Patent Number: 6,307,151

Title: Technique for reducing low frequency interference noise

Abstract: A technique for reducing low frequency baseband interference noise is disclosed. The low frequency baseband interference noise typically takes the form of low frequency magnetic interference emanating from a power source providing low frequency switching currents. The power source typically has a supply current terminal and an oppositely disposed return current terminal. The technique is realized by enclosing the power source in an electrically conductive sheath, wherein the electrically conductive sheath has an input terminal disposed proximate the supply current terminal and an output terminal disposed proximate the return current terminal. The output terminal is electrically connected to the return current terminal. Also, the electrically conductive sheath has an opening proximate the supply current terminal for allowing access to the supply current terminal.

Inventors: Roberson; David L. (Forest, VA)

Assignee: Ericsson, Inc.

International Classification: H05K 9/00 (20060101); H05K 009/00 ()

Expiration Date: 10/23/2018