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:
Jan. 04, 2022
Filed:
Aug. 10, 2020
Rohm Co., Ltd., Kyoto, JP;
Sony Semiconductor Solutions Corporation, Atsugi, JP;
Akihito Saito, Kyoto, JP;
Tatsuya Ninomiya, Kyoto, JP;
Nobuo Kohmura, Kyoto, JP;
Kento Nishizawa, Kyoto, JP;
Tatsuro Shimizu, Kyoto, JP;
Takahiro Akahane, Atsugi, JP;
Go Asayama, Atsugi, JP;
Yuki Urano, Atsugi, JP;
ROHM CO., LTD., Kyoto, JP;
SONY SEMICONDUCTOR SOLUTIONS CORPORATION, Kanagawa, JP;
Abstract
An image sensor includes a pixel array including multiple pixels. A lens is provided on an optical path of incident light to the image sensor. An actuator includes a coil, and supports positioning of the lens according to a driving signal applied to the coil. A position detection coil is arranged such that it magnetically couples with the coil of the actuator. An actuator driver supplies a pulse-shaped driving signal to the coil of the actuator driver. A position detection circuit generates a position detection signal that indicates the position of the lens based on an induced electromotive force that occurs in the position detection coil according to the driving signal, and feeds back the position detection signal to the actuator driver.