acousto - electrical device has two dimensions for the memorisation and the processing of information

摘要

P the invention has for its object a device acousto - electrical for storing and processing the information, in analog form, at any point of a surface. / p & & p & it comprises: a substrate piezoelectric 1, with four transducers electromechanical t.. T emitting of the elastic waves surface along two directions normal ox, oy, a semi - conductor 2, having a network of diodes place by screws - to - screw piezoelectric, and two electrodes 3, 4 placed respectively on the extreme faces of the two substrates. The specification of a signal st is applied between the electrodes is performed by means of two addressing auxiliary elastic waves, the interaction is not linear of these three signals supplying a signal to be spatially periodic and independent of the time which is memorized by the diodes. The signal memorized is subsequently treated by means of elastic waves reading not linearly which interact with it in order to give a simple reading of the initial signal st or a treatment of the latter, in particular its transformed. / p