Ultrasonic transmitter having adjustable output
US8848486B1 · kind B1 · utility
7Cited by
1References
19Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 13, 2011 |
| Grant date | Sep 30, 2014 |
| Priority date | — |
| Expiry date | Jul 30, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S15/04
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An ultrasonic transmitter of an ultrasonic occupancy sensing device has adjustable ultrasonic signal output amplitude to prevent overload of an ultrasonic sensor associated with the ultrasonic occupancy sensing device. A circuit for controlling the operating voltage to a power driver of the ultrasonic transmitter allows field adjustment of the output thereof so that an optimal level (amplitude) for the transmitted ultrasonic signal may be found in an area of actual use (e.g., field adjustable).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.