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:
Sep. 14, 2004
Filed:
Dec. 20, 2000
Ilkka Kontola, Julkujärvi, FI;
Nokia Mobile Phones, Ltd., Espoo, FI;
Abstract
The invention relates to a method for reducing the effect of multipath propagation in a receiver ( ) in which a code-modulated spread spectrum signal is received. In the method, at least one reference code (r(x)) corresponding to a code used in modulation is used to form at least two reference signals with different phases. Correlation between a received signal and each reference signal is performed to form correlation values. The method also comprises the steps of forming a divider function and performing at least a deconvolution step, in which a first time-to-frequency transformation is performed on the corelation results to form first transform results, and the first transform results are divided by the values of the divider function to form a division result. The invention also relates to a receiver ( ) for receiving a code modulated spread spectrum signal, and an electronic device ( ) comprising at least a positioning receiver ( ) with count ( ) for receiving a code modulated spread spectrum signal.