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. 11, 2024
Filed:
May. 23, 2023
Shanghai Tianma Micro-electronics Co., Ltd., Shanghai, CN;
Hiroshi Haga, Kanagawa, JP;
Shin Takeuchi, Kanagawa, JP;
Kenji Sera, Kanagawa, JP;
Kenichi Hayashi, Kanagawa, JP;
Feng Lu, Shanghai, CN;
Haochi Yu, Shanghai, CN;
QiJun Yao, Shanghai, CN;
SHANGHAI TIANMA MICRO-ELECTRONICS CO., LTD., Shanghai, CN;
Abstract
An ultrasonic sensor device includes a plurality of pixels each including an ultrasonic transducer, and a control circuit configured to control the plurality of pixels. Each of the plurality of pixels is configured to hold a signal received by the ultrasonic transducer therein and send the signal to the control circuit as a response signal. The control circuit is configured to acquire an excitation response signal, which is a response signal sent from a pixel after the ultrasonic transducer therein is excited, acquire a non-excitation response signal, which is a response signal sent from a pixel when the ultrasonic transducer therein is not excited, and correct the excitation response signal based on the non-excitation response signal.