Each of a plurality of control devices includes: an upper communication part which transmits/receives first data to/from other control devices via a first network; and a lower communication part which transmits/receives second data to/from one or more equipment via a second network. The upper communication part has a first timer time-synchronized with each other among the plurality of control devices. The lower communication part determines, based on the time of the first timer, a timing to start processing for transmitting the second data to the one or more equipment.

A synchronous computer-controlled communications network is provided that includes an Ethernet network switch; one or more avionics computers communicatively coupled in the synchronous computer-controlled communications network, and one or more end systems communicatively coupled in the synchronous computer-controlled communications network, wherein each of the one or more end systems, wherein the synchronous computer-controlled communications network is synchronized by a synchronization schedule that provides a common start time of a Major Time Frame or the start of a particular partition of the one or more avionics computers based on a user configuration, wherein a first avionics computer of the one or more avionics computers is configured to transmit an Event Synchronous Frame (ESF) to the Ethernet switch, wherein the ESF indicates that the first avionics computer is ready to integrate in a configured synchronous computer-controlled communications network.

A communications network having a master subscriber M and at least one slave subscriber. At least one distribution node CU1, CU2, CU3, CU4 is provided which has a plurality of input/output interfaces, each of which is connected to a network segment, the master subscriber M arranged in a first network segment M1 and the slave subscriber arranged in a second network segment S1, S2, S3, S4, S5. Data is exchanged between the master subscriber M and the slave subscriber in the form of telegrams initiated by the master subscriber. The telegrams to be sent from the slave subscriber to the master subscriber are each assigned control data containing a forwarding time information when the corresponding telegram is to be output from the distribution node via the input/output interface in the direction of the first network segment comprising the master subscriber, the forwarding time information determined by the master subscriber M.

A semiconductor device capable of improving the efficiencies of communication systems is provided. The semiconductor device comprises: an open period in which reception of data or transmission is allowed; a clock generation circuit defining a close period in which transmission of data and reception are not allowed; and a TSN controller connected to the clock generation circuit and performing transmission of data or reception, wherein the TSN controller performs semiconductor device or reception at another time than open period.

A switch device for connecting a plurality of field devices to one single master port of a master device, the master device providing a gateway between the field devices and an upper level network and being configured to control a communication between the upper level network and the field devices, the switch device comprising: a physical master-side port for connecting the switch device to the single master port and for establishing a master communication channel between the same; and a plurality of physical field device-side ports for connecting the switch device to the field devices and for establishing a plurality of field device communication channels between the respective field devices and the switch device; wherein the switch device is configured to transfer data between the master device (3) and the field devices through the master communication channel and the field device communication channels using a single communication protocol for an automation network.

In some aspects, the present disclosure provides a method for communicating audio data. In one example, the method includes determining whether a condition for each transport opportunity on an audio channel is met based on an audio sample rate and a channel rate of the audio channel. For each transport opportunity, upon determining that the condition is met for the transport opportunity, the method also includes transmitting audio sample data over the transport opportunity or receiving audio sample data at the transport opportunity.

A method carried out in a system, the system comprising at least a diagnosis plug-in device (1) connected to the diagnosis plug (8) of a vehicle, a host server (2), one or more on-board ECUs (3), the method comprising the following steps: /a/ detect a Bus Active condition, either via an electrical pin on the diagnosis plug or via an analysis of activity level on at least one Diagnosis bus accessible at the diagnosis plug, /b/ cause the diagnosis plug-in device to listen only on the at least one Diagnosis bus after the Bus Active condition is detected, /c/ determine a write enable condition, according to evolution of bus load level on the at least one diagnosis bus and/or after a certain time elapsed since Bus Active condition was true, /e/ whenever the write enable condition becomes true, carry out the request/answer services to write requests on the diagnosis bus and retrieve, in the corresponding answers, various data from the board ECUs (3), to be decoded and forwarded to a client fleet management system, /e1/ determining, a cyclic pattern of messages circulating on the bus, with at least busy instants (IB) and quiet instants (IQ), /e2/ place write requests on the diagnosis bus at quiet instants (IQ).

Each of a plurality of control devices includes: an upper communication part which transmits/receives first data to/from other control devices via a first network; and a lower communication part which transmits/receives second data to/from one or more equipment via a second network. The upper communication part has a first timer time-synchronized with each other among the plurality of control devices. The lower communication part determines, based on the time of the first timer, a timing to start processing for transmitting the second data to the one or more equipment.

Embodiments of a device and method are disclosed. In an embodiment, a physical layer (PHY) device that is compatible with the IEEE 802.3 standard is disclosed. The PHY device includes a physical coding sublayer transmitter (PCS-TX), a physical medium attachment transmitter (PMA-TX), a physical coding sublayer receiver (PCS-RX), a physical medium attachment receiver (PMA-RX), and a media access priority manager configured to initiate transmission of an indication of a priority of a frame that is to be transmitted onto a shared media, where the indication of the priority of the frame includes more than three bits of frame priority information.

A device and a method for a transmitter/receiver device of a bus system are provided. The device has a measuring unit for measuring a minimum recessive bit time that occurs during an operation of the bus system in a message received by the device from a bus of the bus system, a voltage state of the message having been actively driven by a transmitter/receiver device of one of at least two user stations of the bus system; a calculation unit for calculating a power-on period on the basis of the minimum recessive bit time supplied by the measuring unit, the power-on period being a time period for which an oscillation reduction unit is to be switched on, which is used for reducing oscillations on the bus that occur after a transition between different voltage states of a bus signal transmitted on the bus.