Patent ID: 6745015
Filing Date: 2004-06-01
Classification: H03C

Abstract:
A method of carrier suppression tuning of a wireless communication device utilizing quadrature modulation in a transmission path, the device including a quadrature modulator, a power detector and a processor coupled to the quadrature modulator and the power detector, the method comprising the steps of:enabling the transmission path of the device; setting first and second DC offset values to default values; sampling output voltages from the power detector and adjusting the first DC offset value based on the sampled voltages; sampling output voltages from the power detector and adjusting the second DC offset value based on the sampled voltages; and repeating the step of sampling output voltages and adjusting the first DC offset value and the step of sampling output voltages and adjusting the second DC offset value until the power detector produces an output that is less than a predetermined threshold value.