Abstract: A method and an apparatus for managing signal-processing resources of a multimedia platform that is designed for applying signal-processing operations to multimedia signals defines multimedia functions each capable of monitoring the operation of a set of multimedia platform signal-processing resources, puts them in contact, adapts the contents of the signal-processing resource set depending on the multimedia signal to be processed, and uses the multimedia functions to apply the signal-processing operations to the multimedia signals.

Abstract: A multimedia processing system architecture performs a plurality of multimedia tasks on multimedia data using a plurality of multimedia processing blocks, at least one communication bus to carry the flow of multimedia data between the multimedia processing blocks. An application interface manages the multimedia processing blocks. For each multimedia task, the application interface creates a subset of multimedia processing blocks to be assembled in order to run the multimedia task. In this architecture, each multimedia processing block comprises at least one input interface to connect it in receive mode to a communication bus and/or at least one output interface to connect it in send mode to a communication bus.

Abstract: A method and an apparatus for managing signal-processing resources of a multimedia platform that is designed for applying signal-processing operations to multimedia signals defines multimedia functions each capable of monitoring the operation of a set of multimedia platform signal-processing resources, puts them in contact, adapts the contents of the signal-processing resource set depending on the multimedia signal to be processed, and uses the multimedia functions to apply the signal-processing operations to the multimedia signals.

Abstract: There is proposed the design of an absorber with the lowest reflection coefficient, especially between 30 and 150 Mhz where most of actual anechoic chambers exhibit problems. The absorber with optimized low frequency reflection comprises a a twisted pyramid having a length 11 and permittivity coefficients e1' and e1", a first layer adjacent the base of the pyramid having a width 12, and permittivity coefficients e2' and e2", and a second layer adjacent the first layer having a width 13, and permittivity coefficients e3' and e3", with 11 equal to 2.20 m (+/- 1 cm), 12 equal to 0.188 m (+/- 1 cm), 13 equal to 0.302 m (+/- 1 cm), ande1'=10 E (-0.370 LogF+1.005)(+/- 10%)e1"=-10 E (-0.484 LogF+1.012)(+/- 10%)e2'=10 E (-0.353 LogF+1.317)(+/- 10%)e2"=-10 E (-0.222 LogF+0.789)(+/- 10%)e'=10 E (-0.316 LogF+1.785)(+/- 10%)e"=-10 E (-0.598 LogF+2.347)(+/- 10%)in the range 30-150 Mhz.