Abstract: The communication method concerns communication stations adapted to communicate with each other when a base station supplies a synchronisation signal to mobile stations synchronising on this signal. This method includes a request operation (901) during which a first base station (300) transmits, to a mobile station (301), a request for the storage in memory and transmission, by said mobile station, of a message, to a message destination communication station (302) which is not synchronised with said first base station.

Abstract: The communication method of the invention applies to communication stations adapted to communicate with each other when at least one of said communication stations supplies a control signal, said station then functioning in “base station” mode and the stations not supplying a control signal then functioning in “mobile station” mode. The method of the invention includes, for at least one communication between two communication stations functioning in mobile station mode, in connection with a first base station: an operation of determining a second station, during which a communication station functioning in mobile station mode able to function in base station mode is determined, a switching request operation during which a message representing a request to switch into base station mode is sent to the second station determined during the determination operation.

Abstract: The communication method of the invention applies to communication stations adapted to communicate with each other when at least one of said communication stations supplies a control signal, said station then functioning in “base station” mode and the stations not supplying a control signal then functioning in “mobile station” mode. The method of the invention includes, for at least one communication between two communication stations functioning in mobile station mode, in connection with a first base station: an operation of determining a second station, during which a communication station functioning in mobile station mode able to function in base station mode is determined, a switching request operation during which a message representing a request to switch into base station mode is sent to the second station determined during the determination operation.

Abstract: The communication method of the invention applies to communication stations adapted to communicate with each other when at least one of said communication stations supplies a control signal, said station then functioning in “base station” mode and the stations not supplying a control signal then functioning in “mobile station” mode. It includes, performed by at least one communication station functioning initially in base station mode: an operation of determining the presence of a station functioning in mobile station mode, and when, during the presence determination operation it is determined that no station is functioning in mobile station mode, an operation of switching into mobile station mode, during which said station goes into mobile station node.

Abstract: For coding and decoding data, the data to be coded and the decoded data being stored in a memory (1), a single data coding and decoding means (4) is used. The coding and decoding means is initialised in coding mode, and the passage of data to be coded from the memory (1) to the coding and decoding means (4) is controlled, or the coding and decoding means is initialised in decoding mode, and the input of coded data into the coding and decoding means (4) and the passage of decoded data from the coding and decoding means to the memory (1) are controlled.

Abstract: The device (220) of the invention for communicating at a distance has a signal transmission/reception means (223, 224, 102) which has a moving part (102) and a reception device (102, 223, 224), said moving part modifying the electromagnetic environment of said reception device. Preferentially, said moving part is an antenna (102). In particular, said moving part can be fixed to a moving component of an item of office equipment (100) using data received by said communication device.

Abstract: The device according to the invention shares a transmission medium between communication devices by allocation of authorizations to send on the medium, to each communication device. It has: a memory (65) for storing a table (64) representing communication devices (7) sharing the medium, each assigned a priority level (435, 438, 441, 444) for access to the medium; a device (94, 460, 462, 529, 543, 544, 545, 559A) for updating the access priority levels according to an estimated requirement for transmission on the medium by the communication devices under consideration.

Abstract: The methods for transmission of sequences or frames of data provide for retransmitting, with a central device (21), frames of data which reach it, to destination devices, by transmission of downlink frames when the destination device is a peripheral device (24), each downlink frame having systematically a service message activating a protocol controlling access to the transmission medium shared by the central device (21) and the peripheral devices (24), and possibly a frame of data. The central device (21) and at least one peripheral device (24) form a system which is particularly well suited to a local area network, notably with a wireless transmission medium.

Abstract: A digital communication converter includes: a connection unit with a communication unit from which it receives or to which it delivers data frames; and a unit for sending/receiving over a transmission medium in order to transmit, by means of the medium, data frames which are delivered to it and/or to deliver information frames which it receives by means of the medium. A transmission control unit delivers, respectively to the connection unit and the sending/receiving unit, frames which have been delivered to it respectively by the sending/receiving unit and by means of the connection unit. A memory stores an address relating to the communication unit, this address being used for operating a protocol for controlling access to the transmission medium.