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21. 发明授权

US11190372B2 Differential bus network 有权
公开(公告)号：US11190372B2
公开(公告)日：2021-11-30
申请号：US17248770
申请日：2021-02-05
申请人： NXP B.V.
发明人： Matthias Berthold Muth , Clemens Gerhardus Johannes de Haas
IPC分类号： H04L12/40 , H04L25/08
摘要： 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.

22. 发明申请

US20210258185A1 DIFFERENTIAL BUS NETWORK 有权
公开(公告)号：US20210258185A1
公开(公告)日：2021-08-19
申请号：US17248770
申请日：2021-02-05
申请人： NXP B.V.
发明人： Matthias Berthold Muth , Clemens Gerhardus Johannes de Haas
IPC分类号： H04L12/40 , H04L25/08
摘要： 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.

23. 发明授权

US10567192B2 Controller area network (CAN) device and method for operating a CAN device 有权
公开(公告)号：US10567192B2
公开(公告)日：2020-02-18
申请号：US15927936
申请日：2018-03-21
申请人： NXP B.V.
发明人： Rolf van de Burgt , Clemens Gerhardus Johannes de Haas
IPC分类号： H04L12/40
摘要： Embodiments of a method and a device are disclosed. In an embodiment, a method for operating a Controller Area Network (CAN) transceiver involves detecting phase information related to a CAN data frame that is transmitted by the CAN transceiver and in response to the phase information, switching between different transmitter configurations of the CAN transceiver within a bit interval for use in transmitting subsequent bits of the CAN data frame.

24. 发明申请

US20180260353A1 Transmitter with independently adjustable voltage and impedance 审中-公开
公开(公告)号：US20180260353A1
公开(公告)日：2018-09-13
申请号：US15905061
申请日：2018-02-26
申请人： NXP B.V.
发明人： Clemens Gerhardus Johannes de Haas , Johannes Petrus Antonius Frambach , Thomas John William Donaldson
IPC分类号： G06F13/40
CPC分类号： G06F13/4027 , H03K19/0005 , H04L12/40032 , H04L25/0274 , H04L25/0278 , H04L2012/40215 , H04L2012/40273
摘要： The present application relates to a circuit and a transceiver comprising the circuit. The circuit comprises two bus line terminals for coupling to a bus and a bridge circuit comprising two legs. Each leg comprises an adjustable pull resistance and an adjustable push resistance connected in series with a respective one of the two bus line terminals. The adjustable pull resistances and the adjustable push resistances of the bridge circuit enable to independently adjust a driver impedance and to independently adjust a differential driver voltage on the bus. The circuit may further comprise an edge detector is coupled to a transmit data input and configured to detect a transition on the transmit data input and to adjust the impedances of the adjustable pull resistances and the adjustable push resistances in response to the detected transition.

25. 发明申请

US20140330996A1 DEVICES AND METHODS FOR AN ENHANCED DRIVER MODE FOR A SHARED BUS 有权
标题翻译：用于共享总线的增强驱动器模式的装置和方法
公开(公告)号：US20140330996A1
公开(公告)日：2014-11-06
申请号：US13886855
申请日：2013-05-03
申请人： NXP B.V.
发明人： Clemens Gerhardus Johannes de Haas
IPC分类号： G06F13/40 , G06F13/42
CPC分类号： G06F13/4031 , G06F13/4072 , G06F13/4282 , H03K19/01812 , H04L12/40032 , H04L12/40169 , H04L12/6418 , H04L25/0264 , H04L25/0272 , H04L25/028 , H04L49/30 , H04L2012/40215 , H04L2012/40273
摘要： A device includes a transmission circuit that is configured and arranged to transmit data in accordance with a signal bus protocol that uses passive bias to set a signal bus to a recessive value in the absence of an actively-driven signal value. The transmission circuit includes a first driver circuit that is configured and arranged to actively drive the signal bus to a dominant value that is different from the recessive value. The transmission circuit also includes a second driver circuit that is configured and arranged to actively drive the signal bus to the recessive value. A control circuit is configured and arranged to disable the second driver circuit in response to the device operating in a first data transmission mode, and to enable the second driver circuit in response to the device entering a second transmission mode.
摘要翻译：一种设备包括传输电路，其被配置和布置为根据使用无源偏置的信号总线协议传输数据，以在没有主动驱动的信号值的情况下将信号总线设置为隐性值。传输电路包括第一驱动器电路，其被配置和布置为主动地将信号总线驱动到与隐性值不同的显性值。传输电路还包括第二驱动器电路，其被配置和布置成主动地将信号总线驱动到隐性值。控制电路被配置和布置成响应于设备在第一数据传输模式下操作而禁用第二驱动器电路，并且响应于设备进入第二传输模式使第二驱动器电路能够使能。

