Abstract: Remote control code filtering techniques are disclosed that are suitable for use in a remote control code relaying system. A portion of a received remote control code is compared with corresponding portions of stored remote control codes. The received remote control code can be filtered based on the comparison. The filtering can comprise outputting the received remote control code or a portion thereof, discarding the received remote control code, or adding a new remote control code to the stored remote control codes. The remote control code can be received from a network or from a hardware interface (e.g., which converts an electromagnetic remote control signal to the remote control code). The received remote control code can be output to a network or to a hardware interface for subsequent transmission of an electromagnetic remote control signal. Filtering can occur before or after the network.

Abstract: For operating a multi-loudspeaker configuration which is audio-driven from a multi-audio-channel source system, an appropriate audio channel from the multi-audio-channel source is assigned to each loudspeaker. The loudspeakers are driven as active powered units. In particular, the method provides an overall communication structure for carrying audio data to the loudspeakers. The method locally ascertains the relative positions of various loudspeakers in the configuration. It assigns an appropriate indication to a particular loudspeaker regarding its relative position. In the particular loudspeaker, it recognizes an associated indication. It uses a recognized indication to select an audio channel appropriate to the position of the loudspeaker in question in the multi-loudspeaker configuration.