Patents by Inventor Charles M. Grandgent

Charles M. Grandgent 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: 8611520
    Abstract: The present invention comprises a method for audio/video conferencing. In a preferred embodiment, the method comprises using a dynamic threshold value to determine whether there is speech on a line. One aspect, the method comprises determining a dynamic threshold value based on one or more characteristics of signals received on a port, associating that dynamic threshold value with the port; and comparing one or more characteristics of signals subsequently received on the port to the dynamic threshold value. Signals received over a plurality of ports are summed, but for ports whose signal characteristics have a specified relationship to the dynamic threshold value associated with that port, signals are not contained in the sum.
    Type: Grant
    Filed: January 30, 2012
    Date of Patent: December 17, 2013
    Assignee: Polycom, Inc.
    Inventors: William O'Malley, Charles M. Grandgent
  • Publication number: 20130028404
    Abstract: The present invention comprises a method for audio/video conferencing. In a preferred embodiment, the method comprises using a dynamic threshold value to determine whether there is speech on a line. One aspect, the method comprises determining a dynamic threshold value based on one or more characteristics of signals received on a port, associating that dynamic threshold value with the port; and comparing one or more characteristics of signals subsequently received on the port to the dynamic threshold value. Signals received over a plurality of ports are summed, but for ports whose signal characteristics have a specified relationship to the dynamic threshold value associated with that port, signals are not contained in the sum.
    Type: Application
    Filed: January 30, 2012
    Publication date: January 31, 2013
    Inventors: William O'Malley, Charles M. Grandgent
  • Patent number: 8111820
    Abstract: The present invention comprises a method for audio/video conferencing. In a preferred embodiment, the method comprises using a dynamic threshold value to determine whether there is speech on a line. One aspect, the method comprises determining a dynamic threshold value based on one or more characteristics of signals received on a port, associating that dynamic threshold value with the port; and comparing one or more characteristics of signals subsequently received on the port to the dynamic threshold value. Signals received over a plurality of ports are summed, but for ports whose signal characteristics have a specified relationship to the dynamic threshold value associated with that port, signals are not contained in the sum.
    Type: Grant
    Filed: March 16, 2004
    Date of Patent: February 7, 2012
    Assignee: Polycom, Inc.
    Inventors: William O'Malley, Charles M. Grandgent
  • Publication number: 20040174973
    Abstract: The present invention comprises a method for audio/video conferencing. In a preferred embodiment, the method comprises using a dynamic threshold value to determine whether there is speech on a line. One aspect, the method comprises determining a dynamic threshold value based on one or more characteristics of signals received on a port, associating that dynamic threshold value with the port; and comparing one or more characteristics of signals subsequently received on the port to the dynamic threshold value. Signals received over a plurality of ports are summed, but for ports whose signal characteristics have a specified relationship to the dynamic threshold value associated with that port, signals are not contained in the sum.
    Type: Application
    Filed: March 16, 2004
    Publication date: September 9, 2004
    Inventors: William O'Malley, Charles M. Grandgent
  • Patent number: 6721411
    Abstract: The present invention comprises a method for audio/video conferencing. In a preferred embodiment, the method comprises using a dynamic threshold value to determine whether there is speech on a line. One aspect, the method comprises determining a dynamic threshold value based on one or more characteristics of signals received on a port, associating that dynamic threshold value with the port; and comparing one or more characteristics of signals subsequently received on the port to the dynamic threshold value. Signals received over a plurality of ports are summed, but for ports whose signal characteristics have a specified relationship to the dynamic threshold value associated with that port, signals are not contained in the sum.
    Type: Grant
    Filed: April 30, 2002
    Date of Patent: April 13, 2004
    Assignee: Voyant Technologies, Inc.
    Inventors: William O'Malley, Charles M. Grandgent
  • Publication number: 20030021400
    Abstract: In a preferred embodiment, the system of the present invention comprises two or more bridge servers; one or more conferencing servers, each of which is configured to communicate with at least one of said bridge servers; and a transaction server, in communication with each conferencing server. The transaction server is configured to manage conferencing resources among the conferencing servers. Each conferencing server is preferably configured to monitor bridge status for each bridge assigned to it and to provide bridge status information to the transaction server. The transaction server and conferencing servers are preferably further configured such that bridge servers assigned to a first conferencing server are subsequently assigned to a second conferencing server by the transaction server if the first conferencing server fails.
    Type: Application
    Filed: April 30, 2002
    Publication date: January 30, 2003
    Inventors: Charles M. Grandgent, Candace Deliman, Dean E. Harvey, Brandon Jackson
  • Publication number: 20020172342
    Abstract: The present invention comprises a method for audio/video conferencing. In a preferred embodiment, the method comprises using a dynamic threshold value to determine whether there is speech on a line. One aspect, the method comprises determining a dynamic threshold value based on one or more characteristics of signals received on a port, associating that dynamic threshold value with the port; and comparing one or more characteristics of signals subsequently received on the port to the dynamic threshold value. Signals received over a plurality of ports are summed, but for ports whose signal characteristics have a specified relationship to the dynamic threshold value associated with that port, signals are not contained in the sum.
    Type: Application
    Filed: April 30, 2002
    Publication date: November 21, 2002
    Inventors: William O'Malley, Charles M. Grandgent