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:
Feb. 04, 2014
Filed:
Feb. 28, 2013
Sanjoy K. Dey, Noida, IN;
Ammisetti V. Prasad, Hyderabad, IN;
Mahendra Pal Singh, Noida, IN;
Freescale Semiconductor, Inc., Austin, TX (US);
Abstract
A data acquisition system for converting an analog input signal to a digital output signal includes a programmable gain amplifier (PGA), an analog to digital converter (ADC), and an averaging module. The PGA generates first and second amplified signals during respective first and second conversion cycles. The first and second amplified signals include respective first and second amplified input signals and first and second sets of offset and noise signals. The first and second amplified input signals have the same polarities, and the first and second sets of offset and noise signals have opposite polarities. The ADC generates first and second digital samples corresponding to the first and second amplified signals respectively and the averaging module averages the first and second digital samples to eliminate the first and second sets of offset and noise signals from the digital output signal.