Infineon Technologies Ag

Lantiq Deutschland Gmbh

Mario Träber

Holger Wenske

Armin Hanneberg

David Herbison

Thomas Eichler

Marc Hesener

Christoph Schwarzer

An integrated circuit includes an output terminal to be coupled to a light-emitting diode, an output circuit coupled to the output terminal, the output circuit being configured to supply an operating signal to the light-emitting diode, a measuring circuit coupled to the output terminal and a control circuit coupled to the measuring circuit. The measuring circuit is configured to sense on the output terminal a signal value outside an operating regime of the light-emitting diode, the signal value being a voltage below a forward voltage of the light-emitting diode or a current below a threshold current of the light-emitting diode. The control circuit is configured to configure at least one function of the integrated circuit when the signal value as sensed by the measuring circuit corresponds to a voltage below the forward voltage of the light-emitting diode or a current below the threshold current of the light-emitting diode.

Integrated circuit with a measuring circuit and method of configuring an integrated circuit with a measuring circuit

A device and method for predicting noise in a signal that is received by a digital receiver is provided. The device includes an autocorrelation function determination device and a noise predictor device. Also included in the device is an adaptive filter that produces a prediction error value for the received signal and the adaptive filter adjusts the filter coefficients as a function of a prediction error of the adaptive filter. Using the filter coefficient of the adaptive filter, the method may determine the autocorrelation function of the received signal. The noise estimated values for the noise contained in the received signal may be computed on a basis of the autocorrelation function of the received signal. The embodiment also may facilitate noise prediction when heavy correlated noise is present.

Process and device for the prediction of noise contained in a received signal

In the digital filtering of an input signal (), which has been produced by interpolation of a pilot signal (), under certain circumstances numerous values originating from the past have to be stored. In order to reduce the storage space required for these and the associated power consumption, the values of the input signal (), which are needed for computation of the values of an output signal (), are compressed and stored in compressed form. More particularly here the values of the input signal () are divided into symbol periods, in which a coherent range of memory values, which are the only data-carrying values in the symbol period, occurs in each case. These values are stored together with the length of the symbol period, so that although each symbol period can be described completely, storage space is reduced. The values to be stored can be seamlessly stored in a FIFO memory, whereby an address is determined as a function of the length of the symbol periods, under which the desired value can be accessed in the FIFO memory.

Method and device for digital filtering of interpolated values

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Deisenhofen, Germany

Mario Träber