St-Ericsson Sa

Stmicroelectronics (Grenoble 2) Sas

Sierra Wireless, Inc.

François Sittler

Laurent Noel

Dominique Brunel

Didier Harnay

Jacques Mathe

Stéphane Pineau

A method for dynamically clocking one component located into a Wireless telecommunication apparatus comprising a RF transceiver subject to desensizitation by said component EMI, characterized in that it involves the steps of performing an adaptive control on the clock rate of said component so as to locate a wideband noise PSD null just to the left or to the right, in the frequency domain, of the RF transceiver wanted carrier frequency (f) Particularly, the control is performed by means of the control of programmable frequency dividers, and under the control of a general control unit (UCM) for the purpose of performing a contextual analysis of the current mode of operation of said wireless telecommunications and, in response to said contextual analysis, for determining the fine tuning of the clock rate to be applied to said component.

Process and apparatus for reducing EMI in the RF subsystem of a wireless communication system

Growing community of inventors

Thorigne-Fouillard, France

François Sittler