Patents by Inventor Herve Schwartz

Herve Schwartz 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).

  • System for transmitting digital data over an electricity power line
    Patent number: 5245633
    Abstract: The invention relates to a communications system suitable for application directly to a national electricity grid and comprising a transmitter for transmitting data over a plurality of transmission frequency bands, a receiver for receiving messages over any one of the frequency bands, means for evaluating the transmission quality of each of the frequency bands, and a way to adapt the system for transmitting and receiving over the frequency band that has optimum transmission quality. The system of the invention may be applied, in particular, to remote reading of electricity meters.
    Type: Grant
    Filed: March 5, 1992
    Date of Patent: September 14, 1993
    Assignee: Schlumberger Industries
    Inventors: Herve Schwartz, Marc Muller