Patent · US Active

Receiver termination circuit for a high speed direct current (DC) serial link

US7995660B2 · kind B2 · utility

3Cited by

5References

19Claims

0Family size

Assignee

International Business Machines Corporation · US

Inventors

Carrie E. Cox · Apex, US
Hayden C. Cranford, Jr. · Cary, US

Key dates

Filing date	Oct 31, 2007
Grant date	Aug 9, 2011
Priority date	—
Expiry date	Jun 8, 2030

Classification

Technology area (CPC H)Electricity
CPC primaryH04L25/0276
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

A method for matching receiver and transmitter common-mode voltages for a high-speed direct current (DC) serial connection between the receiver and the transmitter includes measuring, at the receiver, a common-mode voltage of the transmitter. The common-mode voltage of the transmitter is an average of a voltage signal transmitted by the transmitter and received by the receiver. The method further includes comparing the common-mode voltage of the transmitter with a common-mode voltage of the receiver. The method further includes maintaining the common-mode voltage of the receiver at a first level at which the common-mode voltage of the receiver substantially matches the common-mode voltage of the transmitter.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.