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. 15, 1997
Filed:
Nov. 02, 1994
Applicant:
Inventors:
Alfredo R Linz, Austin, TX (US);
Glen Brown, Austin, TX (US);
Assignee:
Advanced Micro Devices, Inc., Austin, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
3647241 ;
Abstract
This invention is for a multi-stage digital decimation filter, which includes a sinc.sup.6 filter, a half-band linear phase FIR filter and a symmetric, linear phase, FIR filter and a digital compensation filter. The multi-stage decimation filter down-samples the output of a sigma-delta modulator by a factor of about 64. The compensation filter provides compensation for rolloff introduced by the multi-stage decimation filter.