Patents by Inventor Laurent Ismert

Laurent Ismert 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).

  • Two-band mobile telephone and method of use
    Patent number: 6690946
    Abstract: To carry out tests on a mobile telephony network, a two-band mobile telephone is used. This mobile telephone is improved by a parametrizing device by which the mobile telephone declares itself to the network either as a single-band telephone in a first frequency band, or as a single-band telephone is a second frequency band, or as a two-band telephone in both these frequency bands. The network then exploits the mobile telephone in the mode corresponding to its declaration. It is possible with only one instrument, to measure all the transmission characteristics of the network.
    Type: Grant
    Filed: October 27, 2000
    Date of Patent: February 10, 2004
    Assignee: Sagem SA
    Inventors: Laurent Ismert, Bernard Combes