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:
Mar. 31, 2009
Filed:
Aug. 31, 2005
Bobby L. Barnes, Falls Church, VA (US);
Timothy R. Miller, Arlington, VA (US);
Bobby L. Barnes, Falls Church, VA (US);
Timothy R. Miller, Arlington, VA (US);
Freescale Semiconductor, Inc., Austin, TX (US);
Abstract
A system () and method () are presented for calibrating an analog signal path () associated with an Ultra Wideband (UWB) receiver (). The analog signal path includes a plurality of analog gain stages (-), a local oscillator mixer stage (), a compensation stage (), and a converter stage (). A frequency offset of 4 Mhz is applied to a local oscillator signal to reduce a correlation between a received signal and the local oscillator signal. One of the analog gain stages is activated and an offset obtained at the converter stage is stored as a compensation value (). The compensation value is retrieved whenever the analog gain stages is activated during normal processing and the compensation value applied at the compensation stage to reduce the offset.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile