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. 17, 2015
Filed:
Sep. 07, 2012
Nirmal C. Warke, Irving, TX (US);
Robert F. Payne, Lucas, TX (US);
Gerd Schuppener, Allen, TX (US);
Brad Kramer, Plano, TX (US);
Nirmal C. Warke, Irving, TX (US);
Robert F. Payne, Lucas, TX (US);
Gerd Schuppener, Allen, TX (US);
Brad Kramer, Plano, TX (US);
Texas Instruments Incorporated, Dallas, TX (US);
Abstract
A method is provided. A multi-amplitude signal is received and downconverted so as to generate I and Q signals using a local oscillator signal. The I and Q signals are equalized, and the equalized I and Q signals are digitized. First and second gains are adjusted with the second and first digital signals, respectively, and applied to the equalized I and Q signals, respectively. The difference between the first and second amplified signals is determined, and an error signal is generated from the difference between the first and second amplified signals. The local oscillator signal is then adjusted with the error signal.