Ultrasonic sensor device and method of controlling the same
US12008834B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 23, 2023 |
| Grant date | Jun 11, 2024 |
| Priority date | — |
| Expiry date | May 23, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V40/1365
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.