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:
Nov. 01, 2016
Filed:
Sep. 11, 2012
Applicant:
Frank Op 't Eynde, Wilsele, BE;
Inventor:
Frank Op 'T Eynde, Wilsele, BE;
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03M 7/00 (2006.01); H03M 1/06 (2006.01); H03M 3/00 (2006.01); H03M 1/66 (2006.01);
U.S. Cl.
CPC ...
H03M 1/0626 (2013.01); H03M 1/0612 (2013.01); H03M 1/662 (2013.01); H03M 3/504 (2013.01);
Abstract
A Digital-to-Analog Converter contains a digital shift register and a digital multiplexer. During each input signal clock period, the Digital-to-Analog Converter is multiplexed in time to perform multiple conversions on samples stored in the shift register. In this way, a weighted average of several signal samples is calculated, which corresponds to a FIR filter operation. Errors due! to Quantization Noise, INL or DNL undergo the same FIR filter characteristic.