Apparatus and method for wireless communication, and...

Details Apparatus and method for wireless communication, and... Apparatus and method for wireless communication, and...

2009-06-11

2011-11-01

Odom, Curtis (Department: 2611)

Pulse or digital communications

Transceivers

C375S267000, C375S295000, C375S347000, C375S349000, C455S100000, C455S103000, C455S500000, C455S526000

Reexamination Certificate

active

08050314

ABSTRACT:
A wireless communication apparatus includes a plurality of antenna branches for transmitting and receiving a wireless communication signal, a calibration coefficient calculator for calculating a calibration coefficient for each frequency band, the calibration coefficient correcting an imbalance in phase and amplitude existing between the antenna branches, a coefficient storage memory for storing the calibration coefficient of each frequency band, a calibration coefficient reader for reading the calibration coefficient of a frequency band of one of a transmission signal and a reception signal as a target to be calibrated, a calibration coefficient interpolator for interpolating a calibration coefficient of the frequency band if the coefficient storage memory stores no corresponding calibration coefficient of the frequency band, and a calibration coefficient multiplier for multiplying one of the transmission signal and the reception signal by one of the read calibration coefficient and the interpolated calibration coefficient.

REFERENCES:
patent: 7392015 (2008-06-01), Farlow et al.
patent: 2005-348236 (2005-12-01), None
patent: 2007-116489 (2007-05-01), None
patent: WO 00/60757 (2000-10-01), None
U.S. Appl. No. 12/474,710, filed May 29, 2009, Takano, et al.

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