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. 16, 2002
Filed:
May. 25, 2000
Duane L. Abbey, Cedar Rapids, IA (US);
Rockwell Collins, Inc., Cedar Rapids, IA (US);
Abstract
A high pass delta-sigma modulator apparatus is disclosed for use in analog-to-digital and digital-to-analog converters. The apparatus includes a signal input, a differentiator component, a signal transducer producing an output signal, an inverse signal transducer producing an input compatible feedback signal, and a feedback loop coupling a feedback signal back to said differentiator component. Also disclosed is a Nyquist response restoring delta-sigma modulator based analog-to-digital and digital-to-analog converter apparatus having a first modulator set, a first scaling component, a second modulator set and a post processing combiner. In the various embodiments, the modulator sets can include an analog signal input, a digital signal input, a quantizer, a digital resolution rounder, a digital resolution truncator, a digital-to-analog signal transducer, a digital resolution expander, a delta sigma modulator structure, a feedback structure, an analog signal output, and one or more digital signal outputs.