COMPENSATION DEVICE, SIGNAL GENERATOR, AND WIRELESS COMMUNICATION DEVICE

Title:

COMPENSATION DEVICE, SIGNAL GENERATOR, AND WIRELESS COMMUNICATION DEVICE

Document Type and Number:

WIPO Patent Application WO/2013/015279

Kind Code:

A1

Abstract:

A compensation device for performing compensation processing to remove image components generated by a quadrature demodulator (5) in relation to a quadrature demodulation signal outputted by the quadrature demodulator (5), which performs quadrature demodulation using a signal having a carrier frequency (fc), the compensation device comprising a signal generator (10) for generating a reference signal having a predetermined bandwidth in a receiving band and used for providing the reference signal to the input side of the quadrature demodulator (5). The reference signal has a bandwidth biased to the high-frequency side or the low-frequency side in relation to the carrier frequency.

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Inventors:

ONISHI MASAHIKO (JP)
KATSURA ISAO (JP)

Application Number:

PCT/JP2012/068706

Publication Date:

January 31, 2013

Filing Date:

July 24, 2012

Export Citation:

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Assignee:

SUMITOMO ELECTRIC INDUSTRIES (JP)
ONISHI MASAHIKO (JP)
KATSURA ISAO (JP)

International Classes:

H04B1/16; H03D7/18; H03L7/12; H04B1/10; H04B1/26; H04L27/14

Foreign References:

JP2007104522A	2007-04-19
JPH08307465A	1996-11-22
JPH10163756A	1998-06-19
JPH06224691A	1994-08-12
JP2010130630A	2010-06-10

Other References: