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:
Dec. 10, 1991

Filed:

Feb. 07, 1990
Applicant:
Inventors:

Frederic Boutaud, Houston, TX (US);

Pierre Carbou, Venice, FR;

Paul Correia, Antibes, FR;

Assignee:
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03M / ;
U.S. Cl.
CPC ...
341150 ; 341143 ;
Abstract

This digital-analog conversion system comprises a digital modulator (1) having several quantification levels formed by a second order Delta-Sigma modulator and a digital-analog converter and switched capacitors filter set (3) whose law of progression between the different analog levels is independent of the absolute and relative values of the constituent components of the said assembly.


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