Patents by Inventor Raymond Lerault

Raymond Lerault 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).

  • Regeneration of signalling pulses
    Patent number: 3985970
    Abstract: Regeneration of distorted signalling pulses is obtained by means of a Schmitt trigger which is fired when the input pulse has varied by a preset value .DELTA.V the maximum voltage of said pulse being stored in a memory device so as to maintain the trigger in the present state. The trigger is switched back during the trailing edge of the pulse when the signal has varied by the same preset value .DELTA.V through inhibition of the memory device. The regeneration meets C.C.I.T.T. R2 regulation.
    Type: Grant
    Filed: April 11, 1975
    Date of Patent: October 12, 1976
    Assignee: Societe Lignes Telegraphiques et Telephoniques
    Inventors: Raymond Lerault, Jean-Claude Bulte