AUTOMATIC SOURCE CONCENTRATOR FOR MULTIMEDIA SYSTEM

摘要

The invention relates to a concentrator for coupling a plurality of digital or analog sources to an audio/video reading system capable of reading one of said sources. Each of the available sources is associated with a source identifier and an identifier for indicating an activated or deactivated state after a user's action on a source. A register (42) stores an identifier of the current source being read, while a LIFO stack with multiple levels (44) stores an ordered list of identifiers of other sources in reading standby. Upon the activation of a new source, an automatic means replaces the register content with the identifier of the new source in order to replace the current source with the new source so that the system can read it, and simultaneously adds to the stack the identifier of the current source. The reverse operation is carried out upon a deactivation of the current source in order to replace the current by the last source contained in the stack and to allow the system to read the same.