Invention Grant
- Patent Title: Ultrasonic sensor device and method of controlling the same
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Application No.: US18322343Application Date: 2023-05-23
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Publication No.: US12008834B2Publication Date: 2024-06-11
- Inventor: Hiroshi Haga , Shin Takeuchi , Kenji Sera , Kenichi Hayashi , Feng Lu , Haochi Yu , QiJun Yao
- Applicant: Shanghai Tianma Micro-Electronics Co., Ltd.
- Applicant Address: CN Shanghai
- Assignee: SHANGHAI TIANMA MICRO-ELECTRONICS CO., LTD.
- Current Assignee: SHANGHAI TIANMA MICRO-ELECTRONICS CO., LTD.
- Current Assignee Address: CN Shanghai
- Agency: NIXON & VANDERHYE
- Priority: JP 22086116 2022.05.26
- Main IPC: G06V40/13
- IPC: G06V40/13 ; G06V40/12

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.
Public/Granted literature
- US20230386246A1 ULTRASONIC SENSOR DEVICE AND METHOD OF CONTROLLING THE SAME Public/Granted day:2023-11-30
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