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:
Dec. 15, 2020
Filed:
Apr. 09, 2019
Applicant:
Ambiq Micro, Inc., Austin, TX (US);
Inventors:
Yousof Mortazavi, Austin, TX (US);
Scott McLean Hanson, Austin, TX (US);
Assignee:
AMBIQ MICRO, INC., Austin, TX (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H02P 25/032 (2016.01); H02P 25/06 (2016.01); G01P 15/12 (2006.01); G01P 21/00 (2006.01); H04L 29/08 (2006.01); B06B 1/02 (2006.01); H02K 41/02 (2006.01); G01C 22/00 (2006.01); G06F 3/01 (2006.01);
U.S. Cl.
CPC ...
H02P 25/032 (2016.02); B06B 1/0246 (2013.01); G01C 22/006 (2013.01); G01P 15/12 (2013.01); G01P 21/00 (2013.01); G06F 3/016 (2013.01); H02K 41/02 (2013.01); H02P 25/06 (2013.01); H04L 67/22 (2013.01);
Abstract
An accelerometer and a linear resonant actuator (LRA) are mechanically coupled, such as by being mounted to the same circuit board. The output of the accelerometer is evaluated in order to select a drive frequency for the LRA. For example, the drive frequency may be varied while measuring the magnitude of acceleration induced by the LRA. The output of the accelerometer may further be used to perform a fitness tracking function, such as counting steps or detecting an activity level.