Patents by Inventor Jean-Pascal Bordeau

Jean-Pascal Bordeau 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).

  • Patent number: 6330437
    Abstract: A method of verifying effective radio range increases the distance over which wireless mobiles can be used around the base station. The level of the radio field received by the base station is measured to detect a range-limit electric signal. Instead of cutting off the communication at the detection of this signal, a presence verification protocol is initiated that includes exchanging presence confirmation after messages between the base station and the handset, and cutting off the communication only when one of the parts no longer receives a confirmation message after a predefined time period.
    Type: Grant
    Filed: March 24, 1999
    Date of Patent: December 11, 2001
    Assignee: U.S. Philips Corporation
    Inventors: Olivier Bozzetto, Jean-Pascal Bordeau