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1. 发明申请

US20210006430A1 ERROR FRAME DETECTION 有权
公开(公告)号：US20210006430A1
公开(公告)日：2021-01-07
申请号：US16916413
申请日：2020-06-30
申请人： NXP B.V.
发明人： Clemens Gerhardus Johannes de Haas
IPC分类号： H04L12/40
摘要： The disclosure relates to a transceiver and associated method and computer program. The transceiver comprises a transmitter for transmitting, based on an input signal, a transmitter output voltage to a differential signaling bus, the transceiver configured to: generate, from the input signal, a copy of the transmitter output voltage to provide an expected differential bus voltage; measure a differential bus voltage from the differential signaling bus; and detect an error frame on the differential signaling bus based on a comparison between the measured differential bus voltage and the expected differential bus voltage.

2. 发明授权

US10791002B2 Controller area network (CAN) device and method for operating a CAN device 有权
公开(公告)号：US10791002B2
公开(公告)日：2020-09-29
申请号：US15681363
申请日：2017-08-19
申请人： NXP B.V.
发明人： Clemens Gerhardus Johannes de Haas , Matthias Berthold Muth
IPC分类号： H04L12/40 , H04L12/417 , H04L29/06 , H04L12/933 , G06F13/40 , H04L25/02 , H04L25/03
摘要： Embodiments of a method, a device and a computer-readable storage medium are disclosed. In an embodiment, a method for operating a Controller Area Network (CAN) device involves detecting a transition of a CAN transceiver of the CAN device from a dominant state to a recessive state and in response to detecting a transition of the CAN transceiver from the dominant state to the recessive state, controlling an output impedance of the CAN transceiver to be within a predefined range of an impedance value at the dominant state while a differential driver voltage on a CAN bus connected to the CAN transceiver decreases to a predefined voltage.

3. 发明授权

US09223736B2 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型驱动程序模式的设备和方法
公开(公告)号：US09223736B2
公开(公告)日：2015-12-29
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 , H04L12/40 , H03K19/018 , H04L12/64 , H04L25/02 , H04L12/935
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。

4. 发明申请

US20150137856A1 INPUT CIRCUIT WITH MIRRORING 有权
标题翻译：输入电路与镜像
公开(公告)号：US20150137856A1
公开(公告)日：2015-05-21
申请号：US14086150
申请日：2013-11-21
申请人： NXP B.V.
发明人： Clemens Gerhardus Johannes de Haas
IPC分类号： H03K3/012
CPC分类号： H03K3/012 , H03K5/08
摘要： Various aspects are directed to providing an output/state based upon an input value. Consistent with one or more embodiments, an apparatus includes a bias circuit that is connected between power and common rails and includes first and second current paths that provide first and second reference currents. A current-mirroring circuit provides a first mirrored current in response to a voltage input transitioning in a first direction between voltage levels, and a second mirrored current in response to a voltage input transitioning in an opposite direction. A logic circuit operates in a first state based upon the first mirrored current and the first reference current, and operates in a second state based upon the second mirrored current and the second reference current.
摘要翻译：各方面针对基于输入值提供输出/状态。根据一个或多个实施例，装置包括连接在功率和公共轨道之间的偏置电路，并且包括提供第一和第二参考电流的第一和第二电流路径。电流镜像电路响应于在电压电平之间的第一方向上的电压输入转换和响应于在相反方向上的电压输入转换的第二镜像电流来提供第一镜像电流。逻辑电路基于第一镜像电流和第一参考电流在第一状态下工作，并且基于第二镜像电流和第二参考电流在第二状态下操作。

5. 发明授权

US11616861B1 Symmetry receiving differential manchester encoding 有权
公开(公告)号：US11616861B1
公开(公告)日：2023-03-28
申请号：US17489362
申请日：2021-09-29
申请人： NXP B.V.
发明人： Clemens Gerhardus Johannes de Haas
IPC分类号： H04L69/00 , H03M5/12
摘要： A 10BASE-T1S PHY method and apparatus are provided for receiving an analog MDI signal conveying DME-encoded data at a receiver comparator to generate a digital output signal, processing the digital output signal using a pulse encoder to generate a pulse-coded output signal with pulses generated at each rising or falling transition in the digital output signal, processing the pulse-coded output signal with an output driver to generate a pulse-coded driver output signal that is transmitted to a receiver interface pin RX, processing the pulse-coded driver output signal with an input comparator to generate a pulse-coded comparator output signal, processing the pulse-coded comparator output signal using a pulse decoder to generate a DME-encoded PMA input signal in which timing asymmetries caused by processing at the receiver comparator and/or output driver have been eliminated, and then processing DME-encoded PMA input signal at a digital PHY circuit in the Ethernet PHY.

6. 发明申请

US20230077620A1 CONTROLLER AREA NETWORK TRANSCEIVER 有权
公开(公告)号：US20230077620A1
公开(公告)日：2023-03-16
申请号：US17447749
申请日：2021-09-15
申请人： NXP B.V.
发明人： Clemens Gerhardus Johannes de Haas
IPC分类号： H04L12/40 , H04L25/02
摘要： A Controller Area Network (CAN) transceiver includes a receiver configured to determine a voltage differential signal from analog signalling received from a CAN bus and configured to provide a digital output signal at a receiver output to a CAN controller based on the voltage differential signal. The receiver includes arming circuitry configured to place the receiver in an armed or unarmed state based on the voltage differential signal, a first threshold corresponding to a first CAN protocol, and a second threshold corresponding to a second CAN protocol. When the receiver is in the unarmed state, a first digital signal indicative of activity on the CAN bus is provided based on a comparison between the voltage differential signal and the first threshold, and when in the armed state, the first digital signal is provided based on comparisons between the voltage differential signal and each of the first and the second thresholds.

