Patents by Inventor Stefan Berek

Stefan Berek 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).

  • SAW TRANSDUCER WITH SUPPRESSED MODE CONVERSION
    Publication number: 20170324394
    Abstract: A transducer for SAW-type or PSAW-type acoustic waves is proposed in which the dielectric (DK) is applied onto the substrate so that the gap (GP) between the ends of the electrode fingers and the opposite bus electrode is completely filled with said dielectric (DK), but the active area of the transducer, thus transversal overlap area (UB) of the electrode fingers, is not covered by said dielectric.
    Type: Application
    Filed: December 2, 2015
    Publication date: November 9, 2017
    Inventors: Thomas EBNER, Markus MAYER, Ulrike RÖSLER, Gholamreza DADGAR JAVID, Stefan BEREK
  • Electroacoustic transducer having reduced losses due to transverse emission and improved performance due to suppression of transverse modes
    Patent number: 9673779
    Abstract: An electroacoustic transducer has reduced loss due to acoustic waves emitted in the transverse direction. For this purpose, a transducer comprises a central excitation area, inner edge areas flanking the central excitation area, outer edge areas flanking the inner edge areas, and areas of the busbar flanking the outer edge areas. The longitudinal speed of the areas can be set so that the excitation profile of a piston mode is obtained.
    Type: Grant
    Filed: December 22, 2015
    Date of Patent: June 6, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Werner Ruile, Markus Mayer, Ulrike Rösler, Markus Hauser, Ingo Bleyl, Karl-Christian Wagner, Wolfgang Sauer, Michael Jakob, Thomas Ebner, Edgar Schmidhammer, Stefan Berek, Christoph Eggs
  • Component operating with acoustic waves and method for producing same
    Patent number: 9455684
    Abstract: The invention concerns a component (B) operating with acoustic waves, in which the reflection and excitation are largely decoupled. For this purpose, a component comprises a dielectric (DL) which is arranged between an electrode finger (EF) and a piezoelectric substrate (PSU) and at least partially overlaps the electrode finger.
    Type: Grant
    Filed: February 8, 2012
    Date of Patent: September 27, 2016
    Assignee: EPCOS AG
    Inventors: Werner Ruile, Edgar Schmidhammer, Ulrike Rösler, Stefan Berek
  • Electroacoustic Transducer having Reduced Losses due to Transverse Emission and Improved Performance due to Suppression of Transverse Modes
    Publication number: 20160126928
    Abstract: An electroacoustic transducer has reduced loss due to acoustic waves emitted in the transverse direction. For this purpose, a transducer comprises a central excitation area, inner edge areas flanking the central excitation area, outer edge areas flanking the inner edge areas, and areas of the busbar flanking the outer edge areas. The longitudinal speed of the areas can be set so that the excitation profile of a piston mode is obtained.
    Type: Application
    Filed: December 22, 2015
    Publication date: May 5, 2016
    Inventors: Werner Ruile, Markus Mayer, Ulrike Rösler, Markus Hauser, Ingo Bleyl, Karl-Christian Wagner, Wolfgang Sauer, Michael Jakob, Thomas Ebner, Edgar Schmidhammer, Stefan Berek, Christoph Eggs
  • Electroacoustic transducer having reduced losses due to transverse emission and improved performance due to suppression of transverse modes
    Patent number: 9257960
    Abstract: An electroacoustic transducer has reduced loss due to acoustic waves emitted in the transverse direction. For this purpose, a transducer comprises a central excitation area, inner edge areas flanking the central excitation area, outer edge areas flanking the inner edge areas, and areas of the busbar flanking the outer edge areas. The longitudinal speed of the areas can be set so that the excitation profile of a piston mode is obtained.
    Type: Grant
    Filed: September 15, 2010
    Date of Patent: February 9, 2016
    Assignee: EPCOS AG
    Inventors: Werner Ruile, Markus Mayer, Ulrike Rösler, Markus Hauser, Ingo Bleyl, Karl-Christian Wagner, Wolfgang Sauer, Michael Jakob, Thomas Ebner, Edgar Schmidhammer, Stefan Berek, Christoph Eggs
  • COMPONENT OPERATING WITH ACOUSTIC WAVES AND METHOD FOR PRODUCING SAME
    Publication number: 20140035436
    Abstract: The invention concerns a component (B) operating with acoustic waves, in which the reflection and excitation are largely decoupled. For this purpose, a component comprises a dielectric (DL) which is arranged between an electrode finger (EF) and a piezoelectric substrate (PSU) and at least partially overlaps the electrode finger.
    Type: Application
    Filed: February 8, 2012
    Publication date: February 6, 2014
    Applicant: EPCOS AG
    Inventors: Werner Ruile, Edgar Schmidhammer, Ulrike Rösler, Stefan Berek
  • Electroacoustic Transducer having Reduced Losses due to Transverse Emission and Improved Performance due to Suppression of Transverse Modes
    Publication number: 20130051588
    Abstract: An electroacoustic transducer has reduced loss due to acoustic waves emitted in the transverse direction. For this purpose, a transducer comprises a central excitation area, inner edge areas flanking the central excitation area, outer edge areas flanking the inner edge areas, and areas of the busbar flanking the outer edge areas. The longitudinal speed of the areas can be set so that the excitation profile of a piston mode is obtained.
    Type: Application
    Filed: September 15, 2010
    Publication date: February 28, 2013
    Applicant: EPCOS AG
    Inventors: Werner Ruile, Markus Mayer, Ulrike Rösler, Markus Hauser, Ingo Bleyl, Karl-Christian Wagner, Wolfgang Sauer, Michael Jakob, Thomas Ebner, Edgar Schmidhammer, Stefan Berek, Christoph Eggs