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. 11, 2007
Filed:
Dec. 21, 2001
Applicants:
Seigo Nakao, Gifu, JP;
Nobuhiro Masaoka, Gifu, JP;
Inventors:
Seigo Nakao, Gifu, JP;
Nobuhiro Masaoka, Gifu, JP;
Assignee:
Sanyo Electric Co., Ltd., Osaka, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04B 1/00 (2006.01); H03D 1/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
In a user signal processing unit USP, adaptive array processing is performed for a reception signal vector X(t) from array antennas #to #. Based on an output signal y(t) of an adaptive array and a reference signal, an amount of frequency offset Δθ is estimated. A swap detecting unit SDP detects an occurrence of swap, based on the estimated amount of offset Δθ, frequency of error occurrence and the like.