Nxp B.v.

Koninklijke Philips Corporation N.v.

Matthias Berthold Muth

Bernd Uwe Gerhard Elend

Clemens Gerhardus Johannes De Haas

Clemens De Haas

Bernd Elend

Gerald Kwakernaat

Steffen Mueller

Hartmut Habben

Anthony Adamson

Thierry G C Walrant

Lucas Pieter Lodewijk Van Dijk

Vibhu Sharma

Georg Olma

Rainer Evers

Peter Michael Buehring

Axel Engelhard

Thomas Suermann

Jochen Seemann

Swaminatha Vijayaraj Anandan

The present disclosure relates to a CAN controller module. The CAN controller module is configured to detect transmission errors during transmissions of bits of a CAN frame via a CAN but and to handle these transmission errors robustly such that a high transmission rate is possible even if the transmission errors occur. The present disclosure also relates to a method for the CAN controller module.

Controller area network module and a method for the CAN module

The present disclosure relates to a delay module for a CAN device. The delay module is configured to delay only a single signal change of an RXD signal, wherein the single signal change forms the end of an idle state. Use of the delay module allows a second RXD signal to be generated. The present disclosure further relates to a CAN device comprising two CAN controllers. Each of the two CAN controllers may be provided with one of the two RXD signals. The CAN device may further be configured to detect possible errors based on the decoded bits of the RXD signals. As a result, the CAN device can communicate error-free with both distantly located further CAN devices and closely located further CAN devices, while ensuring a high data rate. The present disclosure also relates to a method for the delay module.

Delay module for a controller area network (CAN), a CAN device, and a method for the delay module

The present disclosure relates to a Controller Area Network, CAN, controller, comprising: an input interface, a transmit data, TXD, interface, and a processing unit, wherein the processing unit is configured to receive via the input interface a data packet comprising a packet priority field, a packet payload field, the processing unit is configured to generate a first CAN frame based on the data packet, such that a first payload field of the first CAN frame represents at least the packet payload field and a first identifier field of the first CAN frame includes, a first identifier part representing predefined data for identifying the CAN controller and a second identifier part representing the packet priority field and/or includes a queue field representing a queue priority for the first CAN frame, and the processing unit is configured to send the first CAN frame via the TXD interface.

Can controller, can device and method for the can controller

The present invention relates to a CAN node being configured to predict, based on the at least one response message and a reference response, a fault of the CAN network and to determine a fault location of the predicted fault of the CAN network. The present disclosure also relates to a CAN system and a method for the CAN node.

Controller area network node, CAN system and method for the node

A Controller Area Network, CAN, device comprising: a compare module configured to interface with a CAN transceiver, a CAN decoder configured to decode an identifier of a CAN message received from the RXD input interface; an identifier memory configured to store an entry that corresponds to at least one identifier; compare logic configured to compare a received identifier from a CAN message to the entry that is stored in the identifier memory and to output a match signal upon a match; a signal generator configured to output, in response to the match signal, a signal to invalidate the CAN message, wherein the signal is output from the TXD output interface to the CAN transceiver; and wherein the signal generated by the signal generator provides for one or more dominant bits that are timed so that at a bit immediately following a FDF field or the FDF field bit is made dominant.

Controller area network device

A Controller Area Network, CAN, bit stream sampling apparatus for a CAN controller, the apparatus configured to receive a bit stream from a CAN transceiver, the apparatus configured to:

Controller area network apparatus

A Controller Area Network, CAN, transceiver comprising: two terminals for coupling to a CAN bus; a transmitter arrangement configured to transmit signalling on the bus based on transmit data, the transmitter arrangement configured to drive the bus to a dominant state or recessive state based on the transmit signal; an impedance control device; a signalling detector to determine the length of time the transmit data comprises a logic zero prior to a transition to a logic one state and: based on the length of time being longer than a predetermined threshold, provide for control of an output impedance by the impedance control device in accordance with a first scheme; and based on the length of time being shorter than said predetermined threshold, provide for one of: control of said output impedance in accordance with a second scheme; and no control of the output impedance by the impedance control device.

