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:
Apr. 20, 2021
Filed:
May. 16, 2019
Applicant:
Sony Corporation, Tokyo, JP;
Inventor:
Tomoya Takei, Tokyo, JP;
Assignee:
SONY CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 5/232 (2006.01); H02N 2/06 (2006.01); H02P 25/06 (2016.01); G03B 3/10 (2021.01); G03B 5/00 (2021.01); H02N 2/02 (2006.01);
U.S. Cl.
CPC ...
H02N 2/062 (2013.01); G03B 3/10 (2013.01); G03B 5/00 (2013.01); H02P 25/06 (2013.01); H04N 5/23212 (2013.01); H04N 5/232122 (2018.08); H04N 5/232123 (2018.08); G03B 2205/0046 (2013.01); G03B 2205/0061 (2013.01); H02N 2/025 (2013.01);
Abstract
There is provided a drive controller including a determination part that compares a target stop position of a movable body, which is driven by a piezoelectric actuator driven by a piezoelectric element expanded and contracted in response to an applied voltage, with a real position of the movable body acquired on the basis of a position sensor, and determines whether or not the target stop position matches with the real position, and a drive control part that turns off energization of the piezoelectric actuator when the target stop position matches with the real position while the movable body is being driven by the piezoelectric actuator.