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. 31, 2009
Filed:
Sep. 27, 2005
Daisuke Kawaguchi, Kanagawa, JP;
Daisuke Kawaguchi, Kanagawa, JP;
NEC Electronics Corporation, Kawasaki, JP;
Abstract
A mobile station receives first and second signals from first and second antennas. A plurality of fingers each demodulate the signals for one propagation path. A Rake combiner combines the demodulated signals by removing phase fluctuations among the fingers. Each finger includes a correlator descrambling the first and second signals for the propagation path, a channel coefficient calculating section calculating first and second channel coefficients of the descrambled signals, first and second average channel coefficient calculating sections calculating first and second average channel coefficients of the first and second channel coefficients, respectively, a synchronous detector performing a synchronous detection upon the descrambled signals using the average channel coefficients, and a channel coefficient clearing section detecting a path switching of the first and second signals to clear either one of the first and second channel coefficients or one of the first and second average channel coefficients.