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:
Jun. 14, 2011
Filed:
Oct. 07, 2009
Viswanathan Nagarajan, Bangalore, IN;
Sriram Murali, Bangalore, IN;
Sthanunathan Ramakrishnan, Bangalore, IN;
Visvesvaraya Pentakota, Bangalore, IN;
Jaiganesh Balakrishnan, Bangalore, IN;
Viswanathan Nagarajan, Bangalore, IN;
Sriram Murali, Bangalore, IN;
Sthanunathan Ramakrishnan, Bangalore, IN;
Visvesvaraya Pentakota, Bangalore, IN;
Jaiganesh Balakrishnan, Bangalore, IN;
Texas Instruments Incorporated, Dallas, TX (US);
Abstract
A time-interleaved (TI) analog-to-digital converter (ADC) is provided. The TI ADC generally comprises a clock generator, two or more ADCs, adjustable delay elements, and an estimator. The clock generator generates clock signals. Each ADC is associated with at least one of the clock signals so as to sample an input signal that is generally wide-sense stationary at sampling instants, where correlation function exist between samples from a two or more of the ADCs that is a function of the time differences between associated sampling instants. The estimator is coupled to each of the adjustable delay elements and each of the ADCs so as to calculate the correlation function and adjust the adjustable delay elements to account for sampling mismatch between the ADCs based at least in part on the correlation function.