Patents by Inventor Michael L Vanderford

Michael L Vanderford 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 Of Calibrating An Echo Canceller Using Preemptive Tone Sequencing
    Publication number: 20100128883
    Abstract: A system for calibrating an echo canceller using a preemptive tone sequence is provided. The system includes a node and a tone sequence management unit operatively connected to the node. The node includes a speaker, a microphone, and the echo canceller operatively connected to the microphone. The tone sequence management unit transmits a digital tone sequence to the speaker. The speaker plays the digital tone sequence. The microphone records an output of the speaker, converts the output into a digital data segment, and transmits the digital data segment to the echo canceller. The echo canceller is calibrated based on the digital data segment.
    Type: Application
    Filed: April 27, 2007
    Publication date: May 27, 2010
    Inventor: Michael L. Vanderford
  • Shared drive that provides shared access to editable files in a database
    Patent number: 7505971
    Abstract: A system includes a database, a shared drive and a link update routine. The database includes a plurality of files and access information. The access information indicates which users have edit access to which files in the database. The shared drive contains for each user of the shared drive a directory structure that includes symbolic links to files in the database to which the user has edit access. The link update routine scans the access information in the database and updates the symbolic links in the shared drive to take into account changes made to the access information.
    Type: Grant
    Filed: June 28, 2002
    Date of Patent: March 17, 2009
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Michael R Sander, Damien R Forkner, LeMoyne F Hadley, Jeffrey M Munsey, Anne R Pfau, Michael L Vanderford
  • Shared drive that provides shared access to editable files in a database
    Publication number: 20040002990
    Abstract: A system includes a database, a shared drive and a link update routine. The database includes a plurality of files and access information. The access information indicates which users have edit access to which files in the database. The shared drive contains for each user of the shared drive a directory structure that includes symbolic links to files in the database to which the user has edit access. The link update routine scans the access information in the database and updates the symbolic links in the shared drive to take into account changes made to the access information.
    Type: Application
    Filed: June 28, 2002
    Publication date: January 1, 2004
    Inventors: Michael R. Sander, Damien R. Forkner, LeMoyne F. Hadley, Jeffrey M. Munsey, Anne R. Pfau, Michael L. Vanderford