Implantable medical devices including low frequency and high frequency clocks and related methods
US11759623B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 27, 2020 |
| Grant date | Sep 19, 2023 |
| Priority date | — |
| Expiry date | Jun 8, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG16H40/63
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Techniques for calibrating a low frequency (LF) clock of an IMD are disclosed, wherein the IMD also includes a high frequency (HF) clock. This includes determining an average, or a surrogate thereof, of how many HF clock cycles of a HF clock signal (produced by the HF clock) occur per LF clock cycle of a predetermined number N of LF clock cycles of the LF clock signal (produced by the LF clock), wherein N is an integer that is at least 2. This also includes comparing the average or a surrogate thereof to a corresponding target value that the average or the surrogate thereof would be equal to if the frequency of the LF clock signal equaled a target frequency for the LF clock, wherein the corresponding target value need not be an integer. The LF clock is calibrated by adjusting the frequency thereof based on results of the comparing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.