Method and apparatus for transducer excitation in medical ultrasound imaging
US8147409B2 · kind B2 · utility
45Cited by
13References
20Claims
0Family size
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Key dates
| Filing date | Mar 21, 2008 |
| Grant date | Apr 3, 2012 |
| Priority date | — |
| Expiry date | Mar 28, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10K11/346
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method of transducer excitation in medical ultrasound imaging. Based on a stepped approximation of Gaussian modulated cosines, the transmit waveform provides bandlimited spectrum and low level of second order harmonics while retaining the duration of the transmitting within two carrier cycles. The waveform is constructed as a linear composition of four unipolar, rectangle pulses of unity amplitude. Furthermore, the described embodiment supports digitally controlled transmit apodization and focusing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.