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.
Patent No.:
Date of Patent:
Apr. 14, 2015
Filed:
Jul. 12, 2012
Applicant:
Robert Henrikus Margaretha Van Veldhoven, XM Dommelen, NL;
Inventor:
Robert Henrikus Margaretha Van Veldhoven, XM Dommelen, NL;
Assignee:
St-Ericsson SA, Plan-Les-Ouates, CH;
Primary Examiner:
Int. Cl.
CPC ...
H03M 3/02 (2006.01); H03M 7/30 (2006.01); H03M 3/00 (2006.01);
U.S. Cl.
CPC ...
H03M 3/428 (2013.01); H03M 3/452 (2013.01); H03M 7/302 (2013.01);
Abstract
A sigma-delta modulator for an ADC, passes an input signal to a loop filter, then to a multi-bit quantizer of the modulator. An output of the quantizer is passed to a digital filter, and a feedback signal is passed back to the loop filter, the feedback signal having fewer bits than are produced by the multi-bit quantizer. The digital filter has an order greater than one in the passband of the sigma-delta modulator.