26. 发明授权

US11588663B1 Controller area network transceiver 有权
公开(公告)号：US11588663B1
公开(公告)日：2023-02-21
申请号：US17450191
申请日：2021-10-07
申请人： NXP B.V.
发明人： Matthias Berthold Muth , Clemens Gerhardus Johannes de Haas , Axel Engelhard
IPC分类号： H04L12/40 , H03K19/08 , G06F13/374
摘要： 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.

27. 发明授权

US11586568B2 Controller and transceiver 有权
公开(公告)号：US11586568B2
公开(公告)日：2023-02-21
申请号：US17302732
申请日：2021-05-11
申请人： NXP B.V.
发明人： Clemens Gerhardus Johannes de Haas
IPC分类号： G06F13/20 , H04L12/40
摘要： The disclosure relates to a controller and a transceiver and associated software and methods. A controller for communicating with a transceiver in a network node having a first mode of operation and a second mode of operation, the controller comprising: a first-data-terminal for communicating with the transceiver; and a second-data-terminal for communicating with the transceiver, in which the controller is configured to: in the second mode, determine receive-data based on a first-data-signal at the first-data-terminal and a second-data-signal at the second-data-terminal; determine that a change of mode from the second mode to the first mode is required; and in response to determining that a change of mode from the second mode to the first mode is required, provide a controller-mode-signal that instructs the transceiver to operate in the first mode rather than the second mode, wherein the controller-mode-signal is provided by simultaneously driving a first current on the first-data-terminal and a second current on the second-data-terminal.

28. 发明授权

US11061844B2 Transmitter with independently adjustable voltage and impedance 有权
公开(公告)号：US11061844B2
公开(公告)日：2021-07-13
申请号：US15905061
申请日：2018-02-26
申请人： NXP B.V.
发明人： Clemens Gerhardus Johannes de Haas , Johannes Petrus Antonius Frambach , Thomas John William Donaldson
IPC分类号： G06F13/40 , H04L25/02 , H04L12/40 , H03K19/00
摘要： The present application relates to a circuit and a transceiver comprising the circuit. The circuit comprises two bus line terminals for coupling to a bus and a bridge circuit comprising two legs. Each leg comprises an adjustable pull resistance and an adjustable push resistance connected in series with a respective one of the two bus line terminals. The adjustable pull resistances and the adjustable push resistances of the bridge circuit enable to independently adjust a driver impedance and to independently adjust a differential driver voltage on the bus. The circuit may further comprise an edge detector is coupled to a transmit data input and configured to detect a transition on the transmit data input and to adjust the impedances of the adjustable pull resistances and the adjustable push resistances in response to the detected transition.

29. 发明申请

US20210001788A1 COLLISION DETECTION ON A CAN BUS 有权
公开(公告)号：US20210001788A1
公开(公告)日：2021-01-07
申请号：US16916369
申请日：2020-06-30
申请人： NXP B.V.
发明人： Clemens Gerhardus Johannes de Haas
IPC分类号： B60R16/023 , H04L12/40
摘要： The disclosure relates to a controller area network, CAN, unit and associated method and computer program. The CAN unit is configured to detect a transmit signal edge on a transmit signal for a CAN transceiver; detect a corresponding receive signal edge on a receive signal for a CAN controller of the CAN transceiver; and detect a collision on the CAN bus based on a propagation delay between the transmit signal edge and the corresponding receive signal edge.

30. 发明申请

US20190296938A1 CONTROLLER AREA NETWORK (CAN) DEVICE AND METHOD FOR OPERATING A CAN DEVICE 审中-公开
公开(公告)号：US20190296938A1
公开(公告)日：2019-09-26
申请号：US15927936
申请日：2018-03-21
申请人： NXP B.V.
发明人： Rolf van de Burgt , Clemens Gerhardus Johannes de Haas
IPC分类号： H04L12/40
摘要： Embodiments of a method and a device are disclosed. In an embodiment, a method for operating a Controller Area Network (CAN) transceiver involves detecting phase information related to a CAN data frame that is transmitted by the CAN transceiver and in response to the phase information, switching between different transmitter configurations of the CAN transceiver within a bit interval for use in transmitting subsequent bits of the CAN data frame.

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