The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 08, 2014
Filed:
Oct. 18, 2010
David Blake Jackson, Excelsior, MN (US);
Greg Fuchs, River Falls, WI (US);
Frederick R. Faxvog, Long Lake, MN (US);
Terrence R. Noe, Sebastopol, CA (US);
David Blake Jackson, Excelsior, MN (US);
Greg Fuchs, River Falls, WI (US);
Frederick R. Faxvog, Long Lake, MN (US);
Terrence R. Noe, Sebastopol, CA (US);
Emprimus, LLC, St. Louis Park, MN (US);
Abstract
A method and apparatus configured to detect electromagnetic field events are disclosed. One apparatus includes an antenna and a circuit electrically connected to the antenna. The circuit includes electronics communicatively connected to the antenna via a direct current isolation circuit and an equalizer compensating for the differentiating frequency response of the antenna. The circuit also includes a logarithmic amplifier electrically connected to the equalizer and configured to generate a range of signals based on signals received at the antenna. The circuit further includes a peak detector receiving signals from the equalizer and configured to capture a peak value of the signals. The electromagnetic field event is detected at least in part based on the peak signal value.