Patent ID: 7532671

Claim:
A gain controller comprising: a first delay circuit configured to receive an in-phase (I) signal and output a delayed I signal; a second delay circuit configured to receive a quadrature (Q) signal and output a delayed Q signal; a normalization circuit for adjusting the gain of the received I and Q signals on a block-by-block basis as a function of averaged combined signal strength measurements of the received I and Q signals; a first multiplier having a first input electrically coupled to an output of the first delay circuit, and a second input electrically coupled to an output of the normalization circuit used to adjust the gain of the delayed I signal, wherein the first multiplier outputs a value substantially equal to the delayed I signal divided by the averaged combined signal strength of the received I and Q signals; and a second multiplier having a first input electrically coupled to an output of the second delay circuit, and a second input electrically coupled to an output of the normalization circuit used to adjust the gain of the delayed Q signal, wherein the second multiplier outputs a value substantially equal to the delayed Q signal divided by the averaged combined signal strength of the received I and Q signals.