Rambus Inc. patent hat trick

United States Patent 7,180,959
Bessios, et al. February 20, 2007

Technique for utilizing spare bandwidth resulting from the use of a code in a multi-level signaling system

Abstract
A technique for utilizing spare bandwidth resulting from the use of a code in a multi-level signaling system is disclosed. In one particular exemplary embodiment, the technique may be realized as a method for utilizing spare bandwidth resulting from the use of a code in a multi-level signaling system, wherein the code has a characteristic wherein a signal transition is periodically unused. Such a method may comprise modifying the code such that the periodically unused signal transition is used to represent additional information.

Inventors: Bessios; Anthony (Fremont, CA), Zerbe; Jared (Woodside, CA)
Assignee: Rambus Inc. (Los Altos, CA)
Appl. No.: 10/878,342
Filed: June 29, 2004

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United States Patent 7,180,958
Bessios, et al. February 20, 2007

Technique for utilizing spare bandwidth resulting from the use of a transition-limiting code in a multi-level signaling system

Abstract
A technique for utilizing spare bandwidth resulting from the use of a transition-limiting code in a multi-level signaling system is disclosed. In one particular exemplary embodiment, the technique may be realized as a method for utilizing spare bandwidth resulting from the use of a transition-limiting code in a multi-level signaling system, wherein the transition-limiting code has a characteristic such that at least one signal level is periodically unused. The method comprises utilizing the at least one periodically unused signal level in a codeword that has been encoded using the transition-limiting code so as to represent additional information in the multi-level signaling system.

Inventors: Bessios; Anthony (Fremont, CA), Stonecypher; William (San Jose, CA), Werner; Carl (Los Gatos, CA), Zerbe; Jared (Woodside, CA)
Assignee: Rambus Inc. (Los Altos, CA)
Appl. No.: 10/849,153
Filed: May 20, 2004

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United States Patent 7,180,957
Bessios , et al. February 20, 2007

Technique for utilizing spare bandwidth resulting from the use of a transition-limiting code in a multi-level signaling system

Abstract
A technique for utilizing spare bandwidth resulting from the use of a transition-limiting code in a multi-level signaling system is disclosed. In one particular exemplary embodiment, the technique may be realized as a method for utilizing spare bandwidth resulting from the use of a transition-limiting code in a multi-level signaling system, wherein the transition-limiting code has a characteristic wherein a signal level is periodically unused. Such a method may comprise modifying the transition-limiting code such that the periodically unused signal level is used to represent additional information.

Inventors: Bessios; Anthony (Fremont, CA), Stonecypher; William (San Jose, CA), Zerbe; Jared (Woodside, CA), Werner; Carl (Los Gatos, CA)
Assignee: Rambus Inc. (Los Altos, CA)
Appl. No.: 10/667,355
Filed: September 23, 2003

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