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. 03, 2025
Filed:
Feb. 26, 2020
Huawei Technologies Co., Ltd., Shenzhen, CN;
Jiazhi Dai, Shanghai, CN;
Chuan Yang, Dongguan, CN;
Feng Gao, Shanghai, CN;
Huogen Kuang, Shanghai, CN;
Takao Ishii, Yokohama, JP;
HUAWEI TECHNOLOGIES CO., LTD., Shenzhen, CN;
Abstract
A photographing apparatus includes a shape memory alloy (SMA) motor, an image sensor, a lens, and a controller. The SMA motor includes an SMA wire. The SMA wire is configured to deform to drive the lens to move. The controller is configured to output a pulse signal. The pulse signal includes a drive signal and a detection signal. The drive signal is used to cause the SMA wire to deform. The detection signal is used to detect deformation of the SMA wire. N times a pulse signal cycle is equal to a time difference between the first time of sampling and the second time of sampling in correlated double sampling of the image sensor.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile