Patent ID: 9337965
Filing Date: 2016-05-10
CPC Classification: H03C,H03D,H04B,H04L

Claim Text:
1. A signal receiving system comprising: a first demodulator configured to use a local oscillator to demodulate a current first modulated signal into a current in-phase (I) signal and a current quadrature (Q) signal, the current first modulated signal being previously modulated using a transmitter oscillator that is not synchronized with the local oscillator; an I/Q signal adjustor coupled to the first demodulator and configured to adaptively adjust at least one of the current in-phase signal or the current quadrature signal based on a current feedback signal to generate a current adjusted I/O signal; a remodulator coupled to the I/Q signal adjustor and configured to remodulate the current adjusted I/Q signal to a current second modulated signal before transmission onto a cable; and a telemetry receiver coupled to the I/O signal adjustor and configured to receive the current feedback signal from a telemetry transmitter and to provide the current feedback signal to the I/Q signal adjustor, the current feedback signal being based on error information measured in a previous I/Q signal that was generated from a previous second modulated signal.