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:
Apr. 11, 2006
Filed:
Feb. 25, 2000
Andrew John Aftelak, Basingstoke, GB;
Andrew John Aftelak, Basingstoke, GB;
Motorola, Inc., Schaumburg, IL (US);
Abstract
A frequency tracking loop () includes: a mixer () for correcting frequency offset of an input radio signal that includes bursts of known data; a frequency offset estimator (), for providing an estimate of frequency offset; a variable bandwidth filter (), for providing a filtered signal; an oscillator () for supplying a second input of the mixer with a signal whose frequency depends on the filtered signal; the frequency tracking loop () is adapted to change the bandwidth of the variable bandwidth filter () in dependence on at least one characteristic of the currently received burst of known data.
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