Transmit/receive system for imaging devices
US11726193B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 11, 2021 |
| Grant date | Aug 15, 2023 |
| Priority date | — |
| Expiry date | Jan 31, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S15/8906
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A filter circuit for an imaging device including a probe configured to propagate an ultrasonic wave through an object includes a diode bridge configured to receive, from a transducer of the probe, a composite signal that includes a test signal and a reflected signal. The reflected signal corresponds to reflected waves sensed by the transducer in response to the ultrasonic wave propagated through the object. The diode bridge is further configured to block the test signal from the composite signal and pass the reflected signal. The filter circuit further includes an output node configured to output the reflected signal and a first node and a second node that connect the diode bridge to a bias voltage. The bias voltage causes a bias current to flow from the first node to the second node through the diode bridge.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.