Quadrature demodulator for compensating for gain and phase...

Details Quadrature demodulator for compensating for gain and phase... Quadrature demodulator for compensating for gain and phase...

2006-03-07

2006-03-07

Bocure, Tesfaldet (Department: 2631)

Pulse or digital communications

Receivers

Reexamination Certificate

active

07010059

ABSTRACT:
Disclosed is a quadrature demodulator for high-speed wireless communication, which comprises: an A/D converter for converting received signals into digital signals; a signal recovery unit for recovering carriers and symbol timing from the signals converted by the A/D converter; a decision unit for detecting recovered signals output by the signal recovery unit, and performing a decision process on them; an I/Q gain imbalance detector for detecting gain imbalances of the I and Q-phase components from the recovered signals, and outputting an I/Q gain compensation value for compensating for the gain imbalances; and an I/Q gain compensator, provided between the A/D converter and the signal recovery unit, for reflecting the I/Q gain compensation value output by the I/Q gain imbalance detector to the received signals.

REFERENCES:
patent: 5705949 (1998-01-01), Alelyunas et al.
patent: 5949821 (1999-09-01), Emami et al.
patent: 6009317 (1999-12-01), Wynn
patent: 6044112 (2000-03-01), Koslov
patent: 6512800 (2003-01-01), Amir et al.
patent: 6535560 (2003-03-01), Masenten
patent: 6704349 (2004-03-01), Masenten
patent: 6842489 (2005-01-01), Masenten
patent: 2003/0179836 (2003-09-01), Masenten
patent: 2004/0057534 (2004-03-01), Masenten et al.
patent: 2004/0146120 (2004-07-01), Brown
patent: 001363391 (2003-11-01), None
patent: 06-188928 (1994-07-01), None

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