Patents Assigned to LEV Advanced Detection Systems Ltd.
  • Perimeter surveillance system with sectional inhibition
    Patent number: 4796012
    Abstract: An improved perimeter surveillance system employs multiple intrusion sensors distributed in the field and amplifiers associated therewith. Apparatus is provided for selectably inhibiting an alarm indication from a given sensor in response to electromagnetic interference detected thereat without necessarily inhibiting the operation of alarm indications from other sensors.
    Type: Grant
    Filed: March 27, 1987
    Date of Patent: January 3, 1989
    Assignee: LEV Advanced Detection Systems Ltd.
    Inventors: Mordechai Schechter, Moshe Barkay