The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Feb. 23, 2016

Filed:

May. 15, 2012
Applicants:

Christian Fraisse, Grenoble, FR;

Angelo Nagari, Grenoble, FR;

Inventors:

Christian Fraisse, Grenoble, FR;

Angelo Nagari, Grenoble, FR;

Assignee:

ST-ERICSSON SA, Plan-les-Ouates, CH;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61F 11/06 (2006.01); G10K 11/16 (2006.01); G10K 11/178 (2006.01); H03F 3/217 (2006.01); H03K 7/08 (2006.01);
U.S. Cl.
CPC ...
G10K 11/178 (2013.01); H03F 3/217 (2013.01); H03K 7/08 (2013.01);
Abstract

The electronic device and a corresponding signal processing method disclosed herein reduces electromagnetic noise. To that end, the electronic device includes a delay line, an oscillator, and a modulator. The delay line generates a spread spectrum clock signal from an input clock signal, where a timing jitter and a period of jitter of the spread spectrum clock signal are controlled at each period of the spread spectrum clock signal based on a digital code. The oscillator uses the spread spectrum clock signal to generate a processing signal. The modulator modulates the processing signal as a function of an audio signal.


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