Patents by Inventor Dimitry Dobrenko

Dimitry Dobrenko 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).

  • Power amplifier with feedback
    Patent number: 6252784
    Abstract: A device for generating an electrical signal of a required form, preferably a sine wave suitable for a ringer, comprising an amplifier for producing an output signal of a required form, a power supply generator for supplying a power supply voltage to the amplifier, and a circuit for producing a first feedback signal to control the power supply voltage based on the output signal. Additionally, the amplifier provides comparison of a reference input signal with a second feedback signal formed from the output signal.
    Type: Grant
    Filed: March 9, 2000
    Date of Patent: June 26, 2001
    Assignee: ECI Telecom Ltd
    Inventor: Dimitry Dobrenko