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. 13, 2011
Filed:
Feb. 22, 2007
Tadashi Nakamura, Kawasaki, JP;
Tadashi Nakamura, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A wireless communication device which permits reduction in the scale of circuitry as well as in the power consumption. The wireless communication device includes an array of antennas, an adaptive array searcher, and a data demodulator. The adaptive array searcher detects the phase difference between the antennas and estimates the direction of arrival of received radio waves. The data demodulator demodulates the radio signal received by the antennas. The adaptive array searcher shares part of circuitry with a calibrator which performs calibration by correcting the phase difference caused between antenna channels in the wireless communication device, and thus has a calibration function incorporated therein.