Patents by Inventor Michel M. Rouzier

Michel M. Rouzier 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).

  • Unit for the simultaneous switching of digital information and signalling data in P.C.M. transmission systems
    Patent number: 3997728
    Abstract: A switching unit for a multiplex pulse code modulation transmission system formed of incoming and outgoing multiplex digital circuits divided into a number of frame locking, information and signalling time slots. The information time slots are grouped in frames and contain information octets and the signalling time slots are grouped in multiframes and contain two signalling demi-octets. A transmission channel is defined by the recurrent information time slots having a given serial number in the frame and the octets contained therein and the recurrent signalling time slots having a given serial number in the multiframe and the first or the second demi-octets contained therein. The switching unit of the invention switches both the information octets and the signalling demi-octets of a selected transmission channel. Switching comprises writing and reading the information octets in and out of information buffer stores and writing and reading the signalling demi-octets in and out of signalling buffer stores.
    Type: Grant
    Filed: August 25, 1975
    Date of Patent: December 14, 1976
    Inventors: Jean F. Duquesne, Michel M. Rouzier, Maurice J. Revel, Olivier F. Louvet