Beamformer for phase aberration correction
US5566675A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 30, 1995 |
| Grant date | Oct 22, 1996 |
| Priority date | — |
| Expiry date | Jun 30, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S7/52049
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An ultrasonic imaging system is provided that effectively corrects for inhomogeneities in the imaged media. The ultrasonic imaging system comprises a transducer array having a plurality of transducer elements each being separately operable to provide an ultrasonic pulse in response to a driving signal and to provide a corresponding echo signal in response to a received echo based on the ultrasonic pulse. A transmitter is coupled to the transducer array and provides the driving signal to each respective one of the transducer elements. The driving signals define a steered beam of the transducer array. A receiver is coupled to the transducer array and receives the echo signal from each respective one of the transducer elements. The receiver includes a beamformer section that produces a single matched and summed signal from the echo signals of the plurality of transducer elements. The beamformer section comprises a plurality of processing modules coupled in a cascading arrangement with separate processing stages.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.