Patents by Inventor James Everett McTaggart

James Everett McTaggart 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).

  • Direct reading sinad meter
    Patent number: 4068176
    Abstract: The disclosed circuitry accepts from a radio receiver under test audio signals consisting of the signal plus noise and distortion (S + N + D), levels, and subtracts from it a separately generated signal (- S) corresponding in frequency and amplitude to the audio signal without noise and distortion. The resulting absolute value of noise plus distortion (N + D) is applied to a meter which may be calibrated to indicate the SINAD ratio.
    Type: Grant
    Filed: August 17, 1976
    Date of Patent: January 10, 1978
    Assignee: The Singer Company
    Inventor: James Everett McTaggart