A transceiver for sending and receiving data from a controller area network (CAN) bus is disclosed. The transceiver includes a microcontroller port, a transmitter and a receiver. The transceiver is configured to receive a data frame from a microcontroller via the microcontroller port and to determine if the microcontroller is authorized to send the data frame or part of it based on a message identifier in the data frame and the outcome of the arbitration process. If the microcontroller is unauthorized to send the data, the transceiver is configured to invalidate the data frame and disconnect the microcontroller from the CAN bus for a predetermined period.

Introduced here are approaches to classifying traffic that comprises data packets. For each data packet, a classification engine implemented on a computing device can identify an appropriate class from amongst multiple classes using a lookup table implemented in a memory. The memory could be, for example, static random-access memory (SRAM) as further discussed below. Moreover, the classification engine may associate an identifier with each data packet that specifies the class into which the data packet has been assigned. For example, each data packet could have an identifier appended thereto (e.g., in the form of metadata). Then, the data packets can be placed into queues based on the identifiers. Each queue may be associated with a different identifier (and thus a different class).

A network hub device used for building a simple network configuration in an in-vehicle network system is provided. A network hub device (22) is provided in a vehicle body and is coupled to a trunk network through which a digital control signal is transmitted. A sub hub device (241, 242) performs input/output of a signal to/from an in-vehicle device provided in a partial body assembled to the vehicle body via a movable portion. The sub hub device (241, 242) is provided in the partial body and the digital control signal is transmitted/received between the sub hub device (241, 242) and the network hub device (22) via a wire harness passing through the movable portion.

A system includes an engine control configured to control a gas turbine engine and a means for wirelessly communicating with an offboard system and communicating with the engine control by establishing communication with the engine control on a first communication bus using system credential authentication, establishing communication between the engine control and a data storage system on a second communication bus, establishing wireless communication with the offboard system using system credential authentication, and providing access from the offboard system to the engine control and from the engine control to the data storage system to enable one or more updates of the data storage system by the offboard system based on service credential authentication.

A system includes an engine control configured to control a gas turbine engine and a means for wirelessly communicating with an offboard system and communicating with the engine control by establishing communication with the engine control on a first communication bus using system credential authentication, establishing communication between the engine control and a data storage system on a second communication bus, establishing wireless communication with the offboard system using system credential authentication, and providing access from the offboard system to the engine control and from the engine control to the data storage system to enable one or more updates of the data storage system by the offboard system based on service credential authentication.

A data reporting method includes generating a data uploading token by a main network node, determining, from a plurality of data-uploading network nodes waiting for data uploading, a plurality of qualified network nodes having a data uploading qualification, allowing the qualified network nodes to compete for the data uploading token, and coordinating a data uploading operation with a winning network node of the qualified network nodes that obtained the data uploading token.

A CAN device is provided with an encryption function and a decryption function. The encryption function allows messages to be encrypted and put onto a CAN bus. The decryption function allows the messages on the CAN bus to be decrypted. The encryption and decryption functions share keys which change over the course of time.

A CAN device is provided with an encryption function and a decryption function. The encryption function allows messages to be encrypted and put onto a CAN bus. The decryption function allows the messages on the CAN bus to be decrypted. The encryption and decryption functions share keys which change over the course of time.

A symmetric multiprocessor includes with a hierarchical ring-based interconnection network is disclosed. The symmetric processor includes a plurality of buses comprised on the symmetric multiprocessor, wherein each of the buses are configured in a circular topology. The symmetric multiprocessor also includes a plurality of multi-processing nodes interconnected by the buses to make a hierarchical ring-based interconnection network for conveying commands between the multi-processing nodes. The interconnection network includes a command network configured to transport commands based on command tokens, wherein the tokens dictate a destination of the command, a partial response network configured to transport partial responses generated by the multi-processing nodes, and a combined response network configured to combine the partial responses generated by the multi-processing nodes using combined response tokens.

A symmetric multiprocessor includes with a hierarchical ring-based interconnection network is disclosed. The symmetric processor includes a plurality of buses comprised on the symmetric multiprocessor, wherein each of the buses are configured in a circular topology. The symmetric multiprocessor also includes a plurality of multi-processing nodes interconnected by the buses to make a hierarchical ring-based interconnection network for conveying commands between the multi-processing nodes. The interconnection network includes a command network configured to transport commands based on command tokens, wherein the tokens dictate a destination of the command, a partial response network configured to transport partial responses generated by the multi-processing nodes, and a combined response network configured to combine the partial responses generated by the multi-processing nodes using combined response tokens.