System and method for detecting display disconnection
US8411073B2 · kind B2 · utility
2Cited by
11References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 13, 2008 |
| Grant date | Apr 2, 2013 |
| Priority date | — |
| Expiry date | Jan 18, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02D30/50
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A video processing device comprises a display interface coupleable to a display device and a display controller configured to transmit a video signal via an output node of the display interface. The video signal comprises an active segment comprising video information and an inactive segment comprising synchronization information. The video processing device further comprises a display detector configured to determine whether the display device is coupled to the display interface based on a comparison of a first voltage at the output node during transmission of the inactive segment to a second voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.