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. 10, 2015
Filed:
Mar. 12, 2015
Texas Instruments Incorporated, Dallas, TX (US);
Sthanunathan Ramakrishnan, Karnataka, IN;
Sashidharan Venkatraman, Karnataka, IN;
Sreenath Narayanan Potty, Kerala, IN;
Sunil Chomal, Karnataka, IN;
Nagarajan Viswanathan, Karnataka, IN;
Jawaharlal Tangudu, Karnataka, IN;
TEXAS INSTRUMENTS INCORPORATED, Dallas, TX (US);
Abstract
A system can include a signal image correlator receives a discrete frequency domain representation of a signal tone in an interleaved analog-to-digital (IADC) signal and an image of the signal tone in the discrete frequency domain representation of the IADC signal and determines a correlation between the signal tone and the image of the signal tone, a power of the signal tone and a power of the image of the signal tone. The system can also include a frequency domain estimator that determines an instantaneous frequency domain mismatch profile estimate based on the correlation between the signal tone and the image of the signal tone. The system can further include an averaging filter that averages the instantaneous frequency domain mismatch profile estimate over time to provide a frequency domain mismatch profile estimate.