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. 15, 2005
Filed:
Oct. 11, 2002
Khurram Muhammad, Richardson, TX (US);
Robert B. Staszewski, Garland, TX (US);
Gennady Feygin, Dallas, TX (US);
Khurram Muhammad, Richardson, TX (US);
Robert B. Staszewski, Garland, TX (US);
Gennady Feygin, Dallas, TX (US);
Texas Instruments Incorporated, Dallas, TX (US);
Abstract
When a sample stream is decimated, frequency components from outside of a desired frequency band are aliased into the desired band, causing interference and loss of information. Different decimating ratios result in different frequencies aliasing into the desired frequency band. A current-mode sampling mixerwith capacitor banksandthat are controlled by a digital control unitwith a capability to integrate and decimate an RF current at different decimating ratios is able to measure the frequency spectrum with different decimating ratios. The measured frequency spectrum is then analyzed to detect the presence of interferers aliased into the desired frequency band. The interferers can then be eliminated or avoided.