Ultrasound transmit and receive path calibration methods and systems
US7162912B2 · kind B2 · utility
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19References
13Claims
0Family size
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Key dates
| Filing date | Mar 29, 2004 |
| Grant date | Jan 16, 2007 |
| Priority date | — |
| Expiry date | Oct 9, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2291/015
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The clipping diodes used to limit voltage during medical diagnostic ultrasound imaging operation are used during calibration operation for measuring amplitude and phase differences. The amplitude and phase measurements using clipping diodes as the calibration node may operate at any frequency, including frequencies less than 20 megahertz as well as frequencies above 20 megahertz. By using the diodes already present, a smaller or more compact calibration system may be provided. More simplistic integration may also result.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.