Patents by Inventor Oddleif Westby

Oddleif Westby 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).

  • Method and apparatus for information transmission via power supply lines
    Patent number: 6005477
    Abstract: A method and a system for rapid and interference-free data communication via power supply networks at any voltage levels. The combined effects of interference from signal distortion, frequency-selective signal attenuation or noise and from pulsed interference is reduced by using an MCM multicarrier modulation method. By combining the MCM method with a specially adapted interleaver (data scrambler) and error-protection coding, the error rates can be drastically reduced and the transmission rates can be increased to considerably more than 2 kbit/s.
    Type: Grant
    Filed: April 15, 1998
    Date of Patent: December 21, 1999
    Assignee: ABB Research Ltd.
    Inventors: Bernhard Deck, Josef Lehmann, Stefan Ramseier, Oddleif Westby