Ultrasound system and method for suppressing noise using per-channel weighting
US11650300B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 18, 2019 |
| Grant date | May 16, 2023 |
| Priority date | — |
| Expiry date | Jul 8, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S7/5208
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An ultrasound system according to the present disclosure may include a beamformer configured to perform per-channel weighting on the RF signals received at each channel in order to reduce noise clutter in the image. For this purpose, the beamformer may receive at one or more channels associated with an active aperture, sets of receive signals associated with respective transmit beams that at least partially overlap. The beamformer may alter the receive space, e.g., to align the sets of receive signals to a common location (e.g., between the transmit beams) and generate a coherence-based weighting value that may be indicative of blockage. The coherence-based weighting value may be applied on a per-channel basis to the receive signals. The beamformer may also communicate the coherence metric to the controller for altering the transmit space. In some such examples, the power output to one or more elements of the array may be adjusted based upon the per-channel weighting value or determined blockage of the aperture.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.