Patents Assigned to K Electronics, Inc.
  • Tornado warning system
    Patent number: 4812825
    Abstract: A tornado warning system uses a superhetrodyne receiver to detect electromagnetic energy produced by a tornado. The automatic gain control signal of the receiver is used to generate an intermediate signal having a time duration corresponding to the time when the automatic gain control is at or above a predetermined level. The intermediate signal is of constant amplitude and is integrated. Upon the integration reaching a predetermined level, an alarm initiate signal is produced which turns on an alarm drive and, in turn, sounds an alarm.
    Type: Grant
    Filed: February 10, 1987
    Date of Patent: March 14, 1989
    Assignee: K Electronics, Inc.
    Inventors: Richard E. Kennedy, Earl R. Fredrich