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. 15, 2011
Filed:
Apr. 23, 2008
Jeffrey Kent Hunter, Olathe, KS (US);
Timothy Gibson, Overland Park, KS (US);
Jeffrey Kent Hunter, Olathe, KS (US);
Timothy Gibson, Overland Park, KS (US);
Honeywell International Inc., Morristown, NJ (US);
Abstract
Described herein are methods and apparatuses for receiving a desired signal at a signal receiver with an undersampling frequency. A signal converter with a local oscillator frequency, a bandpass filter, and an analog-to-digital converter are used to generate an aliased discrete-time spectrum from an input analog spectrum. In order to determine the presence of interfering signals in the aliased discrete-time spectrum and, if present, separate a desired signal from the interfering signal, the local oscillator frequency is shifted. The original discrete-time spectrum and the resulting shifted discrete-time spectrum are both analyzed to select a local oscillator frequency that does not cause interference with the desired signal when the discrete-time spectrum is generated. The selected local oscillator frequency is then utilized to process the desired signal.