Digital video physical layer using a multi-level data code
US8081705B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 27, 2008 |
| Grant date | Dec 20, 2011 |
| Priority date | — |
| Expiry date | Aug 12, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2370/12
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Digital video data is transmitted from a video source (61) to a video sink (62) as a group of three multilevel symbols (611, 612, and 613) per pixel color with each associated symbol being sent at a rate of three times the pixel clock (601). When eleven levels are used per symbol (611) and undesirable symbol groups having excess DC residual or minimal energy are eliminated, and a built-in-test symbol group is added for pixel alignment; there results a one-to-one correspondence between the remaining symbol groups available and the two-hundred and sixty possible states that are used in the TMDS physical layer that is in widespread commercial use.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.