Sensor readout circuit
US6972553B2 · kind B2 · utility
13Cited by
12References
31Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 14, 2002 |
| Grant date | Dec 6, 2005 |
| Priority date | — |
| Expiry date | Feb 14, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2291/0256
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A sensor readout circuit which provides a frequency signal output including a phase detector circuit responsive to an output signal from a sensor and an input signal to the sensor and configured to detect the phase difference between the input signal and the output signal, and a drive circuit responsive to the phase detector circuit and configured to maintain a fixed phase difference between the input signal and the output signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.