12. A communication device as claimed in claim 11 , wherein said speech recognition entity simultaneously uses speaker-dependent and speaker-independent vocabularies.
11. A communication device, comprising: a microphone recording a speech signal, including a speech command, of a speaker; a processor processing the speech signal by breaking down the speech signal into time frames, characterizing the speech signal in each captured time frame by forming a corresponding feature vector and forming a language-independent feature vector sequence from at least one feature vector; a storage unit storing the language-independent feature vector sequence obtained from the speech signal; and a speech recognition entity, coupled to the microphone, configured for at least speaker-dependent speech recognition by assigning the language-independent feature vector sequence to a language-dependent sequence of model vectors in a first language resource which includes a multiplicity of language-dependent model vectors, storing first assignment information which specifies assignment of the language-independent feature vector sequence to the language-dependent sequence of model vectors, recognizing the speech command which is assigned to the language-dependent sequence of model vectors, selecting a second language resource different from the first language resource, assigning the language-independent feature vector sequence previously stored to a language-dependent model vector sequence in the second language resource, and storing second assignment information corresponding thereto.