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. 28, 2000
Filed:
May. 05, 1997
Applicant:
Inventors:
Assignee:
Nokia Mobile Phones Limited, Espoo, FI;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L / ;
U.S. Cl.
CPC ...
375344 ; 455257 ;
Abstract
A method for adjusting the frequency of an oscillator for a receiver circuit comprising: downconverting a received signal to generate a downconverted signal, counting the number of zero crossings of the downconverted signal over a predefined time interval, determining a correction number of zero crossings based on the data of the downconverted signal over the predefined time interval, determining a corrected number of zero crossings for the received signal based on the counted number of zero crossings and the correction number of zero crossings, adjusting the frequency of the oscillator based on the corrected number of zero crossings.