Self-powered event detection device
US8422293B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 12, 2010 |
| Grant date | Apr 16, 2013 |
| Priority date | — |
| Expiry date | Apr 1, 2031 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE05B2047/0064
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The self-powered detection device comprises a non-volatile memory cell and a sensor activated by a physical or chemical action or phenomenon, this sensor forming an energy harvester transforming energy from the physical or chemical action orphenomenon into an electrical stimulus pulse, the memory cell arranged for storing, by using electrical power of the electrical stimulus pulse, at least a bit of information relative to detection by the sensor of at least a first physical or chemical action or phenomenon. The non-volatile memory cell comprises a FET transistor having a control gate, a first diffusion defining a first input and a second diffusion defining a second input. This FET transistor is set to its written logical state from its initial logical state when, in a detection mode, it receives on a set terminal a voltage stimulus signal resulting from the first physical or chemical action or phenomenon.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.