Patents by Inventor Frederic G. Surand

Frederic G. Surand 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).

  • System and method for providing real time indicator of voice transmission quality
    Patent number: 8300536
    Abstract: A method for providing real time indicator of voice transmission quality in a Voice over Internet Protocol (VoIP) network is disclosed. The method allows to receive, at regular time interval during a call, a digital signature from a source call device. The received signature is compared to a referential signature stored on the destination devices, and in case the received signature falls out of the referential signature, a quality indication message is transmitted back to the source call device.
    Type: Grant
    Filed: August 22, 2007
    Date of Patent: October 30, 2012
    Assignee: International Business Machines Corporation
    Inventors: Robert C. Hughes, Andrew L. Massey, Frederic G. Surand