Abstract: A receiver for receiving packet data from a transmitter, the transmitter and the method of controlling transmission. The receiver may comprise first detection means for detecting that its memory has enough space to store a data packet and flow control signal means for providing a flow control signal, preferably a first flow control signal, to the transmitter in response to said first detection means. The receiver may comprise second detection means for detecting when a first portion of a packet has been received from the transmitter and flow control signal means for providing a second flow control signal to the transmitter in response to said second detection means. The transmitter may comprise third detection means for detecting the second flow control signal sent by the receiver and packetwise transmission means arranged, responsive to the third detection means, to complete transmission of a partially transmitted packet and then to stop transmission of further packets.

Abstract: The present invention provides a method and a device for ensuring the operating state of a mobile electronic terminal device in connection with hot-swapping of a removable storage medium, wherein the mobile electronic terminal device comprises an interface for connecting with a removable storage medium and containing a directory of programs essential for the operation of said mobile electronic terminal device. The method comprises detecting if the status of said interface has changed (102), comparing (108) programs currently running on said mobile electronic terminal device with programs contained in said directory (14) of said essential programs, and terminating (110) all currently running programs which are not contained in said directory (14) of said essential programs. The inventive mobile electronic terminal device comprises an interface component for connecting with a removable storage medium, a data processing component, and a storage component.

Abstract: A method is provided for transmitting control information between a line-switching and a packet-switching communications network. A signaling connection is set up in a packet-switching network in order to transmit signaling packets which form connection-independent control information which relates to at least one service feature in a line-switching communications network so that at least one service feature of the line-switching communications network may be used in the packet-switching communications network by means of the control information independently of the connection.

Abstract: A receiver for receiving packet data from a transmitter, the transmitter and the method of controlling transmission. The receiver may comprise first detection means for detecting that its memory has enough space to store a data packet and flow control signal means for providing a flow control signal, preferably a first flow control signal, to the transmitter in response to said first detection means. The receiver may comprise second detection means for detecting when a first portion of a packet has been received from the transmitter and flow control signal means for providing a second flow control signal to the transmitter in response to said second detection means. The transmitter may comprise third detection means for detecting the second flow control signal sent by the receiver and packetwise transmission means arranged, responsive to the third detection means, to complete transmission of a partially transmitted packet and then to stop transmission of further packets.

Abstract: The present invention relates to a method for controlling the transmission and reception activities of a local radiocommunications system having a main unit (MU) and at least one slave unit (SU). In the case of this local radiocommunications system, which operates at a low power level, in order to prevent mutual interference with an associated reference system, which operates at a relatively high power level, the invention provides that a timebase for communication with the slave unit or units (SU) is defined in the main unit (MU) as a function of the timebase of the reference system (12), and that the frame length (tFr) defined on the basis of the timebase is reported to each slave unit (SU).

Abstract: A method is provided for transmitting control information between a line-switching and a packet-switching communications network.

Abstract: The description covers the identification of the position of data packets (P1, P2, . . . ) which are located in a serial received data stream and each have check data in a check field and a check sum (CRC) which is formed using the check data, the received data stream being passed in serial form through at least one comparison unit (9) which forms a new check sum (CRC′) with each received signal to be newly added and compares this new check sum with data which are looked at for the associated received check sum (CRC), and, furthermore, during the comparison, the influence of all data is eliminated which do not belong to the check data and to the check sum (CRC).