Threshold temperature sensor comprising room temperature test means
US6997606B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 19, 2002 |
| Grant date | Feb 14, 2006 |
| Priority date | — |
| Expiry date | Jun 17, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01K15/00
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An integrated temperature sensor delivers threshold detection signals when temperature thresholds have been exceeded. The temperature sensor includes a circuit for detecting a first temperature threshold having a first detection threshold, and for detecting a second temperature threshold having a second detection threshold. The circuit also detects a third temperature threshold between the first and second temperature thresholds, and detects a fourth temperature threshold between the first and second temperature thresholds. The third temperature threshold has a third detection threshold linked with the first detection threshold so that a deviation of the first detection threshold causes a corresponding deviation of the third detection threshold. Similarly, the fourth temperature has a fourth detection threshold linked with the second detection threshold so that a deviation of the second detection threshold causes a corresponding deviation of the fourth detection threshold. The third and fourth temperature thresholds define a temperature window to test the temperature sensor for detecting a deviation of the first and second detection thresholds.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.