Compensation of environmental drift by tracking switched capacitor impedance versus resistor impedance
US12132494B2 · kind B2 · utility
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Key dates
| Filing date | Sep 7, 2022 |
| Grant date | Oct 29, 2024 |
| Priority date | — |
| Expiry date | Apr 12, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03L7/06
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A method may include, for a signal path comprising a passive antialiasing filter sampled by a switched-capacitor front-end, monitoring a change of a first impedance of a resistor of the passive antialiasing filter responsive to an environmental condition relative to a second impedance of a switched capacitor of the switched-capacitor front end and compensating the signal path for a change in gain of the signal path resulting from the change of the first impedance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.