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US Patent 11762043 High resolution magnetic field sensors

Patent 11762043 was granted and assigned to Allegro Microsystems, Llc on September, 2023 by the United States Patent and Trademark Office.

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Patent attributes

Patent Applicant

Allegro Microsystems, Llc

Current Assignee

Allegro Microsystems, Llc

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

Patent Inventor Names

Zachary Richards

Date of Patent

September 19, 2023

Patent Application Number

17653240

Date Filed

March 2, 2022

Patent Citations

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US Patent 9007054 Angle sensor with misalignment detection and correction

US Patent 9170128 Motion sensor, method, and computer-readable storage medium providing a motion sensor with a vibration processor to set a state of a flag in response to selected ones of a plurality of test results being indicative of a passing conditions

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Patent abstract

Methods and apparatus for determining and transmitting speed and/or direction information for a rotating target by a magnetic field sensor. A reference channel signal is generated for a target from at least one magnetic field sensing element and a virtual channel signal in quadrature with the reference channel signal is generated. A tangent signal is generated. A slope of an arctangent of the tangent signal is determined, wherein the slope corresponds to rotational speed of the target. The speed and/or direction of the target can be transmitted by a sensor IC.

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