Patent application number | Description | Published |
20080315956 | Saturation Handling - Saturation handling for preventing a power amplifier from going into a saturation condition is disclosed. | 12-25-2008 |
20090088100 | Method and Apparatus for Regulating a Power Amplifier - A method for regulating a power amplifier for operation in a timeslot data transmission system comprises providing the power amplifier with a bias for setting an operating point for the power amplifier, wherein the bias has a respective bias value. In addition, a supply voltage control signal is provided, wherein a supply voltage value is set such that a prescribed output power value of the power amplifier is attained. The bias value is changed to a new bias value. These steps are repeated until a prescribed criterion is met, but for at least one subsequent timeslot. Next the bias value of the subsequent timeslot is set to the bias value of the previous timeslot. | 04-02-2009 |
20090163155 | METHODS FOR CALIBRATING A TRANSMITTER, AND RADIO TRANSMITTER - In an embodiment, a radio transmitter may be provided. The radio transmitter may include a radio transmitter control loop; and a controller configured in such a way that it operates the radio transmitter control loop as a closed control loop in a first operating mode, and that it operates the radio transmitter control loop as an open control loop in a second operating mode. | 06-25-2009 |
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 |
20120169424 | Apparatus and Method for Providing Amplifier Linearity Information - An apparatus for providing a linearity information associated with an amplifier includes an operating state determinator and an evaluator. The operating state determinator is configured to obtain information describing a gain of the amplifier for at least one bias condition of the amplifier. The evaluator is configured to obtain the linearity information based on both the information describing the gain of the amplifier and information about the at least one bias condition of the amplifier using a gain-bias characteristic of the amplifier. A bias circuit including the apparatus for providing the linearity information is also disclosed. A corresponding method for providing the linearity information includes: using the information describing the gain of the amplifier and the information about the at least one bias condition with the gain-bias characteristics to determine a relation of a current operating point described by the information with respect to the gain-bias characteristic; and deriving the linearity information from said relation. | 07-05-2012 |
20120276862 | METHODS FOR CALIBRATING A TRANSMITTER, AND RADIO TRANSMITTER - In an embodiment, a radio transmitter may be provided. The radio transmitter may include a radio transmitter control loop; and a controller configured in such a way that it operates the radio transmitter control loop as a closed control loop in a first operating mode, and that it operates the radio transmitter control loop as an open control loop in a second operating mode. | 11-01-2012 |
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 |