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:
Jul. 01, 2014

Filed:

Jul. 19, 2013
Applicant:

St-ericsson SA, Plan-les-Ouates, CH;

Inventors:

Marc Houdebine, Crolles, FR;

Julien Kieffer, Grenoble, FR;

Sebastien Rieubon, Saint-Jean-de-Moirans, FR;

Assignee:

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

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03L 7/18 (2006.01); H03L 7/093 (2006.01);
U.S. Cl.
CPC ...
Abstract

According to embodiments, dual path loop filter circuits are described which have, for example, a single charge pump. The current flow in the DPLF circuit is architected to source, during an injection time period, a first current to the loop filter, sink, also during the injection time period, a second current from the loop filter, wherein the first current has a magnitude of α*I and the second current has a magnitude of β*I, and sink, during a linearization time period, a third current from the loop filter, wherein the third current has a magnitude of (α−β)*I.


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