Abstract: The invention is related to antenna systems and transceiving equipment for network portable computers. The antenna system comprises a flat substrate (2), carrying at least two directional flat antennas oriented in a fan-like fashion (3), and a commutation switch (6) to control the directional pattern of the antenna system. The commutation switch is made so as to make it possible to switch on to one or two or more antennas simultaneously. The transceiving device comprises the antenna system (1), a reception/transmission switch (12), a transmitter (14), a receiver (16), an antenna system operation control unit (18) to control the operation of the antenna system in omnidirectional mode, directional scanning mode or stationary directional mode, and a controller (17). It can also be supplemented with a signal quality evaluation unit (20) and a signal identification unit (21). The network portable computer incorporates the transceiving device, the antenna system for which is fixed to the computer case by a hinge.

Abstract: A wireless communications network includes a plurality of wireless devices equipped with direction- agile antenna systems to allow the wireless devices to establish and maintain wireless data links with each other.

Abstract: Refers to networks that are comprised of wire and wireless transceivers connected by wire lines to form a hybrid network. The method implies: transmission of a data packet by one transceivers of the network; reception of an initial fragment of the said packet by a router and storage of the said fragment in a buffer storage; transmission of the stored fragment by the router to an addressee of the network. Reception and storage of a successive fragment of the packet are performed simultaneously with transmission. Then cycles of transmission of the stored fragment and simultaneous reception of a successive fragment are repeated right up to the last fragment, whereupon the last stored fragment is transmitted by the router. The router includes: a wire communication transceiver; a wireless communication transceiver with an antenna system; a processor designed for processing data packets to transmit and receive them by radio channel and wire line; a storage to store a fragment of the data packet.

Abstract: The invention claimed here refers to electrical engineering and may be used to convert mechanical energy of reciprocating motion to electrical energy and vice versa. The machine has a stator with windings and a moving body installed in such a way that a possibility of reciprocating motion is provided. The stator has at least one magnetic part, each of which has at least one permanent magnet and has at least three unidirectional projections that form magnetic poles of alternating polarity. The cavities are formed between the projections, with stator windings placed in said cavities. The moving body has at least one part made of magnetically soft material. The stator and the moving body are positioned so that the moving body part made of magnetically soft material, in the course of the motion of the moving is (at least partially) within the magnetic fields of the poles of the magnetic part of the stator.