Synthesis of vertical blanking signal
US7668099B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 23, 2003 |
| Grant date | Feb 23, 2010 |
| Priority date | — |
| Expiry date | Dec 17, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N7/088
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method of controlling transmission of data from a computer to a video client via an interface device, comprising: reading a register on the interface device to obtain a value indicating temporal proximity to an occurrence of a vertical blanking interval occurs, the value increased incrementally until a vertical blanking interval occurs, and then being reset; deriving a time value, the time value indicating the occurrence of a vertical blanking interval; sending an interrupt to a processor on the computer at the occurrence of the vertical blanking interval; and invoking code in response to an occurrence of the video blanking interval.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.