Patent application number | Description | Published |
20090156143 | POWER CONTROL LOOP, TRANSMITTER WITH THE POWER CONTROL LOOP AND METHOD FOR CONTROLLING OUTPUT POWER OF A TRANSMITTER DEVICE - A power control loop includes a low-frequency signal path and a high-frequency signal path with the delay compensation block. The delay compensation block is used to determine a correlation between an average reference level and an average measured power level. The result may control a delay line to compensate a time misalignment in the power control loop. | 06-18-2009 |
20090298448 | STRATEGY FOR USING THE ENVELOPE INFORMATION WITHIN A CLOSED LOOP POWER CONTROL SYSTEM - A power control system includes a reference path filter used to suppress high frequencies in an input signal and generate a filtered envelope signal, a reference path amplifier to scale the filtered input signal based on a gain signal and generate a reference signal, a signal path amplifier to amplify an RF modulated signal and generate a signal path output signal scaled by a gain of an actuator signal, and a power detector to detect a power associated with the signal path output signal. The system includes an ADC to receive, pre-filter and convert the detected envelope signal into a measurement signal, and a comparator block to receive the reference signal and the measurement signal, and generate an error signal based on the difference, and a controller to generate the actuator signal for controlling the gain of the signal path amplifier based on the error signal. | 12-03-2009 |
20100008410 | Continuous Open Loop Control to Closed Loop Control Transition - This disclosure relates to a continuous open loop control to closed loop control transition. | 01-14-2010 |
20100069026 | Transmitter with Hybrid Closed Loop Power Control - Systems and method for implementing a transmitter with hybrid closed loop power control in a communication device. | 03-18-2010 |
20100091828 | Digital Phase Feedback for Determining Phase Distortion - A feedback loop is used to determine phase distortion created in a signal by directly extracting the phase distortion information from a feedback signal using original frequency modulation information. | 04-15-2010 |
20100136937 | Polar Feedback Receiver for Modulator - This disclosure relates to linearization in polar modulators of wireless communication devices, to attain linear amplification and high power efficiency during transmission. | 06-03-2010 |
20130029616 | Transmitter with Hybrid Closed Loop Power Control - Systems and method for implementing a transmitter with hybrid closed loop power control in a communication device. | 01-31-2013 |
20130294543 | POLAR FEEDBACK RECEIVER FOR MODULATOR - This disclosure relates to linearization in polar modulators of wireless communication devices and associated methods, to attain linear amplification and high power efficiency during transmission. | 11-07-2013 |