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:
Jan. 26, 2010
Filed:
Nov. 30, 2005
Guenael J. Strutt, Sanford, FL (US);
Guenael J. Strutt, Sanford, FL (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
A technique for improving the capability of measuring the distance between nodes of a wireless communication network is provided. Technique () includes receiving a measured signal, correlating the measured signal with a reference signal to output a measured correlated function, comparing the correlation function to a predetermined reference correlation function, the reference correlation function being based on a predetermined direct path sequence and an estimation of the phase delay of the measured correlated function. A score is assigned to the measured correlation function based on how close the measured correlation function resembles the predetermined reference correlation function. Technique () provides improved location accuracy, even in multipath environments, by indicating the quality of the TOA measurement and enabling the selection of a correction mechanism.