Apparatus and method for detecting faults in outdoor display
US6147617A · kind A · utility
28Cited by
1References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 3, 1999 |
| Grant date | Nov 14, 2000 |
| Priority date | — |
| Expiry date | May 3, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B45/58
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention is to provide an apparatus for detecting errors due to cutoff of a unit pixel and short between the unit pixel and the ground voltage level in a lighting-off state, and also a method for checking in a real time whether information data outputted from a remote host computer is normally represented on a display and detecting all the errors due to cutoff of a unit pixel, short between a unit pixel and the ground voltage level, and short between unit pixels.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.