Patents by Inventor Harvey E. Solomon

Harvey E. Solomon 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).

  • Locally nulled sine-wave total power alarm for intrusion detecting optical communications systems
    Patent number: 4903339
    Abstract: An intrusion detection optical communication system modifies the original data signal to include a synchronizing periodic waveform. The receiver generates an inverted synchronizing periodic waveform signal corresponding with the transmitted signal to null the same under normal operation. When an intrusion in the optical system arises, power is extracted from the system and the nulled condition is disrupted. The disruption is detected and activates an alarm circuit when the disruption is above a threshold value.
    Type: Grant
    Filed: June 16, 1988
    Date of Patent: February 20, 1990
    Assignee: The United States of America as represented by the Director, National Security Agency
    Inventor: Harvey E. Solomon