Ultrasonic echography device with reduced interference noise
US4951676A · kind A · utility
18Cited by
2References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 4, 1989 |
| Grant date | Aug 28, 1990 |
| Priority date | — |
| Expiry date | May 4, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T5/30
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An ultrasonic echography device, comprising at least one piezoelectric transducer, a stage for transmitting an ultrasonic beam, and a stage for receiving and processing echographic signals e returned to the transducer. The stage for receiving and processing comprises at least one grey-scale morphological filter which comprises elementary erosion filters and dilation filters for processing applied to the echographic signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.