Patents by Inventor Stephane Razafimandiby

Stephane Razafimandiby 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).

  • Publication number: 20080024244
    Abstract: A filtering circuit based on a lattice structure comprising a first and a second input and a first and second output. The circuit further comprises two series impedance and two parallel impedance which each comprises an acoustic resonator associated with two inductive and capacitive components which can be adjusted by a first control value. The second and fourth impedance comprise each an acoustic resonator associated to two inductive and capacitive components which are adjustable by means of a second control value. A control circuit generates the two control values which simultaneously comprise a common mode potential and a differential mode potential which allows the emergence of first and second pass bands which are usable for realizing two different bandpass filters.
    Type: Application
    Filed: July 27, 2007
    Publication date: January 31, 2008
    Applicant: STMicroelectronics SA
    Inventors: Andrea Cathelin, Stephane Razafimandiby, Andreas Kaiser