Proximity detection system and method
US7884733B2 · kind B2 · utility
16Cited by
1References
23Claims
0Family size
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Key dates
| Filing date | May 20, 2008 |
| Grant date | Feb 8, 2011 |
| Priority date | — |
| Expiry date | Apr 9, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K2217/94026
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Proximity detection is accomplished by determining with a moving average calculation a moving average level of input data; setting a threshold level in response to the average level and a sensitivity factor; producing a proximity detection output when the input data meets the threshold level; and changing the weighting used by the average level calculation in response to a proximity detection output.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.