1. A method of adapting individual outputs of a plurality of output elements, comprising: receiving, at each of a plurality of input elements each having input means, a same reference signal from a first device external to a data processing system comprising the output elements and the input elements; determining, for each one of said plurality of input elements, at least one input characteristic of said same reference signal as received by said input element, thereby forming a set of input characteristics of said same reference signal; determining, from the set of input characteristics of said same reference signal as received by said plurality of input elements, a set of output characteristics; sending a data signal to each of said plurality of output elements; at each of said plurality of output elements, modifying said data signal using at least one output characteristic of said set of output characteristics, thereby obtaining a modified data signal for each one of said output elements, the input and output characteristics being related to at least one of timing, phase angle, and direction; and at each of said plurality of output elements, sending said modified data signal for each one of said output elements to a second device to be focused on, said second device being external to the data processing system and located at substantially a same location as said first device, said modifying said data signal adapting the individual outputs to constructively interfere at said second device to be focused on.