8. A device according to claim 7 , comprising a fuzzy logic for changing at least part of the sequence of features taking into account the similarity and sequence of features with combinations fo features stored in the first memory, the fuzzy logic having an output side connected to the second level of the neural network.
7. A device for detecting a phonetic sequence of sounds, said device comprising: an input device for inputting speech, a first memory containing lexical, semantic and phonetic information, a second memory containing permissible command statements, a neural network that accepts the phonetic sequence input in the input device, the neural network having a first level that forms a sequence of features from the phonetic sequence, taking into account the information in the first memory, and also having a second level that, using the information from the first memory, forms combinations of features having a defined meaningful content, a comparison device for comparing the sequence of features formed by the first level of the neural network with the combinations of features formed by the second level of the neural network, an evaluation device for evaluating contradictions between posited combinations of features with the sequence of features, a device that, depending on the result of the evaluation, causes the first level of the neural network to form a new sequence of features, and an output device for displaying the meaningful content of the least contradictory combination of features or for performing a command associated with the meaningful content of the least contradictory combination of features.