Ultrasound diagnosis system
US5415173A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 16, 1994 |
| Grant date | May 16, 1995 |
| Priority date | — |
| Expiry date | Feb 16, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S15/8927
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An ultrasound diagnosis system including a plurality of elements arrayed for transmitting ultrasonic wave to a testing object and for receiving ultrasonic wave reflected from the testing object, a device for giving a delay time distribution to respective transmitting and receiving signals of the elements to thereby form an ultrasonic beam having directivity in a predetermined direction, a device for displaying a sectional image of the testing object, and a sound velocity distribution control device for changing sound velocities in the testing object to be set up in respective elements in accordance with a focal point position of the ultrasonic beam and the respective positions of the elements in order to determine the delay time distribution, wherein the system further includes a sound velocity distribution control device for changing sound velocities to be set up in the respective elements on the basis of functions forming a system of orthogonal functions in which array number successively given to respective array positions of the elements in a transmitting and receiving aperture composed of a predetermined number of the elements is regarded as a variable, and on the basis of exp…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.