Patent ID: 8699976
Filing Date: 2014-04-15
Classification: H03G,H04W

Abstract:
1. A transmitter in a communication device comprising: a pre-amplifier and buffer that amplifies a voltage input signal, a modulator that converts the amplified signal into a radio frequency-modulated signal; a gain control component that controls an output power of the radio frequency-modulated signal, wherein the output power is adjusted by adjusting a gain of the gain control component in accordance with a hybrid power control loop that includes open loop mode control and closed loop control; a multiplier that controls the output power of the radio frequency-modulated signal, wherein the output power is adjusted by adjusting a gain of the multiplier in accordance with the hybrid power control loop that includes open loop mode control and closed loop control; and a hybrid control port from which output power of the transmitter is controlled by providing a closed loop control signal related to an error signal employed for adjusting the gain of the multiplier, or providing an open loop control signal for adjusting the gain of the gain control component.