Abstract: An apparatus for the diffusion of voice messages relating to sites, such as museums, parks, places of public interest etc., comprising one or more fixed transmitter units each provided with respective electronic memorization members, in which a corresponding voice message is memorized and each suitable to transmit the respective voice message, wherein said respective voice message refers to the site in which the corresponding fixed transmitter unit is disposed; and one or more mobile receiver units each suitable to receive at least a voice message from a respective fixed transmitter unit. Each fixed transmitter unit is pre-disposed so that the corresponding voice message is memorized in the respective electronic memorization members in compressed form. Each mobile receiver unit is provided with decompression members able to decompress the voice message received so as to obtain a message reproducible in a comprehensible and intelligible manner.

Abstract: Multilayer expansion card for connecting an apparatus or device to an electronic apparatus, particularly for association to a mother card of a Personal Computer. The card comprises a first part, intended principally for connection, having a thickness coherent with the requirements of size for connection to the standard slots of the mother card, and a second part, intended principally for the management of the card functions and for processing, and hence the electronics, having a greater thickness with respect to the first part in order to contain a correspondingly greater number of layers intended for the management of a high density of electronic-type signals.

Abstract: Modular electronic card to support and manage a plurality of calculation nodes and their interconnections with a three-dimensional topology, wherein each node includes a card carrying at least a processing unit, a memory battery and connection members with the modular card. The modular electronic card has a spatial density of the calculation nodes equal, on the surface, to at least 0.8 nodes per square decimeter, given a node that has at least 108 differential connections divided into 12 independent groups, two for each of the fundamental directions (x, y, z) of the 3D topology.

Abstract: Connection system to connect a plurality of communication channels to an electronic apparatus such as a personal computer, a PC-cluster or suchlike, and expansion card to manage the communication channels on the electronic apparatus. The electronic apparatus has a chassis. The system consists of a first printed circuit, which supports first connectors for managing a first pair of communication channels on the electronic apparatus and connection members for assembling at least a second printed circuit. The second printed circuit supports in turn second connectors for managing a second pair of communication channels on the electronic apparatus. The first and the second printed circuit develop at least partly outside the chassis.

Abstract: Multilayer expansion card for connecting an apparatus or device to an electronic apparatus, particularly for association to a mother card (15) of a Personal Computer. The card comprises a first part (12), intended principally for connection, having a thickness coherent with the requirements of size for connection to the standard slots (14) of the mother card (15), and a second part (13), intended principally for the management of the card functions and for processing, and hence the electronics, having a greater thickness with respect to the first part (12) in order to contain a correspondingly greater number of layers (11, 16) intended for the management of a high density of electronic-type signals.