Selectable-tap equalizer

Patent metadata

Field	Value
Publication number	US-9106397-B2
Application number	US-201514616629-A
Country	US
Kind code	B2
Filing date	Feb 6, 2015
Priority date	Jul 12, 2002
Publication date	Aug 11, 2015
Grant date	Aug 11, 2015

Abstract

A signaling circuit having a selectable-tap equalizer. The signaling circuit includes a buffer, a select circuit and an equalizing circuit. The buffer is used to store a plurality of data values that correspond to data signals transmitted on a signaling path during a first time interval. The select circuit is coupled to the buffer to select a subset of data values from the plurality of data values according to a select value. The equalizing circuit is coupled to receive the subset of data values from the select circuit and is adapted to adjust, according to the subset of data values, a signal level that corresponds to a data signal transmitted on the signaling path during a second time interval.

First claim

What is claimed is:

1. An integrated circuit receiver to receive an input signal from a conductive signal path, comprising:
a sampling circuit to sample the input signal and generate digital samples according to a first timing signal;
an equalization circuit to equalize the input signal, in dependence on at least one preceding digital sample, according to a second timing signal; and
circuitry to generate the second timing signal in a manner that is phase-offset relative to edg…

Assignees

• Rambus Inc

Inventors

• Zerbe Jared L
• Stojanovic Vladimir M
• Chen Fred F

Classifications

• H04L25/03038 Primary

  Electricity · mapped topic

• H04L25/03343

  Electricity · mapped topic

• H04L7/0087 Primary

  Electricity · mapped topic

• H04L25/03885

  Electricity · mapped topic

• H04L25/03019 Primary

  Electricity · mapped topic