Patents by Inventor Stephen George Harman

Stephen George Harman 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 signal performance monitor
    Patent number: 4097697
    Abstract: A performance monitor for determining the error density of a digitally transmitted signal in which the magnitude of a d-c offset voltage applied to one regenerator is controlled in a feedback loop so as to maintain a constant error rate between the output of it and another regenerator; the magnitude of the voltage being a measure of the degradation of the received signal and hence its error density.
    Type: Grant
    Filed: June 2, 1977
    Date of Patent: June 27, 1978
    Assignee: Northern Telecom Limited
    Inventor: Stephen George Harman