System, circuit and method for tuning a resonant circuit
US7190153B2 · kind B2 · utility
5Cited by
7References
48Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 7, 2005 |
| Grant date | Mar 13, 2007 |
| Priority date | — |
| Expiry date | Aug 10, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03J5/02
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A circuit may be tuned to resonate at a driving frequency. The circuit includes a source that provides an output at a drive frequency and a resonant circuit having an input coupled to the source, an output, and first and second selectable resonant frequencies. The first resonant frequency is below the drive frequency and the second resonant frequency is above the drive frequency. A control coupled to the resonant circuit output selects the first and second resonant frequencies to cause the resonant circuit to provide an output at an apparent resonant frequency equal to the drive frequency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.