Digital video physical layer using a multi-level data code

Details Digital video physical layer using a multi-level data code Digital video physical layer using a multi-level data code

2008-06-27

2011-12-20

Tran, Khanh C (Department: 2611)

Pulse or digital communications

Multilevel

Transmission line

C375S293000, C375S286000, C375S287000, C375S257000, C375S258000, C327S052000, C341S143000

Reexamination Certificate

active

08081705

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, and613) 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.

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patent: 6225924 (2001-05-01), Epshtein
patent: 6975674 (2005-12-01), Phanse
patent: 7359437 (2008-04-01), Hwang et al.

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