Patents by Inventor Petra Dentgen

Petra Dentgen 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).

  • Near-echo suppression
    Patent number: 7039020
    Abstract: The hybrid circuit can be used to substantially reduce near echo signals. The circuit includes a balanced 2-wire to 4-wire hybrid for interconnecting a two wire receive path and a two wire transmit path to a two wire transmission line. The two wire receive path connects the balanced hybrid to an A/D converter and the two wire transmit path connects a D/A converter to the balanced hybrid. The two wire receive path contains a filter, dimensioned to remove signals transmitted from the D/A converter. The invention is particularly adapted for use with FDD and OFDD.
    Type: Grant
    Filed: October 27, 1998
    Date of Patent: May 2, 2006
    Assignee: STMicroelectronics N.V.
    Inventors: Gunnar Bahlenberg, Daniel Bengtsson, Siwert Hakansson, Anders Isaksson, Lars-Ake Isaksson, Mikael Isaksson, Magnus Johansson, Mauritz Lahti, Lis-Marie Ljunggren, Hans Lundberg, Tomas Nordstrom, Lennart Olsson, Sven-Rune Olofsson, Tomas Stefansson, Hans Oman, Goran Okvist, Per Odling, Petra Dentgen, Franck Sjöberg