High definition multi-media interface

Details High definition multi-media interface High definition multi-media interface

2006-03-28

2010-06-29

Payne, David C (Department: 2611)

Pulse or digital communications

Receivers

Interference or noise reduction

C375S219000, C375S229000, C375S344000, C375S345000

Reexamination Certificate

active

07746969

ABSTRACT:
A receiver for a multi-channel system such as a HDMI system is presented. In accordance with the present invention, the receiver receives one of the plurality of channels and includes an analog portion, a digital-to-analog converter, and a digital control block that provides digital control signals to the analog portion. Equalization can be accomplished partially or wholly in the analog domain and digitally controlled by a digital control loop. A digital equalizer can also be included. A decision feedback equalizer can be implemented that sums an analog output signal into the analog data stream. Timing recovery can be accomplished by digital control of a phase interpolator or delay locked loop that receives a plurality of phases from a timing circuit coupled to receive a clock signal.

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