Ultrasound transducer head with integrated variable-gain amplifier devices
US5724312A · kind A · utility
10Cited by
11References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 17, 1996 |
| Grant date | Mar 3, 1998 |
| Priority date | — |
| Expiry date | Apr 17, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03G3/00
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An ultrasound transducer head that contains at least one transducer element, which receives ultrasound signals and converts them into electrical receive signals, and an amplifier device, which electrically amplifies the receive signals of the transducer element. The amplifier device contains at least one capacitive component, preferably a controllable capacitive diode. The gain of the amplifier device can be varied as a function of the capacitance of the capacitive component. A virtually loss-free gain is obtained over a large dynamic response range.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.