Transmit beamformer with frequency dependent focus
US5608690A · kind A · utility
124Cited by
22References
41Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 2, 1995 |
| Grant date | Mar 4, 1997 |
| Priority date | — |
| Expiry date | Mar 2, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S7/5202
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A transmit beamformer includes multiple transducers, each responsive to a respective transmit waveform to produce a respective transducer waveform. A transmit waveform generator generates the transmit waveforms, and the transmit waveforms each include multiple frequency components. Progressively higher frequency components of the transmit waveforms are timed to cause corresponding progressively higher frequency components of the transducer waveforms to focus along a line at progressively shorter ranges. In this way, a frequency dependent line focus is achieved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.