power thereof. A controller adjusts the magnitude of said average input power signal and the magnitude of said average output power signal as a function of the operating frequency. The controller compares the adjusted said input average power signal and said adjusted output average power signal and controls said modulator in accordance therewith.
    Type: Application
    Filed: December 23, 2000
    Publication date: June 14, 2001
    Applicant: Harris Corporation
    Inventors: Zhiqun Hu, Dmitiry Borodulin