Miniature micromachined ultrasonic rangefinder
US10324181B2 · kind B2 · utility
1Cited by
2References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 25, 2017 |
| Grant date | Jun 18, 2019 |
| Priority date | — |
| Expiry date | Apr 10, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S2015/465
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A miniature rangefinder includes a housing, a micromachined ultrasonic transducer, and signal processing circuitry. The housing includes a substrate and a lid. The housing has one or more apertures and the micromachined ultrasonic transducer is mounted over an aperture. The micromachined ultrasonic transducer may function as both a transmitter and a receiver. An integrated circuit is configured to drive the transducer to transmit an acoustic signal, detect a return signal, and determine a time of flight between emitting the acoustic signal and detecting the return signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.