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:
Mar. 24, 2015
Filed:
Mar. 14, 2013
Qualcomm Incorporated, San Diego, CA (US);
Hau Ling Hung, San Diego, CA (US);
Haibo Zhong, San Diego, CA (US);
Jeyaprakash Soundrapandian, San Diego, CA (US);
Rajakumar Govindaram, San Diego, CA (US);
Sreesudhan Ramakrish Ramkumar, San Diego, CA (US);
Ruben M. Velarde, Chula Vista, CA (US);
QUALCOMM Incorporated, San Diego, CA (US);
Abstract
Described herein are methods, apparatus, and computer readable medium to autofocus a lens of an imaging device. Parameters are received indicating a lens position. Lens actuator characteristics are determined. Lens damping parameters may be determined based, at least in part, on the input parameters and the lens actuator characteristics. In some aspects, lens damping parameters include a lens movement step size and a time delay between each step. In some aspects, the lens damping parameters include damping parameters for a plurality of regions of lens movement. Lens movement parameters are determined based, at least in part, on the input parameters and the lens damping parameters. The lens is then autofocused by moving it according to the lens movement parameters.