Ultrasonic video apparatus
US6677985B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 4, 2000 |
| Grant date | Jan 13, 2004 |
| Priority date | — |
| Expiry date | Aug 4, 2020 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B8/00
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An ultrasonic imaging apparatus having a depth range setter 28 for setting a threshold value of detection level for a Doppler signal in an ultrasonic circuit unit 2, a unit for extracting a time at which the Doppler signal exceeds the set detection level and a signal level in excess of the set detection level, and a ROI depth data generator 29 for determining, for an adaptive phase controller 3, a ROI depth range for correction necessary to make echo signals of neighboring channels be in phase by using the extracted time and signal level, whereby the focal point can follow the ROI region in an object to be inspected by correcting echo signals from the region where the intensity of the Doppler signal reaches the detection level or its neighboring region so as to make them be in phase between adjacent transducers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.