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:
Oct. 09, 2001
Filed:
Jan. 08, 2001
Applicant:
Inventor:
Christoph Braun, Düren, DE;
Assignee:
Infineon Technologies AG, Munich, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03M 1/66 ;
U.S. Cl.
CPC ...
H03M 1/66 ;
Abstract
A multibit digital/analog converter has M delta-sigma modulators and a sorting logic unit. The sorting logic unit selects a number of DA elements based on an input signal of the converter in such a way that the DA elements associated with the quantizers having the largest output signal are selected. The sorting logic unit provides output signals which are fed back negatively. oversampling and changing the allocation of the DA elements eliminates the error influence of the DA elements on the linearity with relatively little complexity.