Abstract: A display driver has current reference units and current-generating units. Each current reference unit generates a reference current and scaling it to form a scaled reference current. Each current-generating unit generates an output current from one scaled reference current to drive a selected light emitter (LE) of a LE matrix over a time slice allocated for driving the selected LE. Each current-generating unit has a switching circuit modulating the scaled reference current according to a switching sequence to form output current pulses to drive a LE.

Abstract: A display driver has current reference units and current-generating units. Each current reference unit generates a reference current and scaling it to form a scaled reference current. Each current-generating unit generates an output current from one scaled reference current to drive a selected light emitter (LE) of a LE matrix over a time slice allocated for driving the selected LE. Each current-generating unit has a switching circuit modulating the scaled reference current according to a switching sequence to form output current pulses to drive a LE.

Abstract: The invention concerns a selective intercommunication system comprising a plurality of mobile terminals capable of being carried by a plurality of users and comprising means for exchanging in pairs, in particular when physically proximate, and means for verifying whether all data exchanged correspond to compatibility criteria for which said terminals have been programmed. The invention is characterised in that it comprises a server capable of interfacing with the mobile terminals to transmit thereto data and programme them and to which the users can be connected via a global network, such as Internet, to configure the mobile terminals, via said server.

Abstract: A digital holography device, applicable for example to the 3D mapping of objects, is used to determine the complex amplitude of a signal wave coming from an object illuminated by a known illumination wave. For this purpose, the device includes a source for the generation of two mutually coherent waves, the object illumination wave and a reference wave, the two waves having a phase difference &phgr;i(t) that is a function of time. The device also includes a mechanism configured to induce an interference, on a detection device, between the reference wave and the signal wave coming from the object. The detection device enables a temporal sampling of the interference pattern resulting in the acquisition of a number N of interferograms, N being greater than or equal to 2.