Alcatel

Stmicroelectronics S.a.

Ipg Electronics 504 Limited

Imerj, Ltd.

Bruno Lagoguez

Jean Claude Brigaud

Gabriel Della-Monica

Mikaël Pouliquen

Mika&euml;l Pouliquen

Radiocommunication terminals are disclosed. A radiocommunication terminal includes a power supply, a power amplifier configured to receive and amplify a signal using power drawn from the power supply, and a control unit configured to control the power amplifier to amplify the signal by an amount of amplification based on a requested amount of amplification and a level of a voltage provided on an output terminal of the power supply.

Devices for controlling amplification of a signal emitted by a mobile terminal and increasing the autonomy of the mobile terminal

A method of controlling amplification of a signal emitted by a radiocommunication terminal including a power amplifier and a power supply battery includes the steps of detecting the output power of the amplifier and converting the output power into a detected voltage, comparing the detected voltage with a set point voltage, and adapting the input power of the power amplifier as a result of the comparison. The detected voltage and/or the set point voltage is rendered dependent on the voltage of the power supply battery during the step of detecting and converting the output power of the amplifier.

Method and a device for controlling amplification of a signal emitted by a mobile terminal and increasing the autonomy of the mobile terminal

A method for controlling in closed loop an analog system generating an output signal from a control signal, wherein the control signal is a series of digital values, each new digital value being determined based on the difference between a signal linked to the output signal and the last determined value of the control signal multiplied by a selected factor. The present invention also relates to a device for controlling an analog system generating an analog output signal.

Closed-loop control of an analog system providing an output signal with a control signal

The invention relates to a device for transmitting radiofrequency signals using a power amplifier. The power amplifier is connected to a power regulation loop for regulating its gain in such a manner as to bring the output power level to a desired nominal level. The regulation loop acts on the bias voltage as a function of the output from the power amplifier. According to the invention, the device further comprises adjustment means such as an integrating RC circuit for supplying an additional voltage to the regulation loop in such a manner that the input signal to the loop is more responsive and less dependent on the active components of the power amplifier. The invention is particularly applicable in the field of mobile transmission.

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Claix, France

Bruno Lagoguez