Patents by Inventor Thomas Schertler

Thomas Schertler 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).

  • Apparatus for sidetone damping
    Patent number: 6539091
    Abstract: An apparatus for sidetone damping can be used in telephones configured for hands-free operation. The apparatus has a reception branch with a speaker and a transmission branch with a microphone. An adaptive echo compensator is provided for compensating for echos interfering with signals in the transmission branch. A damping device for damping the transmission branch or reception branch is also provided. A device for determining the power transfer factor is provided for controlling the adaptation of the adaptive echo compensator and for adjusting the damping of the damping device.
    Type: Grant
    Filed: April 10, 1998
    Date of Patent: March 25, 2003
    Assignee: Infineon Technologies AG
    Inventor: Thomas Schertler