Abstract: A data communications system including a local beacon (10; 9, 9′), on the one side being programmable and/or communicating with controlling and/or information communicating infrastructure means (16), for example a central service provider or the Internet and/or with one or more further local beacons and which, on the other side, contains for wireless communication with one or more end devices (17) located in its vicinity a transceiver combination or in special cases a transmitter only and which is located in or in place of a electric lighting equipment (1) is characterized in accordance with the invention in that the local beacon is provided with a smart cache and/or processing functionality for the data to be communicated wireless. The data communications system in accordance with the invention can be put to use for both communication and navigation by end device users.

Abstract: In the radio transmission method according to the invention, which operates with a mixed frequency and time division multiplex method FDMA/TDMA, in which a relatively broad frequency band is divided according to the FDMA method into a plurality of carrier frequency ranges, namely the so-called main channels, and a plurality of time slots, namely the so-called sub-channels, distributed in a frame structure, are formed on each carrier frequency level according to the TDMA method, a grouping, that is to say a so-called cluster, of subscriber stations is assigned a limited number of main channels. A main channel signal is divided into one or more sub-channel signals which are associated with a cluster and which are transmitted using the TDMA method.

Abstract: An apparatus and a method are disclosed for loosening compacted fibrous material in a container whereby the fibrous material will flow freely out through an outlet located in the bottom of the container. Agitation means are provided on the sidewalls of the container adjacent to the outlet to create and maintain an open space adjacent the outlet. A flexible, tubular member is placed in said container so that a free portion having an open end extends into the open space a sufficient distance that when a pressurized fluid is passed through the flexible member and out of its open end it causes whip-like movements of the free portion within the open space causing the pressurized fluid to be directed upwardly towards the fibrous material compacted overhead to loosen and dislodge the fibrous material.