| 摘要 |
This device is characterised in that each control element (13) is linked to the input of means (14) for generating a control code, the output of which is linked to modulation means (14a) making it possible, by spectral spreading, to disperse the energy of the control signals in frequency, and the output of which is linked to the input of means (15) for combining the output signals emanating from several code generation means and modulation means to form a multiplex signal, the output of these combination means being linked to means (16) for transmitting the multiplex signal to means (19) for distribution of this signal to several decoding means (20) each associated with an element to be controlled (21) and each including means for recognising the control code, in the multiplex signal, allocated to the corresponding element to be controlled, in order to activate the latter. <IMAGE>
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