Device and method for evaluating connectivity between a video driver and a display
US8456529B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 11, 2008 |
| Grant date | Jun 4, 2013 |
| Priority date | — |
| Expiry date | Sep 21, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2370/04
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A device for evaluating connectivity between a video driver and a display, the device comprises a first video driver, a first output connector, a first terminating resistance; wherein the device is characterized by comprising a first comparison unit; wherein the first video driver has an output port that is coupled to the first output connector, to the first terminating resistance and to the first comparison unit; wherein the first output connector is configured to be coupled via a first cable to a first input of the display; wherein the first comparison unit is adapted to perform comparisons between a voltage level on the first terminating resistance to multiple thresholds and to determine whether a display first input impedance is substantially equal to the first terminating resistance, whether the display first input impedance is substantially lower then the first terminating resistance, or whether the first video driver is disconnected from the display; wherein the comparisons are executed during a pixel information idle period.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.