Coupled bi-stable circuit for ultra-sensitive electric field sensing utilizing differential transistor pairs
US8212569B1 · kind B1 · utility
7Cited by
11References
20Claims
0Family size
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Key dates
| Filing date | Mar 29, 2010 |
| Grant date | Jul 3, 2012 |
| Priority date | — |
| Expiry date | Mar 25, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R29/12
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An ambient electric field detector comprising: a collection mechanism disposed to generate a current signal in response to the ambient electric field; an input current mirror operatively coupled to the collection mechanism and disposed to amplify and duplicate the current signal to generate a duplicate signal; and an odd number (i) of at least three nonlinear, over-damped, bi-stable elements coupled uni-directionally in a ring such that the ring of elements oscillates, wherein at least one of the elements has a different initial state than the other elements and each element is disposed to receive the duplicate signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.