Ultrasonic diagnosis apparatus
US5671744A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 9, 1995 |
| Grant date | Sep 30, 1997 |
| Priority date | — |
| Expiry date | Aug 9, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S15/8945
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A reception signal containing phase information and amplitude information is obtained by scanning a cross section of a subject with an ultrasonic wave. An ultrasonic image is formed on the basis of the reception signal and displayed. A noise component is filtered from reception signals at respective points in the cross section. The reception signals, which have not been non-linear processed, i.e., have not been subjected to an image forming process, are filtered. Therefore, the suppression effect of suppressing an image of a portion which moves at a relatively low speed and the emphasis effect of emphasizing an image a portion which moves at a relatively high speed can be improved as compared to the conventional art in which an ultrasonic image after non-linear process is filtered.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.