Radiation hardened timer
US6545551B1 · kind B1 · utility
0Cited by
3References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 4, 2001 |
| Grant date | Apr 8, 2003 |
| Priority date | — |
| Expiry date | Sep 4, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG04G3/00
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A radiation hardened timer that keeps accurate time before, during and after passage through a radiation-containing environment, the radiation hardened timer having a first oscillator that is stable in a radiation-free environment, a second oscillator that is stable in a radiation-containing environment, and digital circuitry that interfaces the two oscillators.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.