7. 发明授权

US11584314B2 Collision detection on a can bus 有权
公开(公告)号：US11584314B2
公开(公告)日：2023-02-21
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.

8. 发明申请

US20210226661A1 CONTROLLER AREA NETWORK CONTROLLER AND TRANSCEIVER 有权
公开(公告)号：US20210226661A1
公开(公告)日：2021-07-22
申请号：US17248226
申请日：2021-01-14
申请人： NXP B.V.
发明人： Clemens Gerhardus Johannes de Haas
IPC分类号： H04B1/40 , H04L12/40
摘要： A Controller Area Network, CAN, transceiver configured to be connected to a CAN bus comprising; a transmitter arrangement configured to transmit signalling on the CAN bus based on transmit data, configured to operate in a first or second transmission mode, the first transmission mode configured to transmit said signalling with a first property and the second transmission mode configured to transmit said signalling with a second, different, property; a receiver arrangement configured to receive signalling from the CAN bus; a receive output configured to provide received data to the CAN controller; and wherein the transmitter arrangement is configured to operate in one of the first or second transmission modes based on a determination that the transmit data is encoded with a first line code and otherwise operate in the other transmission modes, and wherein the transceiver includes a decoder configured to decode the first line code of the transmit data.

9. 发明授权

US09331865B2 Comparator circuit 有权
标题翻译：比较器电路
公开(公告)号：US09331865B2
公开(公告)日：2016-05-03
申请号：US14095036
申请日：2013-12-03
申请人： NXP B.V.
发明人： Clemens Gerhardus Johannes de Haas
IPC分类号： H04L12/40 , H04L12/12 , H03K5/24 , H03K19/0185
CPC分类号： H04L12/40039 , H03K5/2472 , H03K19/018521 , H04L12/12
摘要： Various aspects are directed to communications, as may be implemented in an automotive network. An input transistor has a gate coupled to an input port and to a voltage-limiting circuit, connected between the gate and a power rail. The voltage-limiting circuit presents a voltage to the gate corresponding to a voltage on the input port and less than the supply voltage level, and clamps a gate-source voltage of the transistor. In a power-saving mode, current is blocked on the current path when the input port is at the supply or ground voltage levels. When the input port transitions away from the threshold voltage, the apparatus transitions to a wake-up mode in which current is no longer blocked in the current path and in which a wake-up signal is provided based on the voltage at the input port and a bias voltage.
摘要翻译：各种方面都针对通信，如可以在汽车网络中实现的。输入晶体管具有耦合到输入端口和连接在栅极和电力轨道之间的限压电路的栅极。电压限制电路向输入端口的电压施加与栅极相对应的电压，并且小于电源电压电平，并钳位晶体管的栅极 - 源极电压。在省电模式下，当输入端口处于电源或接地电压电平时，电流在电流路径上被阻塞。当输入端口转移离开阈值电压时，装置转换到唤醒模式，其中电流不再被阻塞在电流路径中，并且基于输入端口处的电压提供唤醒信号，偏置电压。

10. 发明申请

US20150156032A1 COMPARATOR CIRCUIT 有权
标题翻译：比较器电路
公开(公告)号：US20150156032A1
公开(公告)日：2015-06-04
申请号：US14095036
申请日：2013-12-03
申请人： NXP B.V.
发明人： Clemens Gerhardus Johannes de Haas
IPC分类号： H04L12/40 , H04L12/12
CPC分类号： H04L12/40039 , H03K5/2472 , H03K19/018521 , H04L12/12
摘要： Various aspects are directed to communications, as may be implemented in an automotive network. An input transistor has a gate coupled to an input port and to a voltage-limiting circuit, connected between the gate and a power rail. The voltage-limiting circuit presents a voltage to the gate corresponding to a voltage on the input port and less than the supply voltage level, and clamps a gate-source voltage of the transistor. In a power-saving mode, current is blocked on the current path when the input port is at the supply or ground voltage levels. When the input port transitions away from the threshold voltage, the apparatus transitions to a wake-up mode in which current is no longer blocked in the current path and in which a wake-up signal is provided based on the voltage at the input port and a bias voltage.
摘要翻译：各种方面都针对通信，如可以在汽车网络中实现的。输入晶体管具有耦合到输入端口和连接在栅极和电力轨道之间的限压电路的栅极。电压限制电路向输入端口的电压施加与栅极相对应的电压，并且小于电源电压电平，并钳位晶体管的栅极 - 源极电压。在省电模式下，当输入端口处于电源或接地电压电平时，电流在电流路径上被阻塞。当输入端口转移离开阈值电压时，装置转换到唤醒模式，其中电流不再被阻塞在电流路径中，并且基于输入端口处的电压提供唤醒信号，偏置电压。

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