Ultrasonic phased array imaging system with high speed adaptive processing using selected elements
US5331964A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 14, 1993 |
| Grant date | Jul 26, 1994 |
| Priority date | — |
| Expiry date | May 14, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S15/8927
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Disclosed is an ultrasonic phased array imaging system which includes a normal mode and an adaptive mode of operation. The adaptive mode adjusts the delay associated with each element in the transducer such that the average image brightness of the region of interest is maximized. Also disclosed is a method of correcting for phase aberration using selected elements of an ultrasonic array specific to each element of the array to correct each element of the array. It is further disclosed that the use of corrected elements to correct subsequent elements in the array results in more accurate phase aberration correction. In a preferred embodiment, the determination of the maximum average image brightness is performed more accurately through the use of selectable transducer array elements and previously corrected data during adaptive processing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.