Trouble sensing device
US7403870B2 · kind B2 · utility
0Cited by
1References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 4, 2005 |
| Grant date | Jul 22, 2008 |
| Priority date | — |
| Expiry date | Jan 12, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/50
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A trouble sensing device has a first unit and a second unit. The first unit determines a total sum of driving current of two or more of a plurality of driving mechanisms that are turned on. The second unit judges whether trouble has arisen based on the total sum of the driving current.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.