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:
Oct. 03, 2017

Filed:

Jun. 23, 2016
Applicant:

Semiconductor Components Industries, Llc, Phoenix, AZ (US);

Inventor:

Alexander Heubi, La Chaux-de-Fonds, CH;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03M 1/06 (2006.01); H03M 1/08 (2006.01); H03F 3/45 (2006.01); H03M 3/00 (2006.01); H03M 1/12 (2006.01); H04R 3/02 (2006.01); H03M 1/00 (2006.01);
U.S. Cl.
CPC ...
H03M 1/08 (2013.01); H03F 3/45475 (2013.01); H03M 1/12 (2013.01); H03M 3/422 (2013.01); H03M 3/464 (2013.01); H03F 2200/03 (2013.01); H03F 2200/264 (2013.01); H03F 2203/45288 (2013.01); H03M 1/00 (2013.01); H03M 3/50 (2013.01); H04R 3/02 (2013.01);
Abstract

A system to convert between analog and digital signals, in some embodiments, comprises: a differentiator to produce a differentiated signal based on an input signal and a feedback signal; an integrator, coupled to the differentiator, to integrate the differentiated signal; a quantizer, coupled to the integrator, to quantize the integrated signal; and a low-pass feedback filter, coupled between an output of the quantizer and an input of the differentiator, to generate said feedback signal using the quantized signal, wherein the low-pass feedback filter pushes at least some noise of the quantized signal downward in the frequency spectrum.


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