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:
May. 10, 2011
Filed:
Dec. 20, 2007
Takaaki Kishigami, Ota-ku, JP;
Takashi Fukagawa, Kawasaki, JP;
Yasuaki Yuda, Yokohama, JP;
Keiji Takakusaki, Yokohama, JP;
Shoji Miyamoto, Sendai, JP;
Takaaki Kishigami, Ota-ku, JP;
Takashi Fukagawa, Kawasaki, JP;
Yasuaki Yuda, Yokohama, JP;
Keiji Takakusaki, Yokohama, JP;
Shoji Miyamoto, Sendai, JP;
Panasonic Corporation, Osaka, JP;
Abstract
An adaptive antenna radio communication device comprises a divided band direction estimating unit for estimating the direction by calculating the cross correlations between a pilot signal and sub-carrier signals of the respective divided bands received by an array antenna and calculating a spatial profile from correlation matrices determined by combining the correlation values between antenna elements of the different sub-carriers according to the output of the cross correlation calculation; a divided band array weight creating unit for creating a weight of a receive array having a directional beam in the direction of estimation for each divided band; and a sub-carrier directivity creating unit for creating a directivity by multiplication-combining the created receive array weight with the corresponding sub-carrier signal.