Patents by Inventor Roman Kravchenko

Roman Kravchenko 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).

  • PACKAGE COMPRISING AN ACOUSTIC DEVICE AND A CAP SUBSTRATE COMPRISING AN INDUCTOR
    Publication number: 20230101228
    Abstract: A package that includes an acoustic device, a frame coupled to the acoustic device and a cap substrate coupled to the acoustic device through the frame. The acoustic device includes a substrate and an acoustic element coupled to the substrate. The cap substrate includes an inductor. The cap substrate is configured as a cap for the acoustic device. The package includes a cavity located between the acoustic device and the cap substrate. The frame may include a polymer frame.
    Type: Application
    Filed: September 24, 2021
    Publication date: March 30, 2023
    Inventors: Sebastian BRUNNER, Peter HAGN, Stefan Leopold HATZL, Manuel HOFER, Horst Uwe FAULHABER, Kurt WIESBAUER, Florian RAK, Roman KRAVCHENKO
  • Band-pass filter having a ring resonator
    Patent number: 7944327
    Abstract: A bandpass filter is described herein. The bandpass filter has two parallel signal branches, each connected, on an input side, to an input node and, on an output side, to an output node. The two signal branches form a ring resonator, having a wave mode with a complex amplitude of {right arrow over (U)}CW=|{right arrow over (U)}CW|exp{?j?CW} propagating in a clockwise direction and a wave mode with a complex amplitude of {right arrow over (U)}CCW=|{right arrow over (U)}CCW|exp{?j?CCW} propagating in a counterclockwise direction. The vector sum of a resulting wave {right arrow over (U)}out at the output node of the bandpass filter at two or more stop frequencies is: {right arrow over (U)}out={right arrow over (U)}CW+{right arrow over (U)}CCW=0, and |{right arrow over (U)}CW|=|{right arrow over (U)}CCW| and |?CW??CCW|=180°. The stop frequencies are arranged such that a passband is formed between two stop frequencies.
    Type: Grant
    Filed: September 26, 2006
    Date of Patent: May 17, 2011
    Assignee: Epcos AG
    Inventors: Roman Kravchenko, Denys Orlenko, Georgiy Sevskiy, Patric Heide
  • BAND-PASS FILTER
    Publication number: 20090027139
    Abstract: A bandpass filter is described herein. The bandpass filter has two parallel signal branches, each connected, on an input side, to an input node and, on an output side, to an output node. The two signal branches form a ring resonator, having a wave mode with a complex amplitude of ?CW=|?|exp{?j?CW} propagating in a clockwise direction and a wave mode with a complex amplitude of ?CCW=|?CCW|exp{?j?CCW} propagating in a counterclockwise direction. The vector sum of a resulting wave ?out at the output node of the bandpass filter at two or more stop frequencies is: ?out=?CW+?CCW=0, and |?CW|=|UCCW| and |?CW??CCW|=180°. The stop frequencies are arranged such that a passband is formed between two stop frequencies.
    Type: Application
    Filed: September 26, 2006
    Publication date: January 29, 2009
    Applicant: EPCOS AG
    Inventors: Roman Kravchenko, Denys Orlenko, Georgiy Sevskiy, Patric Heide