Robert Boschgmbh

Rainer Cornelius

Joachim Wietzke

Ralf Duckeck

Heinz-Werner Pfeiffer

Kishore Krishnan

In order to provide a method for operating a navigation device, which also receives TMC data using two tuners for ascertaining an optimum travel route, using which an optimal travel route is ascertainable using the largest amount of TMC data possible, after a first search by the second tuner, the TMC data found are compared with those of the first tuner and to use the second tuner for searching for another transmitter having other TMC data. Furthermore, a navigation device of an appropriate design is provided.

Method for operating a navigation device and a corresponding navigation device

A method of optimizing the reception of acoustic signals and an electric device, in particular, a telecommunications terminal, are described for interference-free reception of acoustic signals. At least two microphones can be connected to the electric device. The microphones convert acoustic signals received into electric signals. In addition, at least one adding element is provided to superimpose the electric signals of connected microphones with at least one phase delay element being provided to delay the phase of an electric signal before it is superimposed. The phase lag of the minimum of one phase delay element is selected so that the amplitude of the superimposed signal is in a predetermined range as a function of the location of the connected microphones for at least one predetermined location ( ) when a sound source ( ) delivers acoustic signals to the minimum of one predetermined location.

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Diekholzen, Germany

Rainer Cornelius