Tunable ultrasound transmitter
US9162255B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 13, 2010 |
| Grant date | Oct 20, 2015 |
| Priority date | — |
| Expiry date | May 5, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S15/8963
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The use of power-efficient transmitters to establish acoustic wave energy having low undesirable harmonics is achieved by adjusting the transmitter output waveform to minimize the undesirable harmonics. In one embodiment, both the timing and slope of the waveform edges are adjusted to produce the desired output waveform having little or no second harmonics. In the embodiment, output waveform timing adjustments on the order of fractions of the system clock interval are provided. This then allows for very fine control of a coarsely produced waveform. In one embodiment, the user can select the fine tuning to match the transmitter output signal to a particular load transducer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.