Infineon Technologies Ag

Lantiq Deutschland Gmbh

Gerhard Paoli

David Schwingshackl

Dietmar Sträussnigg

Dietmar Straeussnigg

Dietmar Straussnigg

Joerg Hauptmann

Gernot Kubin

Gerhard Nössing

Johannes Hohl

Implementations related to echo cancellation are depicted and described herein.

Echo cancellation

A method for creating a form of a non-linear filter suitable for reducing a computational complexity is proposed. The filter is resolved into polyphase components in such a way that the polyphase components can be interchanged with a conversion of the sampling rate of a signal to be sent to the filter or of a signal to be emitted by the filter. Corresponding filters and filter arrangements are also proposed. In this way, a computational complexity for calculating the signal to be emitted by the filter can be significantly simplified. The invention can be used in echo compensation.

Method for reducing a computational complexity in non-linear filter arrangements as well as corresponding filter arrangements

A method and a device for interpolating or decimating a signal is provided, the signal being processed by a plurality of signal processing means connected in series, which at least comprise means for increasing or reducing a clock rate of the signal and filtering means. To achieve adaptation to different operating modes or transmission standards, individual portions of the signal processing means connected in series can be bridged by bypasses. In addition, filtering parameters of the filtering means can be varied and factors, by which a clock rate of the signal is increased or reduced, can be changed.

Method and device for interpolating or decimating a signal

Method for transmitting charging signals via a data transmission path using resonance phenomena The invention provides a method for transmitting charging signals, in which an electrical resonance effect is provided, with an output current () being emitted from a line current driver device (), which output current () is passed through a data path filter block (), which has a data transmission path unit () and a matching filter unit (), to a line impedance (), and the matching filter unit () and the data transmission path unit () are set such that an electrical resonance effect occurs, which leads to a voltage peak occurring in a line voltage level ().

Method for transmitting charging signals via a data transmission path using resonance phenomena

An apparatus for transmitting charging signals on a data transmission path having a line impedance includes a driver device for setting a line voltage level that corresponds to the line impedance. The driver device is configured to provide, in response to a driver input voltage level, a driver output current and a driver output voltage level. A current detection unit provides a current signal indicative of the driver output current and a current signal matching unit receives the current signal from the current detection unit and adjusts a level of the current signal for further processing by a filter device and by a regulation device. A matching filter unit then matches the driver device to a data transmission path unit.

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Villach, Austria

Gerhard Paoli