Patents by Inventor Mark Vedder

Mark Vedder 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).

  • Method and apparatus for time-profiling T-carrier framed service
    Patent number: 6895021
    Abstract: A method and apparatus for frame-level, sub-second error reporting is disclosed. Trouble profiles are compiled using synchronous constant-frame error detection and, during a transmission hiatus, pseudo-synchronous constant-frame error detection so as to describe transmission integrity down to the millisecond. This provides profiles that can be used to trace the cause(s) of outages to complex networks including outages from network activity. The outage profiles obtained from the described device can be used to determine and confirm the source of sub-second, or more, transmission outages.
    Type: Grant
    Filed: September 25, 2003
    Date of Patent: May 17, 2005
    Assignee: AT&T Corp.
    Inventor: Mark Vedder
  • Method and apparatus for time-profiling T-carrier framed service
    Patent number: 6654375
    Abstract: A method and apparatus for frame-level, sub-second error reporting is disclosed. Trouble profiles are compiled using synchronous constant-frame error detection and, during a transmission hiatus, pseudo-synchronous constant-frame error detection so as to describe transmission integrity down to the millisecond. This provides profiles that can be used to trace the cause(s) of outages to complex networks including outages from network activity. The outage profiles obtained from the described device can be used to determine and confirm the source of sub-second, or more, transmission outages.
    Type: Grant
    Filed: December 23, 1999
    Date of Patent: November 25, 2003
    Assignee: AT&T Corp.
    Inventor: Mark Vedder
  • Methods and apparatus for detecting and locating cable failure in communication systems
    Patent number: 6154447
    Abstract: In switching centers serving multiple local access providers, a problem arises in detecting cable failure and identifying the provider of the failed cable connected between the switching center and remote terminals. A test circuit installed in each cable port of the switching center detects failed cables; identifies the operator of the failed cable, and designates the cable end at which the failure occurs. The test circuit includes a signal detector and a signal generator and monitor connected through a switching device to the cables. A data signal Ds is transmitted on the cables. When the detector recognizes a loss of a data signal Ds exceeding a threshold a failed cable has occurred at one end of the cable or the other. The switch is activated by the signal loss to connect the signal generator and monitor to determine at which cable end the cable has failed. A reference signal Rs is injected into a cable by the signal generator and monitor.
    Type: Grant
    Filed: September 10, 1997
    Date of Patent: November 28, 2000
    Assignee: AT&T Corp.
    Inventor: Mark Vedder