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. 05, 2006
Filed:
Jun. 20, 2005
Tomi Mattila, Espoo, FI;
Olli Jaakkola, Helsinki, FI;
Ville Kaajakari, Espoo, FI;
Aarne Oja, Espoo, FI;
Heikki Seppä, Helsinki, FI;
Tomi Mattila, Espoo, FI;
Olli Jaakkola, Helsinki, FI;
Ville Kaajakari, Espoo, FI;
Aarne Oja, Espoo, FI;
Heikki Seppä, Helsinki, FI;
Nokia Corporation, Espoo, FI;
Abstract
Method for stabilizing the frequency of a frequency synthesizer by means of a reference oscillator unit coupled to a voltage controlled oscillator (VCO) and a frequency synthesizer, wherein the synthesizer is provided with a phase locked loop (PLL) to stabilize the operation of the voltage controlled oscillator, wherein the reference oscillator unit is a MEMS (MicroElectromechanicalSystems) reference oscillator unit, the temperature of the MEMS reference oscillator unit is measured, and the output frequency is corrected according to the measured temperature by using a frequency/temperature function.