Controller area network controller and transceiver

A network node for coupling to a communication bus, the node comprising:

Network node with diagnostic signalling mode

A Controller Area Network (CAN) transceiver determines a voltage differential signal from analog signaling and provides a digital output signal at a receiver output to a CAN controller based on the voltage differential signal. The analog signaling received from the CAN bus can operate with a first voltage level scheme of a first CAN protocol and a second voltage level scheme for a second CAN protocol. A first comparator compares the voltage differential signal to a first threshold which is set to a value which differentiates between a logic low bit and logic high bit in accordance with the second CAN protocol. Filtering circuitry selectively filters an output of the first comparator based on detection of noise on the CAN bus to provide a first digital signal indicative of activity on the CAN bus according to the second CAN protocol.

Controller area network transceiver

The disclosure relates to a controller area network, CAN, transceiver and a CAN controller. The CAN transceiver is configured to: compare a signal from the CAN bus with a negative threshold level; and provide a wake-up indication to the CAN controller based on the signal matching a predetermined pattern of one or more periods in which the signal is less than the negative threshold level. The CAN controller is configured to provide instructions to transmit a wake-up indication on the CAN bus.

Controller area network transceiver and controller

A transceiver has a first interface supplied by a first supply voltage to interface with external devices operating in a first supply domain and a second interface supplied by a second supply voltage and adapted to interface to an external communication bus operating in a second supply domain. The transceiver has a first internal communication link, which is adapted to transfer transmit data generated by an external device operating in the first supply domain, from the first interface to the second interface, and a second internal communication link, which is adapted to transfer transmit data be supplied from the external communication bus operating in the second supply domain from the second interface to the first interface.

Monolithic high-voltage transceiver connected to two different supply voltage domains

A differential bus network comprising: a bus comprising two bus wires; at least three nodes each comprising: a transceiver comprising: bus terminals for coupling, respectively, to the two wires of the bus; a receiver arrangement configured to receive differential signalling from the bus terminals and determine a digital receive signal based on said differential signalling; and a transmitter arrangement configured to apply differential signalling to the bus terminals based on a digital transmit signal, the transmitter arrangement comprising a first transmitter configured to increase the potential difference between the wires of the bus to a first differential voltage state and maintain the first differential state and a suppression element configured to decrease the potential difference between the two wires of the bus towards a second differential voltage state, the transmitter arrangement further comprising a resistor coupled between the bus terminals configured to at least maintain the second differential voltage state.

Differential bus network

A circuit is provide comprising a first input coupled to a transmit data input of a bus transceiver; and a first output coupled to a bus. The circuit is configured to be coupled in parallel with the bus transceiver. The circuit is further configured to, in response to a dominant to recessive transition on the transmit data input, lower an impedance of the bus.

Push pull ringing suppression circuit

A Controller Area Network, CAN, device, () is described that includes: a CAN transmitter () connected to two CAN bus terminals () of the CAN device (); a receiver circuit () operably coupled to the two CAN bus terminals () of the CAN device (); and a controller () connected to the CAN transmitter (). The controller () is configured to: determine whether the CAN device () is operating as a transmitter node or a receiver node; detect a transition of the CAN device () from a dominant state to a recessive state; and in response to detecting both a transition of the CAN device () from the dominant state to the recessive state, and the determination of whether the CAN device () is operating as a transmitter node or a receiver node, control an output impedance of the CAN transmitter () to be within an impedance value range whilst a differential driver voltage on a CAN bus () connected to the CAN device () decreases to a predefined voltage.

Controller area network (CAN), CAN device and method therefor

A Controller Area Network, CAN, transceiver comprising a receiver arrangement for coupling to a CAN bus and configured to determine a differential signal from analog signalling received from the CAN bus; and a receive output for coupling to a CAN controller and wherein the receiver arrangement provides a digital output signal to the receive output based on the differential signal; wherein the receiver arrangement operates in at least a first mode in which it is configured to provide the digital output signal comprising logic 0 when the differential signal is greater than a first receiver threshold and provide the digital output signal comprising logic 1 when the differential signal is less than said first receiver threshold unless said differential signal satisfies a condition, whereupon the receiver arrangement is configured to provide the digital output signal comprising logic 0, wherein the condition comprises the differential signal being below an activity-voltage threshold.

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Stelle, Germany

Matthias Berthold Muth