公开(公告)号：US12113647B2

公开(公告)日：2024-10-08

申请号：US18172142

申请日：2023-02-21

Applicant: NXP B.V.

Inventor： Lucas Pieter Lodewijk van Dijk ,  Martin Wagner ,  Gerald Kwakernaat

IPC: H04L12/40 ,  H04L41/0654

CPC classification number: H04L12/40169 ,  H04L41/0654 ,  H04L2012/40215

Abstract: An apparatus comprising a first and second terminal configured to couple the apparatus to a first and second bus wire of a communication bus; a transceiver arrangement for communicating with one or more network nodes via the communication bus, the transceiver arrangement configured to provide and receive differential signalling according to a communication scheme to/from the communication bus, wherein the communication scheme defines at least a voltage to be used to provide said differential signalling; the apparatus configured to: based on a fault detection signal indicative of the occurrence of a fault in at least the communication bus, transmit a reconfiguration signal for the network nodes and wherein at least part of the reconfiguration signal has a high-voltage-level comprising a voltage higher than that defined in the communication scheme for said differential signalling; and wherein said reconfiguration signal is configured to cause the network nodes to switch single-ended signalling.

公开(公告)号：US20240168090A1

公开(公告)日：2024-05-23

申请号：US18485919

申请日：2023-10-12

Applicant: NXP B.V.

Inventor： Lucas Pieter Lodewijk van Dijk ,  Gerald Kwakernaat

IPC: G01R31/317 ,  G01R31/30

CPC classification number: G01R31/31715 ,  G01R31/3004 ,  G01R31/31713

Abstract: The present disclosure relates to a controller area network, CAN, transceiver, comprising: a transmit data, TXD, interface, a receive data, RXD, interface, a CAN Bus interface, a transmitter, a receiver, a reducer, and a test unit, wherein the transmitter is coupled between the TXD interface and a test unit input of the test unit, a first test unit output of the test unit is coupled to the CAN Bus interface, the CAN Bus interface is coupled to a receiver input of the receiver via the reducer, a second test unit output of the test unit is coupled to the receiver input of the receiver, the test unit is configured, in a first state, to couple the test unit input to the first test unit output and is configured, in a second state, to couple the test unit input to the second test unit output.

公开(公告)号：US20240070099A1

公开(公告)日：2024-02-29

申请号：US18361702

申请日：2023-07-28

Applicant: NXP B.V.

Inventor： Lucas Pieter Lodewijk van Dijk ,  Gerald Kwakernaat

IPC: G06F13/40 ,  G06F1/26

CPC classification number: G06F13/40 ,  G06F1/266

Abstract: The present invention relates to a Controller Area Network, CAN, transceiver, comprising: a CAN BUS interface, a transmit data, TXD, interface, a receive data, RXD, interface, a receiver, and a transmitter, wherein the transceiver is configured to receive, via the TXD interface, from a CAN controller, a digital TXD transmit signal representing a frame comprising a plurality of bits, wherein the transmitter is configured to generate, at the CAN BUS interface, a BUS signal representing the bits of the frame in a sequence, wherein the transceiver is configured to measure an electrical current of the transmitter, to detect each dominant bit represented by the BUS signal based on the transmitter current, to detect an error sequence of at least six consecutive dominant bits being detected based on the transmitter current, and to generate a control signal representing a fault of the transmitter in response to a detected error sequence. The present invention relates to a method for the CAN transceiver.

公开(公告)号：US20240007326A1

公开(公告)日：2024-01-04

申请号：US18334028

申请日：2023-06-13

Applicant: NXP B.V.

Inventor： Clemens Gerhardus Johannes de Haas ,  Matthias Berthold Muth ,  Gerald Kwakernaat ,  Lucas Pieter Lodewijk van Dijk

IPC: H04L12/40

CPC classification number: H04L12/40006 ,  H04L2012/40215

Abstract: 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.

公开(公告)号：US11516043B2

公开(公告)日：2022-11-29

申请号：US17248675

申请日：2021-02-02

Applicant: NXP B.V.

Inventor： Rainer Evers ,  Gerald Kwakernaat ,  Matthias Berthold Muth

IPC: H04L12/40 ,  B60R16/02

Abstract: 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.

公开(公告)号：US20240178875A1

公开(公告)日：2024-05-30

申请号：US18484852

申请日：2023-10-11

Applicant: NXP B.V.

