Detection circuits, detection method and systems of measuring physical quantities
US7370531B2 · kind B2 · utility
7Cited by
8References
6Claims
0Family size
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Key dates
| Filing date | Jan 19, 2005 |
| Grant date | May 13, 2008 |
| Priority date | — |
| Expiry date | Jan 19, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01C19/5649
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A detection circuit 30 has a unit 30a for inputting a signal to be detected by synchronized wave detection, a unit 30b for inputting a standard signal for the signal to be detected and a unit 30c for inputting an offset signal applied on the signal to be detected. The offset signal is superimposed on the signal to be detected, which is then subjected to synchronized wave detection based on the standard signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.