Multiplex communications – Communication over free space
Reexamination Certificate
2011-03-29
2011-03-29
Hoang, Thai D (Department: 2463)
Multiplex communications
Communication over free space
C375S219000, C455S084000
Reexamination Certificate
active
07916672
ABSTRACT:
The present invention pertains to a method of calibrating reception properties of a radio frequency (RF) processor. The application describes two embodiments of the invention representing calibration of the properties using an auxiliary transmitter to generate a calibration signal internal to the RF processor.
REFERENCES:
patent: 5978415 (1999-11-01), Kobayashi et al.
patent: 7248625 (2007-07-01), Chien
patent: 7299006 (2007-11-01), Rofougaran et al.
patent: 7558556 (2009-07-01), Moloudi et al.
patent: 7647026 (2010-01-01), Darabi
patent: 7702362 (2010-04-01), Behrens et al.
patent: 7783251 (2010-08-01), Rofougaran et al.
patent: 2002/0193140 (2002-12-01), Behrens et al.
patent: 2004/0203472 (2004-10-01), Chien
patent: 2005/0260949 (2005-11-01), Kiss et al.
patent: 2007/0217488 (2007-09-01), Smaini et al.
patent: 2008/0039045 (2008-02-01), Filipovic et al.
patent: 2008/0045162 (2008-02-01), Rofougaran et al.
patent: 2008/0205571 (2008-08-01), Muhammad et al.
patent: 2008/0227409 (2008-09-01), Chang et al.
patent: 2009/0137213 (2009-05-01), Rofougaran et al.
patent: 2009/0154377 (2009-06-01), Tsuda et al.
patent: 2009/0186587 (2009-07-01), Sobchak et al.
patent: 2010/0093298 (2010-04-01), Pratt et al.
U.S. Appl. No. 12/017,372, Muhammad et al.
Imtinan Elahi et al., IIP2 Calibration by Injecting DC Offset at the Mixer in a Wireless Receiver, IEEE Transactions on Circuits and Systems, 2007.
Imtinan Elahi et al, I/Q Mismatch Compensation Using Adaptive Decorrelation in a Low-IF Receiver in 90-nm CMOS Process, IEEE Journal of Sol.-St. Cir., vol. 41, No. 2, Feb. 6.
Elahi Imtinan
Muhammad Khurram
Brady III Wade James
Hoang Thai D
Neerings Ronald O.
Telecky , Jr. Frederick J.
Texas Instruments Incorporated
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