Layer switching for an ultrasound transducer array
US8946972B2 · kind B2 · utility
1Cited by
12References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 16, 2006 |
| Grant date | Feb 3, 2015 |
| Priority date | — |
| Expiry date | Dec 22, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S15/8906
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A multi-layer transducer operates with only one system channel per element. Passive switching connects the layers differently for transmit than for receive operation, such as connecting two layers in parallel for transmit and in series for receive. Any passive switching may be used, such as current and voltage limiting circuits. Tuning may be passively switched. Different tuning circuits are passively switched as a function of voltage level between transmit and receive operations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.