Device for the examination of objects by means of ultrasound echography
US4576046A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 11, 1984 |
| Grant date | Mar 18, 1986 |
| Priority date | — |
| Expiry date | Dec 11, 2004 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S15/8954
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A device for scanning objects by means of ultrasound echography, comprising at least one ultrasound transducer (10) which is connected to a transmitter stage (20) and to a receiver stage (30) which comprises an amplifier (40), a correction circuit (50) for the correction of the gain as a function of time, and a processing circuit (60) for the processing of the results of the echographic examination. The receiver and processing stage also comprise a circuit (70) which is connected to the output of the assembly formed by the amplifier and the gain correction circuit and which comprises means for determining the instantaneous frequency and the instantaneous energy of the echographic signal, means for weighting the instantaneous frequency with the instantaneous energy, and a diffraction correction circuit (80).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.