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:
Oct. 21, 2014
Filed:
Jan. 27, 2011
Patrick A. Smith, Beaverton, OR (US);
Daniel G. Knierim, Beaverton, OR (US);
John C. Calvin, Portland, OR (US);
Shane A. Hazzard, North Plains, OR (US);
Patrick A. Smith, Beaverton, OR (US);
Daniel G. Knierim, Beaverton, OR (US);
John C. Calvin, Portland, OR (US);
Shane A. Hazzard, North Plains, OR (US);
Tektronix, Inc., Beaverton, OR (US);
Abstract
A dF/dT trigger system and method includes instantaneously triggering on a frequency deviation of a data signal, which can be associated with an SSC signal. After receiving a signal at an input terminal of a test and measurement instrument, the signal is low-pass filtered and transmitted to trigger circuitry. When a frequency deviation rate in the filtered signal exceeds or crosses one or more thresholds, a trigger event is produced. Also disclosed is a test and measurement instrument including an input terminal to receive the signal, input circuitry to receive and process the signal, and dF/dT trigger circuitry configured to receive the signal and produce a trigger event when a frequency deviation in the signal exceeds or crosses one or more thresholds.