Ultrasonic echographic imaging device utilizing an improved adaptive filter
US5050226A · kind A · utility
27Cited by
2References
2Claims
0Family size
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Key dates
| Filing date | Mar 20, 1990 |
| Grant date | Sep 17, 1991 |
| Priority date | — |
| Expiry date | Mar 20, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S7/52077
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An ultrasonic echographic imaging device for two dimensions (x, y), includes an adaptive filter for reducing the interference noise in the images obtained. A first circuit differentiates the signal (E(x, y)) applied to the adaptive filter and a second circuit forms the weighted sum of the signal (S(x, y)) leaving the adaptive filter (200) and the signal (dE(x, y)/dy) output of the differentiating circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.