Patent ID: 8630600
Filing Date: 2014-01-14
Classification: H03C,H03D,H04B,H04L

Abstract:
1. A signal receiving system configured to convert a first modulated signal to a second modulated signal, the signal receiving system comprising: an I/Q demodulator configured to demodulate the first modulated signal to an in-phase (“I”) signal and a quadrature (“Q”) signal based on a first oscillator signal, the first modulated signal being previously modulated based on a second oscillator signal that is asynchronous to the first oscillator signal; an I/Q signal adjustor configured to adaptively adjust the I or Q signal to increase a signal-to-noise ratio (SNR) of a transitory signal that is based on the second modulated signal, the I or Q signal being adjusted based on a calculated error determined for the transitory signal; an I/Q modulator configured to generate the second modulated signal based on the I signal and the Q signal as adjusted; and a downstream demodulator configured to demodulate the transitory signal and to assist in determining the calculated error for the transitory signal.