Ultrasound diagnostic apparatus
US4511984A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 25, 1982 |
| Grant date | Apr 16, 1985 |
| Priority date | — |
| Expiry date | Aug 25, 2002 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S7/52036
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An ultrasound diagnostic apparatus for use in the imaging or characterization of biological tissue, including an ultrasonic probe, a gate circuit, a spectrum analysis device, a computation device and a display. The ultrasonic probe emits ultrasonic beams and receives the reflected echo signals from tissue interfaces. The reflected signals are sampled by the gate circuit and are Fourier-analyzed by the spectrum analysis device, and then the computation device derives frequency-dependant ultrasonic attenuation properties therefrom. The results of the computation device are displayed by the display to indicate the state of the tissue.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.