Abstract: The present invention relates to a bidirectional data communication method for a bidirectional data communication system (100), in particular an embedded bidirectional data communication system (100), comprising: at least one first communicating device (200a) configured to implement a single-pair Ethernet protocol and one second communicating device (200b) configured to implement a single-pair Ethernet protocol and comprising a second packet management module (220b) connected to a first physical link management module (231b) and to a second physical link managment module.

Abstract: A central communication unit (13), comprising: transmitter means arranged to transmit a single global downlink frame (17) addressed to all of the subscriber communication units, the global downlink frame comprising a plurality of data packets, each addressed to a respective one of the subscriber communication units, the global downlink frame supplying a common reference time so that, after receiving the global downlink frame (17), each subscriber communication unit can start transmitting an uplink frame (18) at the end of a waiting interval starting at the common reference time and having a duration equal to a respective waiting duration that is associated with said subscriber communication unit; and receiver means arranged to receive in succession the uplink frames (18) transmitted by each of the subscriber communication units.

Abstract: The invention relates to a communication network for an aircraft comprising at least one processing member and a first switch which is connected to the first processing member in order to provide data exchange within the first processing member and/or between the first processing member and at least one user terminal remote from the first processing member and connected to the first switch. According to the invention, the first switch comprises local means for observing logical communication channels of the first switch, and the first processing member includes means for controlling said observation means.

Abstract: The invention relates to a method for communicating data between communication equipments, where the first communication equipment (EqptN) is put into the emission mode (Xmit) for the frame (TrN) containing its identification (D_PID), while each second communication equipment (Eqpt1, EqptN+1, EqptN+x) is put into the receiving mode (Rcv), then the equipment (EqptN) is put into the receiving mode (Rcv), each equipment (Eqpt1, EqptN+1, EqptN+x) prescribes its local emission window (Ftle1, FtleN+1, FtleN+x), which is associated with its identification, during which it is put into the emission mode (Xmit) for its frame, a time of beginning (IDF1, IDFN+1, IDFN+X) of the window being a determined function, increasing with respect to a difference equal to its identification from which the identification (D_PID) is subtracted, each equipment is put into the emission mode, during which it emits its frame containing its identification during its window starting at the beginning time.

Abstract: A method and a system for transmitting data in a carrier sense multiple access wireless network wherein a plurality of data transmission devices send respectively at least one data frame at different moments from each other. Each transmission device, when it is initialised: loads the final value of a first, second and third counter, triggers the second counter as from its initial value, triggers, when the second counter has arrived at its final value, the first, triggers, when the first counter has arrived at its final value, the third counter, which is reinitialised to its initial value and retriggered whenever the presence of data is detected on the radio medium, transfers at least one data frame when the third counter has arrived at its final value.

Abstract: The invention relates to a computing unit, a switch connected to the computing unit, a user terminal connected to the switch in such a way that the computing unit, the switch and the user terminal form a communication system with a central architecture, and at least one communication system with a distributed architecture that is connected to the switch. The switch is designed to be used as an intermediate system for the communication system with the central architecture as well as for the communication system with the distributed architecture.

Abstract: A central communication unit (13), comprising: transmitter means arranged to transmit a single global downlink frame (17) addressed to all of the subscriber communication units, the global downlink frame comprising a plurality of data packets, each addressed to a respective one of the subscriber communication units, the global downlink frame supplying a common reference time so that, after receiving the global downlink frame (17), each subscriber communication unit can start transmitting an uplink frame (18) at the end of a waiting interval starting at the common reference time and having a duration equal to a respective waiting duration that is associated with said subscriber communication unit; and receiver means arranged to receive in succession the uplink frames (18) transmitted by each of the subscriber communication units.

Abstract: Systems and methods are provided for controlling and monitoring a peripheral in an aircraft that includes a master module connected to each slave module. Each slave module is disposed around a controlled peripheral and is connected to a port of the master module by a bidirectional link. The master module sends data frames comprising the value of a counter. Each slave module reads the value of the counter included in the data frame received, updates a counter with the value read, checks whether the value of the updated counter corresponds to a time-period index associated with the slave module and if so transfers a data frame to the master module. The master module selects, from a table comprising time period indices and identifiers, the port connecting the master module to the slave module the identifier of which is associated with the time-period index that corresponds to the counter's value.

Abstract: Systems and methods are provided for controlling and monitoring a peripheral in an aircraft that includes a master module connected to each slave module. Each slave module is disposed around a controlled peripheral and is connected to a port of the master module by a bidirectional link. The master module sends data frames comprising the value of a counter. Each slave module reads the value of the counter included in the data frame received, updates a counter with the value read, checks whether the value of the updated counter corresponds to a time-period index associated with the slave module and if so transfers a data frame to the master module. The master module selects, from a table comprising time period indices and identifiers, the port connecting the master module to the slave module the identifier of which is associated with the time-period index that corresponds to the counter's value.

