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. 05, 2013
Maxim Integrated Products, Inc., San Jose, CA (US);
Gabriele Cazzaniga, Rosate, IT;
Luciano Prandi, Bellinzago Novarese, IT;
Carlo Caminada, Pregnana Milanese, IT;
Federico Forte, Novara, IT;
Maxim Integrated Products, Inc., San Jose, CA (US);
Abstract
Various embodiments of the invention provide for improved performance by reducing a quadrature error signal. In certain embodiments, this is accomplished by using a mixed-signal architecture comprising analog and digital circuit components in a closed-loop configuration that generates from a detected quadrature error signal a calibration quadrature signal that is then compensated at a virtual ground of an analog front end circuit. Some embodiments allow for pre-calibration for quadrature error and/or adaptive compensation of unwanted drift effects of the quadrature error, including temperature drifts.