Rambus Inc., patented

United States Patent 7,113,550

Stonecypher, et al. September 26, 2006

Technique for improving the quality of digital signals in a multi-level signaling system

Abstract
A technique for improving the quality of digital signals in a multi-level signaling system is disclosed. In one particular exemplary embodiment, the technique may be realized as a method for improving the quality of transmitted digital signals in a multi-level signaling system wherein digital signals representing more than one bit of information may be transmitted at more than two signal levels on a single transmission medium. The method comprises encoding digital values represented by sets of N bits to provide corresponding sets of P symbols, wherein each set of P symbols is selected to eliminate full-swing transitions between successive digital signal transmissions. The method also comprises transmitting the sets of P symbols.

Inventors: Stonecypher; William (San Jose, CA), Bessios; Anthony (Fremont, CA), Agarwal; Amita (Baltimore, MD)

Assignee: Rambus Inc. (Los Altos, CA)

Appl. No.: 10/314,985

Filed: December 10, 2002

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