Abstract: The invention provides a communications network comprising at least two modules and a common switch connected firstly to the two modules and secondly to various different user terminals, the switch having as many configurations as there are user terminals and modules connected to the switch, each user terminal and each module being associated with a particular dedicated configuration.

Abstract: The invention provides a communications network comprising at least two modules and a common switch connected firstly to the two modules and secondly to various different user terminals, the switch having as many configurations as there are user terminals and modules connected to the switch, each user terminal and each module being associated with a particular dedicated configuration.

Abstract: The invention relates to a communication network for an aircraft comprising at least one processing member and a first switch which is connected to the first processing member in order to provide data exchange within the first processing member and/or between the first processing member and at least one user terminal remote from the first processing member and connected to the first switch. According to the invention, the first switch comprises local means for observing logical communication channels of the first switch, and the first processing member includes means for controlling said observation means.

Abstract: The invention relates to a message exchange controller structure (1) comprising means (3) forming a message exchange controller, associated with a member (4) forming a storage/exchange buffer, a member (5) forming interfaces for multiple connections to several message production/consumption units, and a member (6) forming interfaces for connecting to several external buses; which is characterized in that the means exchange controller-forming means (3) are able to recover redundant messages from external buses, store those messages in the storage/exchange buffer-forming member (4), recover those messages from the storage/exchange buffer-forming member (4), and process those messages so as to generate a resultant message (MF), to send it to at least one consumption unit.

Abstract: The invention relates to a computing unit, a switch connected to the computing unit, a user terminal connected to the switch in such a way that the computing unit, the switch and the user terminal form a communication system with a central architecture, and at least one communication system with a distributed architecture that is connected to the switch. The switch is designed to be used as an intermediate system for the communication system with the central architecture as well as for the communication system with the distributed architecture.

Abstract: A data transmission architecture, in particular for use in on-board avionics is disclosed. The data transmission architecture includes at least one main data transmission network with integrated functional nodes for connecting a plurality of peripheral data transmission networks to the main network, in order to provide data transmission between the networks. The data transmission architecture also includes a direct connection of peripheral networks to one another so as to allow the transmission of data directly between the peripheral networks without passing through the main network. The main network includes a plurality of associated sub-networks.

Abstract: A hierarchical distributed architecture including services and applications able to manage and/or process digital data by using the services. The architecture includes local service providers, each local provider being connected to one or several applications, and remote service providers, each remote provider being connected to one or several services, each application able to communicate with one or several services through a first hierarchical level including a local provider, and a second hierarchical level including at least one remote provider and each service is able to communicate with one or several applications through a first hierarchical level including a remote provider and a second hierarchical level including at least one local provider.

Abstract: This multi-core processor system for processing information, of the kind including a data exchange engine (2) associated with multiple users (3) of shared resources (4), is characterized in that it includes means for controlling data exchanges in the processor, associated with each user (3), with the exchange engine (2) and with the shared resources (4) and defining at the processor, a data exchange law determined according to a defined space-time mapping, a giving the possibility of obtaining predictable operating performances of this processor.

Abstract: A functional node for an information transmission network and corresponding network are disclosed. In one aspect, the functional node includes at least one module for distributing messages between input and output ports. The distribution module includes at least one combination of at least three ports, including a first input port connected to a second output port by a first capability for unconditionally propagating messages, not depending on the messages. The first and/or second ports are connected to a third port by a second capability for conditionally propagating messages, depending on the messages.

Abstract: This transmission network for transmitting information, of the type comprising at least two associated loops (2, 3) for transmitting information, in each of which functional nodes (4, 5) are integrated, each comprising at least one distribution module for distributing messages (6, 7) between the input and output ports of the node and at least one network interface module (8, 9) associated with this distribution module, is characterized in that the network interface modules (8, 9) of at least certain of the nodes of at least one of the loops (2, 3) are connected to the distribution modules (6, 7) for distributing the nodes of at least one other loop.

Abstract: A generic and multi-role controller structure for data and communication exchanges is disclosed. In one aspect, the structure assumes the form of a single component and includes a capability forming a generic data and communication exchange controller, associated with at least: a capability forming a data storage/exchange buffer, a capability forming multiple connection interfaces to several data production/consumption units, one connection interface being associated with one data production/consumption unit, a capability forming multiple connection interfaces with several external data communication buses, and one connection interface being associated with one external data communication bus.