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:
Sep. 29, 2020

Filed:

Jul. 26, 2017
Applicant:

Rolls-royce Corporation, Indianapolis, IN (US);

Inventor:

Kerry Wiegand, Brownsburg, IN (US);

Assignee:

Rolls-Royce Corporation, Indianapolis, IN (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01D 5/14 (2006.01); G01D 5/244 (2006.01); H03M 1/48 (2006.01);
U.S. Cl.
CPC ...
G01D 5/14 (2013.01); G01D 5/24466 (2013.01); G01D 5/24476 (2013.01); H03M 1/485 (2013.01);
Abstract

A position sensing system for a rotating object may include analog conditioning circuitry, analog to digital converter circuitry, and a controller. The analog conditioning circuitry may identify a half cycle of an analog input signal received from a sensor, which has a variable period and a variable magnitude. The analog to digital converter circuitry may process the input signal during the variable period. The controller may control the analog to digital converter circuitry to compare a magnitude of the identified half cycle of a first variable period of the input signal to a magnitude of the identified half cycle of a second variable period of the input signal. The controller may generate an output signal when a difference between the magnitude of the identified half cycle of the first variable period and the magnitude of the identified half cycle of the second variable period is greater than a predetermined threshold.


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