Abstract: A method for determining a positioning of a subject motor vehicle in a traffic lane of a highway is provided, including: acquiring a number of traffic lanes of the highway; acquiring an image of the highway showing at least a lateral part of the highway; acquiring a datum relating to a direction of travel of the subject motor vehicle on the highway; receiving by the subject motor vehicle one message from another motor vehicle, the message including a first information item relating to a positioning of the other motor vehicle, and a second information item relating to a direction of travel of the other motor vehicle; and deducting the positioning of the subject motor vehicle in one of the traffic lanes, as a function of the number of traffic lanes, the datum, the acquired image, the first and second information item.

Abstract: A method for determining a positioning of a subject motor vehicle in a traffic lane of a highway is provided, including: acquiring a number of traffic lanes of the highway; acquiring an image of the highway showing at least a lateral part of the highway; acquiring a datum relating to a direction of travel of the subject motor vehicle on the highway; receiving by the subject motor vehicle one message from another motor vehicle, the message including a first information item relating to a positioning of the other motor vehicle, and a second information item relating to a direction of travel of the other motor vehicle; and deducting the positioning of the subject motor vehicle in one of the traffic lanes, as a function of the number of traffic lanes, the datum, the acquired image, the first and second information item.

Abstract: A method of determining positioning of a subject automobile vehicle in a traffic corridor of a traffic lane, including: a) acquiring a number of traffic corridors of the traffic lane, b) acquiring an image of the traffic lane on which there appears at least one lateral part of the traffic lane, c) acquiring a datum relating to a direction of traffic flow of the subject automobile vehicle on the traffic lane, and d) deducing the positioning of the subject automobile vehicle in one of the traffic corridors of the traffic lane, as a function of the number of traffic corridors, the datum relating to the direction of traffic flow, and the image acquired.

Abstract: Device for determination-type filtering of messages at the input of a station is connected to a communication network. A preferred embodiment of the device comprises a read/write memory which can be addressed by its contents (CA-EQ) and which comprises "n" rows for patterns, "n-1" of which can be modified under the control of the upper layer of the architecture; the free rows are managed by means of a FIFO-type buffer having "n-1" positions.

Abstract: A decentralized local communication network comprising a plurality of stations. A right to transmit data on a traffic channel, to which each station is connected, is allocated by means of a token. At least one priority level indicating a frequency of allocation of the token assigned to each station, the stations having the same priority level form part of a same group and are assigned to a logic loop for the circulation of the token. The network comprises at least two logic loops. With each priority level there is associated a predetermined time interval which corresponds to a period of time expiring between two successive allocations of the token to a station of the group having said associated priority level. Upon expiration of one of said time intervals, the token passes to the logic loop which is associated to the priority level for which said time interval was expirated and starts to circulate in that logic loop.

Abstract: In a data transmission device having at least one transmitting station and at least one receiving station the same message is transmitted with an integer number of copies. This number may vary from one message to another. The number is predetermined by the transmitting station as a function of the reliability of the network and the functional importance of the message; thus, the same sequencing of the general events is presented to all stations without any acknowledge process being required.

Abstract: The method for use in a local network comprising a pilot station and local stations. Each station of the network is successively allocated the right to transmit a message on the transmission medium on which the messages are transported. This right to transmit is allocated to a station when its own address is indicated by its address indicator. The transmission of a message by the station having the right to transmit increments the address indicator of all stations, thus allocating the right to transmit to a next station. If a station remains silent when it has the right to transmit, the pilot station substitutes for the silent station. The method also concerns the detection of errors and the recuperation of incorrect messages. Each station of the system has a table which makes the state of the other local stations known at any instant.

Abstract: A distributed data processing system including a general, communications network, and a plurality of local systems which each include a central processing unit, associated memory, and at least one peripheral device. The control of the intercommunication is effected by respective systems intercommunication processors, each attaching one local system to the network. Each SIP has a programmed processor, a local and a network interface, and a bidirectional buffer. The system intercommunications processor will provide for address and code parameter translation, resource requesting and allocating access granting and protecting of the local resources and information objects, while sharing resources among plural requesters. Also failure management and control panel simulation is effected by the systems intercommunications processor.

Abstract: A data processing system, comprising several distributed processing units which are connected to a remote central monitor and test station in which the state of each distributed processing unit is monitored by the transmission of test and diagnostic signals. Each processing unit comprises a simulation unit which comprises a microprocessor and test sequences for decoding and simulating these commands and, after their execution by the central unit of the processing unit, for transmitting the results to the central station for analysis. Moreover, the simulation unit is capable of detecting errors in the simulation and the execution of the commands and of supplying the central station with a warning.

Abstract: A distributed data processing system having several local systems (LS) between which communication is provided via clearly defined functional layers. A functional coordination layer managed by systems intercommunication processors (SIP) is responsible for the functions of coordination, communication, control, initialization and simulation relative to the LSs. A functional communication layer managed by communication modules (CM) is responsible for the communication protocols between the LSs. A functional transport layer including transmission modules (TM), a looped optical bus and a looping unit (LIG) element. A description of each LS is contained in its SIP in the form of descriptive tables facilitating the use of the resources of the global system by any LS via parameter translations, local to global to local, each communication between LSs being performed in the form of a transaction having separate interrogation, auto-selection, presentation, processing and result return phases.

Abstract: A distributed data processing system including a general, passive, communications network, and a plurality of local systems which each have a central processing unit, associated memory, and at least one peripheral device. The control of the intercommunication is effected by respective system intercommunication processors, each interfacing one local system to the network. Each systems intercommunications processor is attached to the network by means of a respective communication module. A communication module has sequences for controlling in a first sequence of steps an addressed logical link from a source local system to a single destination local system and in a second sequence of steps controlling a broadcast logical link from a source local system to one or more destination local systems.