Patents by Inventor Jo Ann Blatchford

Jo Ann Blatchford 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).

  • Telecommunications system SS7 signaling interface with signal transfer capability
    Patent number: 5384840
    Abstract: Network elements in a telecommunications network, such as toll switches, databases and the like, are provided with redundant SS7 signaling interfaces based on different software designs. At least one of the interfaces, referred to as a network endpoint signaling transfer point, or NESTP, is loosely coupled to its host and has signaling transfer point (STP) capabilities. In a routing table within the NESTP, a plurality of prioritized route lists are provided for at least some destinations, the list that is used to route a particular message to such a destination being a function of the route by which that message arrived at the NESTP.
    Type: Grant
    Filed: October 9, 1992
    Date of Patent: January 24, 1995
    Assignee: AT&T Corp.
    Inventors: Jo Ann Blatchford, Pamela L. DeFazio, Joel K. Young