Use of multi-level modulation signaling for short reach data communications

Patent metadata

Field	Value
Publication number	US-8964818-B2
Application number	US-201313739782-A
Country	US
Kind code	B2
Filing date	Jan 11, 2013
Priority date	Nov 30, 2012
Publication date	Feb 24, 2015
Grant date	Feb 24, 2015

Abstract

A short reach communication system includes a plurality of communication SERDES that communicate data over a short reach channel medium such as a backplane connection (e.g., PCB trace) between, for example, chips located on a common PCB. A multi-level modulated data signal is generated to transmit/receive data over the short reach channel medium. Multi-level modulated data signals, such as four-level PAM, reduce the data signal rate therefore reducing insertion loss, power, complexity of the circuits and required chip real estate.

First claim

The invention claimed is:

1. A high speed communication system comprising:
a short reach communication channel;
a high speed SERDES including a transceiver configured to be operative with the short reach communication channel;
the high speed SERDES transmitting or receiving a multi-level(n) pulse amplitude modulated (PAM) data signal over the short reach communication channel through a communications channel medium;
a converter to convert from the received multi-level(n) PAM…

Assignees

• Longo Lorenzo
• Telang Vivek
• Broadcom Corp

Inventors

• Longo Lorenzo
• Telang Vivek

Classifications

• H04L25/03885

  Electricity · mapped topic

• H04L25/03057

  Electricity · mapped topic

• H04L27/02

  Electricity · mapped topic

• H04L25/4917 Primary

  Electricity · mapped topic