Patents by Inventor Ilan Haran

Ilan Haran 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).

  • Intrusion detector
    Patent number: 4521768
    Abstract: An intrusion detection system which reliably detects intrusions while minimizing false alarms by time-analyzing significant signals indicative of intrusions. The time length of each significant signal is measured, the time lengths of successive significant signals are accumulated, and an intrusion signal is generated if the accumulated time length reaches a first preselected time length. The time length between successive significant signals is also measured, and the accumulated time length is reset to zero if the time length between successive significant signals reaches a second preselected time length.
    Type: Grant
    Filed: April 8, 1982
    Date of Patent: June 4, 1985
    Assignee: Elsec Electronic Security Systems Ltd.
    Inventors: Ilan Haran, Dan Haran