Ultrasound probe and ultrasound imaging apparatus using the same
US10613206B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 26, 2014 |
| Grant date | Apr 7, 2020 |
| Priority date | — |
| Expiry date | Nov 4, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10K11/346
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A compact delay circuit that can dynamically change delay time is configured. A probe includes an analog memory unit that accumulates electric charges corresponding to a reflected wave of an ultrasonic wave produced by a difference between the acoustic impedances on a plurality of capacitors 303 and in turn outputs the electric charges accumulated on the capacitors 303 to an analog memory unit 205. In accumulating electric charges, when a control signal Ctls_l that increases delay time of the reflected wave is inputted, the analog memory unit 205 accumulates the same electric charges on two or more of the capacitors 303 for a preset period, or in outputting electric charges, when a control signal Ctlo_l is inputted, the analog memory unit 205 outputs the electric charges accumulated on one of the capacitors 303 for a preset period.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.