Inventor： Lucas Pieter Lodewijk van Dijk ,  Gerald Kwakernaat

IPC: H04B1/40 ,  H04L12/40

CPC classification number: H04B1/40 ,  H04L12/40 ,  H04L2012/40215

Abstract: The present disclosure relates to a CAN transceiver, comprising: a transmit data, TXD, interface, a receive data, RXD, interface, a CAN BUS interface, a first control interface, a transmitter, a receiver, and a control unit, wherein the transmitter comprises a first driver path comprising a first series circuit comprising a first switch unit and a second switch unit, wherein the transmitter comprises a second driver path comprising a second series circuit with a third switch unit and a fourth switch unit, wherein the first driver path is coupled to a first terminal of the CAN BUS interface and the second driver path is coupled to a second terminal of the CAN BUS interface, wherein the transmitter comprises a driver unit configured to control the first switch unit and the third switch unit based on the TXD signal, wherein the control unit is coupled to the first control interface for receiving a first control signal, wherein the control unit is coupled to at least one switch unit of the first driver path and to at least one switch unit of the second driver path to control the switch units coupled to the control unit, wherein the control unit is configured, if the first control signal represents a deactivation message, to deactivate at least one switch unit of each driver path. The present disclosure also relates to a method for the CAN transceiver.

公开(公告)号：US20230291605A1

公开(公告)日：2023-09-14

申请号：US18172142

申请日：2023-02-21

Applicant: NXP B.V.

Inventor： Lucas Pieter Lodewijk van Dijk ,  Martin Wagner ,  Gerald Kwakernaat

IPC: H04L12/40 ,  H04L41/0654

CPC classification number: H04L12/40169 ,  H04L41/0654 ,  H04L2012/40215

Abstract: An apparatus comprising a first and second terminal configured to couple the apparatus to a first and second bus wire of a communication bus; a transceiver arrangement for communicating with one or more network nodes via the communication bus, the transceiver arrangement configured to provide and receive differential signalling according to a communication scheme to/from the communication bus, wherein the communication scheme defines at least a voltage to be used to provide said differential signalling; the apparatus configured to: based on a fault detection signal indicative of the occurrence of a fault in at least the communication bus, transmit a reconfiguration signal for the network nodes and wherein at least part of the reconfiguration signal has a high-voltage-level comprising a voltage higher than that defined in the communication scheme for said differential signalling; and wherein said reconfiguration signal is configured to cause the network nodes to switch single-ended signalling.

公开(公告)号：US20210250199A1

公开(公告)日：2021-08-12

申请号：US17248675

申请日：2021-02-02

Applicant: NXP B.V.

Inventor： Rainer Evers ,  Gerald Kwakernaat ,  Matthias Berthold Muth

IPC: H04L12/40 ,  B60R16/02

Abstract: Disclosed are a transceiver device (100) and a method for interfacing between at least two different voltage domains (12, 14), namely a first supply voltage domain (12) having a higher first supply voltage and a second supply voltage domain (14) having a lower second supply voltage. The transceiver device (100) has: a first interface (110), which is supplied by the first supply voltage and is adapted to interface to at least one external first digital device (20) operating in the first supply voltage domain (12); a second interface (120), which is supplied by the second supply voltage and is adapted to interface to an external communication bus (24) operating in the second supply voltage domain (14); a first internal communication link (130), which is adapted to transfer transmit data, which can be generated by the external first digital device (20) operating in the first supply voltage domain (12), from the first interface (110) to the second interface (120), and a second internal communication link (170), which is adapted to transfer transmit data, which can be supplied from the external communication bus (24) operating in the second supply voltage domain (14), from the second interface (120) to the first interface (110). The transceiver device (100) may be embodied as a monolithic integrated circuit, which may be implemented in silicon-on-insulator, SOT, technology. The first and the second internal communication link (130, 170) may be based on the principles of one of differential voltage transmission (140, 180) and digital current loop transmission (150, 190).

公开(公告)号：US12261715B2

公开(公告)日：2025-03-25

申请号：US18305849

申请日：2023-04-24

Applicant: NXP B.V.

Inventor： Lucas Pieter Lodewijk van Dijk ,  Clemens Gerhardus Johannes de Haas ,  Gerald Kwakernaat

IPC: H04L12/40

Abstract: The present invention relates to a CAN module configured to be arranged between a CAN controller and a CAN transceiver. The CAN module received a TXD input signal from the CAN controller and is configured to transmit an TXD output signal to the CAN transceiver, wherein the TXD output signal is adapted by the CAN module to also comprising a test impulse. When monitoring the CAN BUS, the CAN transceiver will feed back an RDX signal to the CAN module and the CAN controller. The CAN module is configured to detect an error on the CAN transceiver or the CAN BUS depending on the transmitted test impulse and the test impulse received via the RDX signal. The present inventio also relates to a system comprising the CAN module and a method for the CAN module.

公开(公告)号：US12212431B2

公开(公告)日：2025-01-28

申请号：US18334028

申请日：2023-06-13

Applicant: NXP B.V.

Inventor： Clemens Gerhardus Johannes de Haas ,  Matthias Berthold Muth ,  Gerald Kwakernaat ,  Lucas Pieter Lodewijk van Dijk

IPC: H04L12/40

Abstract: 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.