H04L12/40104

HIGH BANDWIDTH CAN-DERIVATIVE COMMUNICATION
20230060218 · 2023-03-02 ·

A communication system for high bandwidth communication over a Controller Area Network (CAN) communication bus, the data frame has a logical structure according to CAN Standard ISO 11898-1 and is composed of a sequence of bits and waveform defining a Start - Of-Frame-Bit, an Arbitration Field, a Control Field, a Data Field, a CRC Field, an Acknowledge Field and an End- Of-Frame Field, the communication system comprises at least one transmitting node and at least one receiving node, and a controller unit of the transmitting node is to code and transmit the Data Field by modulating a sequence of pulses with varying durations defined by deviating a number of level transitions of a known cyclic signal waveform by a series of delays, wherein the series of delays is indicative of a sequence of data symbols to be transmitted and wherein the series of delays is calculated by applying different modulation calculations for odd and even elements,

VEHICLE CONTROL SYSTEM, VEHICLE, AND VEHICLE CONTROL METHOD
20220314929 · 2022-10-06 ·

The vehicle control system comprises: a first ECU comprising a processor for receiving first information that indicates whether a vehicle is moving and, based on the first information, generating a first control signal to control locking of a steering; and a second ECU comprising a processor for receiving second information that indicates whether the vehicle is moving and, based on the second information, generating a second control signal to control the locking of the steering, wherein the second ECU outputs a signal to lock the steering based on the first control signal and the second control signal.

Bidirectional interface configuration for memory

Apparatuses and methods can be related to configuring interface protocols for memory. An interface protocol can define the commands received by a memory device utilizing transceivers, receivers, and/or transmitters of an interface of a memory device. An interface protocol used by a memory device can be implemented utilizing a decoder of signals provided via a plurality of transceivers of the memory device. The decoder utilized by a memory device can be selected by setting a mode register of the memory device.

Detecting anomalies on a controller area network bus

A process detects anomalies on a controller area network (CAN) bus. An arbitration field in a message on the CAN bus is analyzed, and a data field in the message on the CAN bus is inspected. The process further monitors a frequency of message identifiers that are transmitted across the CAN bus, and determines that an overall bus load crosses a threshold. The process then transmits an alert when the analyzing the arbitration field, the inspecting the data field, the monitoring the frequency, and the determining the overall bus load indicate that an anomaly has occurred on the CAN bus.

Determining a Session Key Using Session Data
20220360468 · 2022-11-10 ·

The various examples are directed to establishing a secure session between a device and a server. The device and the server may establish a session key. The session key may be used for encrypting data. After authenticating the session key, the server may transmit secure session data to the device, and the device may store the secure session data. The server may transmit information for deriving, based on secure session data, the session key to a different server. The device may transmit the secure session data to the server, or to the different server, to re-establish the secure session. The different server may derive, using the information and based on the secure session data, the session key. The different server may re-establish, using the session key, the secure session.

Determining a session key using session data

The various examples are directed to establishing a secure session between a device and a server. The device and the server may establish a session key. The session key may be used for encrypting data. After authenticating the session key, the server may transmit secure session data to the device, and the device may store the secure session data. The server may transmit information for deriving, based on secure session data, the session key to a different server. The device may transmit the secure session data to the server, or to the different server, to re-establish the secure session. The different server may derive, using the information and based on the secure session data, the session key. The different server may re-establish, using the session key, the secure session.

VARIABLE MULTIPLEXER FOR VEHICLE COMMUNICATION BUS COMPATIBILITY
20220044500 · 2022-02-10 ·

Disclosed are systems, methods, and non-transitory computer-readable media for a variable multiplexer for vehicle communication bus compatibility. A device includes a variable multiplexer that can be electronically configured to a desired pinout configuration to provide compatibility with multiple vehicles. For example, the variable multiplexer may be electronically configured based on a pinout configuration used by the vehicle to connect pins in the device to the corresponding pins on the data link connector that provide the same specified function. The device may therefore use a single standardized cable with vehicles using a variety of pinout configurations.

CONTROLLER AREA NETWORK (CAN) BUS SECURITY INVENTION
20220038304 · 2022-02-03 · ·

A serial communication system for communicating data over a Controller Area Network (CAN) bus comprises a security slave device located between a first system node and a Controller Area Network (CAN) bus. The system is characterised in that: said security slave device further comprises a tagging means for inserting data indicative of said first node into a Controller Area Network (CAN) frame received from said first node; said system further comprises a security master device, located between said Controller Area Network (CAN) bus and a second system node; said security master device further comprises a means of extracting said data indicative of first said node from a received data frame; and said system further comprises a means of checking the validity of received Controller Area Network (CAN) frame associated to said extracted data indicative of said first node.

Field unit and a method for operating an automation system
09734114 · 2017-08-15 · ·

A field unit with a bus node which is designed for signal conversion between an external bus protocol and an internal bus protocol for communication with at least one function module, in such a way that a sequential transmission of data packets is made along an internal bus system and also including function modules which are designed for processing of data packets and for signal transmission with at least one downstream function component wherein the bus node is so designed for a differentiation of data packets of the higher-level control device that in the bus node a processing of non-safety-related data packets to the internal bus system and onwards transmission of safety-related data packets to the internal bus system is effected, and wherein at least one function module connected to the internal bus system is designed as a safety module for processing of safety-related data packets.

SYSTEMS AND METHODS FOR DATA MESSAGE DECODING AND ASSET TYPE FINGERPRINTING

A method for by an asset tracking system is provided. An example method includes receiving data messages from an asset coupled to the asset tracking system and attempting to obtain asset information from data messages with reference to a local set of signal definitions indicating how data messages received from the asset are to be decoded into asset information. Upon failing to obtain the asset information the asset tracking system requests from an asset data analysis system the generation of a generated signal definition indicating how the data message of the outstanding type is to be obtained from the asset. The asset tracking system provides access to at least one undecoded data message of the outstanding data type to the asset data analysis system, receives the generated signal definition from the asset data analysis system, and adds the generated signal definition to the local set of signal definitions.