Patents by Inventor Jacques Ledu

Jacques Ledu 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).

  • Communication device between a digital network and a telematic equipment
    Patent number: 5331640
    Abstract: A device for providing communications between an integrated services digital network (ISDN) and telematic equipment is provided. This device has an S-interface which is connected to the network, a coding-filtering-decoding circuit connected to the S-interface, and a modulator-demodulator circuit directly connected to said coding-filtering-decoding circuit and telematic equipment.
    Type: Grant
    Filed: May 29, 1990
    Date of Patent: July 19, 1994
    Assignee: Omnitel
    Inventor: Jacques Ledu