Patent classifications
H04L2012/40234
BUS DRIVER WITH RISE/FALL TIME CONTROL
A driver includes an open drain output transistor, a capacitor, a first current source, and first and second transistors. Upon assertion of a transmit signal to turn on the first transistor, a controller asserts a second control signal to turn on the second transistor responsive to a voltage of the capacitor being less than a threshold voltage of the open drain output transistor to thereby increase the control terminal voltage for the open drain output transistor at a first time rate. The controller deasserts the second control signal to turn off the second transistor responsive to the capacitor voltage exceeding the threshold voltage. Responsive to the capacitor's voltage exceeding the threshold, the first current source charges the capacitor to further increase the control terminal voltage at a second time rate that is smaller than the first time rate.
Transmission system
A transmission system comprising: an output-terminal configured to provide an output-signal; a phase-shift oscillator comprising a plurality of phase-shifters, each configured to provide one of a plurality of phase-shifted-signals; and a controller configured to provide a selected one of the phase-shifted-signals to the output-signal as a transition in the output-signal, at an instant in time that is based on one or more of the plurality of phase-shifted-signals.
MONITORING LOCAL INTERCONNECT NETWORK (LIN) NODES
The present disclosure relates to a method of monitoring Local Interconnect Network (LIN) nodes and a monitoring device performing the method. In an aspect a method of a monitoring device of monitoring a plurality of LIN buses is provided, wherein at least one LIN node is connected to each LIN bus, said plurality of LIN buses being interconnected via the monitoring device. The method comprises detecting, for each LIN bus, any dominant data being sent over said each LIN bus by a LIN node connected to said each LIN bus and routing said any dominant data received by the monitoring device over said each LIN bus to all remaining LIN buses without overwriting any dominant data sent over the remaining LIN buses.
FULL FEATURED PACKET-BASED AUTOMOTIVE NETWORK SECURITY GATEWAY
In some examples, an automobile comprises a plurality of electrical components interconnected by a communication network. The automobile comprises a set of policies that logically partition the electrical components of the automobile into a first zone having one or more of the critical components and a second zone having one or more of the non-critical components, the policies specifying rules for communication between the zones defined for the communication network within the automobile. The automobile further comprises a security gateway embedded within the automobile and coupled, by the communication network, to the one or more critical components and the one or more non-critical components. The security gateway is configured to provide security operations by applying the policies to communications within the automobile to determine, based on the rules defined by the policies, whether to forward or drop data packets communicated on the communication network.
VEHICLE NETWORK TOPOLOGY SCHEME AND SYSTEMS FOR IMPLEMENTING THE SAME
Vehicle network topology schemes and systems are disclosed. For one example, a data processing system, e.g., a server or computer, includes an interface and a processor. The receiver can receive one or more CAN, LIN or Ethernet network descriptor files related to one or more ECUs interconnected within a network topology of a vehicle. The processor can convert the one or more CAN, LIN or Ethernet descriptor files into a uniform network descriptor file and auto-generate one or more ECU specific files or code using the uniform network descriptor file for use by the one or more ECUs such that messages, data or signals can be communicated between the ECUs in the network topology.
Local interconnect network bus architecture
The present invention relates to an integrated circuit device for controlling LIN slave nodes based on a control signal transmitted by a LIN master control device. The IC device comprises a slave node circuit for processing the control signal when received in the form of a LIN message frame via a first data line terminal. The IC device also comprises a master node circuit for processing further control signals to be transmitted in the form of LIN message frames via a second data line terminal to the LIN slave nodes. The IC device also comprises a processing unit for controlling the LIN slave nodes based on the control signal by composing the further control signals.
Vehicular Control Apparatus
A vehicular control apparatus is used in an onboard system provided with a plurality of information processors mutually connected via a communication bus, and includes a storage section for storing information, and an arithmetic section for executing a process based on the information stored in the storage section. The information contains first management information relating to a security abnormality as a communication data abnormality owing to security attack from outside the onboard system, and second management information relating to a safety abnormality as a communication data abnormality owing to an abnormality in the onboard system. The first management information contains first limit condition information indicating a first limit condition for executing a security coping with the security abnormality. The second management information contains second limit condition information indicating a second limit condition for executing a safety coping with the safety abnormality. Upon detection of the communication data abnormality in the onboard system, the arithmetic section determines a coping content to the detected communication data abnormality based on the first management information and the second management information.
Systems and methods for communication bus security in a vehicle
Systems and methods are provided and include a sensor that is configured to generate a first link key data packet. A control module of a vehicle is configured to generate a second link key data packet. In response to (i) a first authenticated response of the first link key data packet matching a second authenticated response of the second link key data packet and (ii) a user device being connected to a communication gateway of the control module by a Bluetooth low energy (BLE) communication link, the sensor is configured to communicate signal information to the control module using a hardwire link that electrically couples the control module and the sensor. The signal information includes information corresponding to physical characteristics of the BLE communication link.
Bus driver with rise/fall time control
A driver includes an open drain output transistor, a capacitor, a first current source, and first and second transistors. Upon assertion of a transmit signal to turn on the first transistor, a controller asserts a second control signal to turn on the second transistor responsive to a voltage of the capacitor being less than a threshold voltage of the open drain output transistor to thereby increase the gate voltage for the open drain output transistor at a first time rate. The controller deasserts the second control signal to turn off the second transistor responsive to the capacitor voltage exceeding the threshold voltage. Responsive to the capacitor's voltage exceeding the threshold, the first current source charges the capacitor to further increase the gate voltage at a second time rate that is smaller than the first time rate.
Micro-environment module architecture for infant care devices
An infant care station that includes multiple operational modules that communicate with each other to carry out the infant care station functions. The multiple modules form part of a micro-environmental platform that allows for communication and power connections between all of the operational components required within the infant care station. The multiple modules communicate with each other utilizing a universal interface bus that includes power connections, communication connections and control connections between the multiple modules. Sensor data obtained by various sensors is stored using a standard data format. A data repository is included in one of the modules and is used to store sensor data obtained from the infant patient, operational protocols and other information needed to operate the infant care station. The data repository provides a central location for both data producers and data subscribers that are part of the micro-environment platform.