Low-noise ultrasound method and beamformer system for doppler processing
US7513873B2 · kind B2 · utility
20Cited by
9References
17Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 4, 2005 |
| Grant date | Apr 7, 2009 |
| Priority date | — |
| Expiry date | Jun 8, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S15/8979
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An ultrasonic low-noise analog beamformer for Doppler acquisition achieves high sensitivity by translating the frequency of the ultrasound echoes to an intermediate frequency, which is well above of the 1/f corner. This is accomplished by beamforming the downconverted RF signals instead of using their baseband representation. The baseband conversion, succeeding the beamformation, also incorporates the steps of clutter filtering and anti-aliasing. The invention is particularly suitable for low-voltage process technologies that support broadband applications.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.