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.

Date of Patent:
Oct. 29, 2019

Filed:

Oct. 14, 2014
Applicant:

Tektronix, Inc., Beaverton, OR (US);

Inventors:

Robert E. Tracy, Beaverton, OR (US);

Kathryn A. Engholm, Portland, OR (US);

Alfred K. Hillman, Jr., Banks, OR (US);

Assignee:

Tektronix, Inc., Beaverton, OR (US);

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R 23/16 (2006.01); G01R 13/02 (2006.01); G01V 3/00 (2006.01);
U.S. Cl.
CPC ...
G01R 13/0254 (2013.01); G01R 13/0263 (2013.01); G01R 23/16 (2013.01); G01V 3/00 (2013.01);
Abstract

A method is disclosed for triggering upon signal events occurring in frequency domain signals. The method includes repeatedly sampling a time-varying signal and generating a plurality of digital frequency domain spectrums based on the samples of the time-varying signal. A frequency domain bitmap for the time-varying signal is repeatedly updated via application of the digital frequency domain spectrums. The method further includes selecting a portion of the frequency domain bitmap, determining a signal occupancy in the selected portion, and triggering a capture of the time-varying signal based on and in response to the occupancy determination for the selected portion of the bitmap.


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