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:
Aug. 29, 2017
Filed:
Mar. 02, 2017
Guzik Technical Enterprises, Mountain View, CA (US);
Valeriy Serebryanskiy, Santa Clara, CA (US);
Anatoli B. Stein, Atherton, CA (US);
Guzik Technical Enterprises, Mountain View, CA (US);
Abstract
A method and apparatus for processing a periodic analog signal using a composite ADC including a time interleaved set of sub-ADCs, to produce a replica signal representative of the analog signal, wherein the replica signal is characterized by suppression of additive noise on the periodic analog signal, and correction of sub-ADC-caused distortions. Streams of samples from the respective sub-ADCs are accumulated separately for respective positions in signal periods of the periodic analog signal to provide sub-replicas. Fourier transforms of the replicas are determined for the different sub-ADCs, and those Fourier transforms are averaged to obtain a mean Fourier transform. Frequency responses of the sub-ADCs are corrected by dividing the mean Fourier transform by the respective sub-ADC frequency responses. An averaged replica of the signal period is obtained by determining an inverse Fourier transform of the corrected mean Fourier transform.