Patents Assigned to Bluegrass Electronics Inc.
  • Sound discriminator tester
    Patent number: 4552022
    Abstract: A device for selecting the proper sensitivity and acceptable background noise level for sound discrimination switches used for detection of selected sounds where the detection device includes peak signal detectors to receive audio voltage generated by the selected sounds and activate an alarm.
    Type: Grant
    Filed: May 10, 1982
    Date of Patent: November 12, 1985
    Assignee: Bluegrass Electronics Inc.
    Inventor: Elden E. DuRand, III