Abstract: An apparatus for a motor vehicle includes a first control device, a plurality of second control devices, and a bus system that links the control devices. Wherewith an activity of the control devices is dependent on communication between the control devices which is transmitted via the bus system. The apparatus is distinguished in that the first control device is configured such as to deny communication to (or via) the bus system under prescribed conditions, and the second control devices are configured to cancel (interrupt) a communication to (or via) the bus system if the first control device denies the communication. Additionally, a method is disclosed wherein the apparatus is operated in the described manner.

Abstract: A method for controlling the transmission of information between components, preferably in a motor vehicle, these components being either data sources or data sinks, wherein a double cascade separates the data transmission of the service components and from that of the music components. The data of the two data cascades can be mixed by means provided in the audio/video sink.

Abstract: A method for controlling the transmission of information between electronic components in a motor vehicle, which components can be either data sources or data sinks, in which a cascade design is used to facilitate the transmission of information. By separating the control signal from the actual streams of data, a flexible, chain type of structure is obtained.