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:
Dec. 12, 2006
Filed:
Dec. 30, 2004
Gerhard Kaminski, Fuerth, DE;
Gerhard Kaminski, Fuerth, DE;
Lucent Technologies Inc., Murray Hill, NJ (US);
Abstract
The present invention provides a method and an apparatus for selectively pretuning and updating a phase lock loop, deployed in an integrated circuit including an agile radio, such as a wideband or an ultra wideband frequency agile radio in a telecommunication system, for example, a reconfigurable multiband and/or multistandard mobile communication system. In one embodiment, a phase lock loop may comprise a digital storage having a first desired frequency. An oscillator may provide an oscillator frequency and a frequency generator circuit capable of producing at least one control signal may cause the oscillator to adapt the oscillator frequency based on the first desired frequency in response to a trigger signal. A pretune unit may apply a pretune voltage to a tuning element to cause the oscillator to calibrate the oscillator frequency to the first desired frequency. An output voltage may be added at the output of a loop filter to the pretune voltage to tune the output voltage of the loop filter such that to set the oscillator frequency substantially at the first desired frequency. An update unit may automatically determine whether one or more parameters of a phase lock loop unit have changed to dynamically update the pretune voltage.