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. 14, 2021
Filed:
Feb. 14, 2020
Applicant:
Huawei Technologies Co., Ltd., Shenzhen, CN;
Inventors:
Assignee:
Huawei Technologies Co., Ltd., Shenzhen, CN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 13/322 (2018.01); G02B 3/14 (2006.01); H04N 13/332 (2018.01);
U.S. Cl.
CPC ...
H04N 13/322 (2018.05); G02B 3/14 (2013.01); H04N 13/332 (2018.05);
Abstract
A multifocal display device has a focus tunable lens (FTL) and a controller configured to shift a focus of the FTL from a first focal plane to a second focal plane by applying a compensated control signal to the FTL. The controller is configured to generate a current compensated control signal value, which is a value of the compensated control signal for a current point in time, based on one or more previous compensated control signal values, which are values of the compensated control signal at one or more previous points in time.