Patents by Inventor Eric C Lohff

Eric C Lohff 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).

  • Digital-cross-connect system single element restoration technique
    Patent number: 6707907
    Abstract: Restoration of an inoperative network element (12) such as a digital cross-connect system is accomplished by receiving updates from each element as they occur in a local controller network (18). The local controller network forwards the updates to a DCS-Operations support system (22) that generates a restoration map for each element in its native language, and thereafter updates each map upon receipt of each update. In response to a user command, the DCS-operation system directs (transmits) the update map either to directly the inoperative element or to an intermediate element to achieve restoration.
    Type: Grant
    Filed: September 18, 1998
    Date of Patent: March 16, 2004
    Assignee: AT&T Corp.
    Inventors: Richard L. Guzman, Eric C Lohff, Barbara E Walsh, Marcus L White, Ihor J. B. Wynarczuk