Infineon Technologies Ag

Intel Mobile Communications Gmbh

Carsten Eisenhut

Giuseppe Li Puma

Jens Kissing

Nenad Stevanovic

Peter Laaser

Dietolf Seippel

A multi-standard transceiver includes a first subunit configured to perform signal processing according to a first communication standard and a second subunit configured to perform signal processing according to a second communication standard. Furthermore, the multi-standard transceiver includes an interference cancellation unit configured to drive an estimated interference signal from a first signal generated by the first subunit by performing the signal processing according to the first communication standard, and perform interference cancellation on a second signal generated by the second subunit by performing the signal processing according to the second communication standard based on the estimated interference signal.

Multi-standard transceiver, device and method

A first signal path having an amplifier and a second signal path having an amplifier with adjustable gain factor are provided. A signal applied to the first and second signal paths is amplified and demodulated on the first signal path. Concurrently, the signal is amplified on the second signal path with a gain factor, and a power of the signal amplified by the second signal path is determined and used for determining the gain factor. A signal conditioning circuit has first and second signal paths and a first and a second operating state. In the first operating state, the first signal path is arranged for amplification for a demodulation, and the second signal path is arranged for amplification for determination of a power of the signal present. In the second operating state, one of the two signal paths is inactive and the other is arranged for demodulating the signal present.

Signal processing method, particularly in a radio-frequency receiver, and signal conditioning circuit

An amplifier arrangement contains a first signal input for supplying a carrier signal, a second signal input for supplying an amplitude modulation word and an amplifier stage. The amplifier stage is connected to a reference potential connection and, by means of a control connection via a means for DC signal suppression, to the first signal input. A DC voltage converter having a first connection for supplying a potential is designed to convert the potential into a supply potential, which is variable over a period of time, on the basis of a control signal, and outputs the supply potential to the second connection of the amplifier stage. In addition, the amplifier arrangement comprises a digital/analog converter which is coupled to the control connection of the amplifier stage. The input of the converter is connected to the second signal input.

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Mülheim a.d. Ruhr, Germany

Carsten Eisenhut