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:
Jun. 06, 2023
Filed:
Dec. 31, 2020
Applicant:
Goodix Technology (Hk) Company Limited, Hong Kong, HK;
Inventor:
Temujin Gautama, Redhill, GB;
Assignee:
GOODIX TECHNOLOGY (HK) COMPANY LIMITED, Hong Kong, HK;
Primary Examiner:
Int. Cl.
CPC ...
H02P 25/034 (2016.01); H02P 6/182 (2016.01); G06F 3/01 (2006.01); G08B 6/00 (2006.01);
U.S. Cl.
CPC ...
H02P 25/034 (2016.02); H02P 6/182 (2013.01); G06F 3/016 (2013.01); G08B 6/00 (2013.01);
Abstract
An apparatus and a method for generating a voice coil actuator (VCA) signal is described. A drive signal is generated to drive the VCA and a resulting current signal from the VCA detected. The frequency of the drive signal is adapted in response to detecting an asymmetry in the current signal.