Patents by Inventor Ronald R. Wellard

Ronald R. Wellard 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).

  • Alternate network fallback for IP telephony
    Patent number: 6510219
    Abstract: The invention relates to methods and apparatus for switching a call from an unreliable network to an alternate network when a QoS of the network falls below a predetermined threshold. The invention includes a telephone call switching apparatus which monitors the QoS of the call. When the QoS of the call falls below a first threshold the switching apparatus establishes a connection over an alternate network. If after a predetermined time period or after the QoS falls below another predetermined threshold the call is transferred to the alternate network connection. While the switching apparatus is maintaining multiple network connections, the idle network connection remains muted.
    Type: Grant
    Filed: September 30, 1999
    Date of Patent: January 21, 2003
    Assignee: Nortel Networks Limited
    Inventors: Ronald R. Wellard, Kevin W. Golka, John R. Donak
  • Method and apparatus to increase cable connector density in equipment
    Patent number: 6497578
    Abstract: A cable card having increased cable connector density is provided. The cable card has a non-planar surface and, therefore, more surface area than a planar cable card having the same outside dimensions. The increased surface area of the non-planar surface permits more connectors of a given size to be located on the cable card.
    Type: Grant
    Filed: April 11, 2001
    Date of Patent: December 24, 2002
    Assignee: Nortel Networks Limited
    Inventors: Herman Kwong, Ronald R. Wellard, Leslie J. Crane, Stephen Dragan, Dieter D. Mueller, Greg J. Clouston