Probe and ultrasound diagnostic device using the same
US11844653B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 16, 2022 |
| Grant date | Dec 19, 2023 |
| Priority date | — |
| Expiry date | Aug 23, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S15/8993
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
To provide a probe including a TGC circuit therein. The probe includes a plurality of receive circuits. Each receive circuit includes: an ultrasound transducer; a transmit/receive switch; a variable attenuator; a first capacitor; and an amplifier. The ultrasound transducer converts the receive signal into a ground level electric signal and outputs the ground level electric signal as a first output signal. The transmit/receive switch is connected to a first signal line, and switches depending on whether to output the first output signal output from the ultrasound transducer to the first signal line. The variable attenuator includes a control terminal and two terminals, and changes a resistance value between the two terminals other than the control terminal based on a control signal input to the control terminal. The amplifier has an input terminal connected to the first capacitor and includes at least an amplifier circuit configured to amplify an electric signal of the first signal line and output the amplified electric signal to a second signal line. In the variable attenuator, one of the two terminals other than the control terminal is connected to the first signal line, and the o…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.