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8 条记录 (耗时 0.014 秒)

    Programmable bit-collision adjustment circuitry for a bi-directional serial communication link
    1.
    发明授权
    Programmable bit-collision adjustment circuitry for a bi-directional serial communication link 失效
    用于双向串行通信链路的可编程位冲突调整电路

    公开(公告)号：US5859851A

    公开(公告)日：1999-01-12

    申请号：US631482

    申请日：1996-04-12

    申请人： Paul M. Young ,  Gregory L. Williamson

    发明人： Paul M. Young ,  Gregory L. Williamson

    IPC分类号： H04L12/413

    CPC分类号： H04L12/40013

    摘要： A digital communication circuit that avoids bit collisions between an external communication device and a controller that communicate to each other through a bi-directional serial communication link is disclosed. The digital communication circuit includes digital circuitry that receives and transmits a digital communication signal. A detection circuit detects when a digital communication signal is being received. And delay circuitry receives the transmitted digital communication signal and responsively produces a delay signal to delay the detection of the received digital communication signal.

    摘要翻译： 公开了一种避免通过双向串行通信链路彼此通信的外部通信设备和控制器之间的比特冲突的数字通信电路。 数字通信电路包括接收和发送数字通信信号的数字电路。 检测电路检测何时正在接收数字通信信号。 并且延迟电路接收所发送的数字通信信号，并且响应地产生延迟信号以延迟所接收的数字通信信号的检测。

    Fault tolerant serial communications network
    2.
    发明授权
    Fault tolerant serial communications network 失效
    容错串行通信网络

    公开(公告)号：US5187709A

    公开(公告)日：1993-02-16

    申请号：US742218

    申请日：1991-08-06

    申请人： Gregory L. Williamson ,  Larry E. Kendrick ,  Weldon L. Phelps

    发明人： Gregory L. Williamson ,  Larry E. Kendrick ,  Weldon L. Phelps

    IPC分类号： B60R16/02 ,  B60R16/03 ,  H04L12/437

    CPC分类号： B60R16/0315 ,  H04L12/437

    摘要： A communications network is adapted to provide communication between control modules on a vehicle. Each control module includes a first and second transceiver. A control module checks for the presence of a data message from another control module before transmitting a data message. If there is no other data message present, the control module transmits the data message around the network in both directions using the first and second transceivers. The other control modules receive the data message from the previous control module and pass the data message to the next control module in the network.

    摘要翻译： 通信网络适于在车辆上的控制模块之间提供通信。 每个控制模块包括第一和第二收发器。 在发送数据消息之前，控制模块检查来自另一控制模块的数据消息的存在。 如果没有其他数据消息存在，则控制模块使用第一和第二收发器在两个方向上围绕网络发送数据消息。 其他控制模块从前一个控制模块接收数据消息，并将数据消息传递给网络中的下一个控制模块。

    Reverse voltage protection circuit
    4.
    发明授权
    Reverse voltage protection circuit 失效
    反向电压保护电路

    公开(公告)号：US5546264A

    公开(公告)日：1996-08-13

    申请号：US362335

    申请日：1994-12-22

    申请人： Gregory L. Williamson ,  John P. Hoffman

    发明人： Gregory L. Williamson ,  John P. Hoffman

    IPC分类号： H02H11/00 ,  H02H3/18

    CPC分类号： H02H11/003

    摘要： An apparatus for providing reverse protection to an electronic circuit is provided. The electronic circuit has a positive input terminal and a negative input terminal. The positive input terminal is coupled to a positive battery terminal via the apparatus. The negative input terminal is connected to a negative battery terminal. The apparatus includes a MOSFET transistor having a gate terminal, a drain terminal and a source terminal. One of the drain terminal and the source terminal is connected to the positive battery terminal and an other of the drain terminal and the source terminal is connected to the positive input terminal. One end of a resistor is connected to the gate terminal. One end of a pair of Zener diodes is connected to the gate terminal. The other end is connected to the source terminal.

    摘要翻译： 提供了一种用于向电子电路提供反向保护的装置。 电子电路具有正输入端和负输入端。 正输入端子经由该装置耦合到正电池端子。 负输入端子连接到负极端子。 该装置包括具有栅极端子，漏极端子和源极端子的MOSFET晶体管。 漏极端子和源极端子之一连接到正极端子，另一个漏极端子和源极端子连接到正极端子。 电阻器的一端连接到栅极端子。 一对齐纳二极管的一端连接到栅极端子。 另一端连接到源终端。

    Driver circuit with diagnostics and over voltage protection
    6.
    发明授权
    Driver circuit with diagnostics and over voltage protection 失效
    具有诊断和过压保护的驱动电路

    公开(公告)号：US5467240A

    公开(公告)日：1995-11-14

    申请号：US129506

    申请日：1993-09-30

    申请人： Gregory L. Williamson ,  Mark R. Hawkins ,  William J. Tate

    发明人： Gregory L. Williamson ,  Mark R. Hawkins ,  William J. Tate

    IPC分类号： H02H11/00 ,  H05B39/02 ,  H02H7/20

    CPC分类号： H02H11/005 ,  H02H11/006 ,  H05B39/02

    摘要： The present invention provides a general purpose driver circuit. The driver circuit is connected to a load. The driver circuit includes a controller for producing a control signal indicative of a desired output current. The driver circuit generates an output current having a magnitude responsive to the magnitude of the control signal. The driver circuit produces a system voltage feedback signal and an output voltage feedback signal and responsively performs output load condition diagnostics.

    摘要翻译： 本发明提供通用驱动电路。 驱动电路连接到负载。 驱动器电路包括用于产生指示期望的输出电流的控制信号的控制器。 驱动器电路产生具有响应于控制信号的幅度的幅度的输出电流。 驱动器电路产生系统电压反馈信号和输出电压反馈信号，并且响应地执行输出负载状况诊断。

    Diagnostic hardware for serial datalink
    8.
    发明授权
    Diagnostic hardware for serial datalink 失效
    用于串行DATALINK的诊断硬件

    公开(公告)号：US5124990A

    公开(公告)日：1992-06-23

    申请号：US520437

    申请日：1990-05-08

    申请人： Gregory L. Williamson

    发明人： Gregory L. Williamson

    IPC分类号： H04L12/40 ,  H04L12/42

    CPC分类号： H04L12/40006 ,  H04L12/42 ,  H04L12/2602 ,  H04L2012/40273 ,  H04L43/00 ,  Y04S40/168

    摘要： Full diagnostic capability is provided in a serial datalink network having a plurality of control modules. Each control module includes a differential receiver for providing noise immunity and a transmitter having a positive line driver and a negative line driver. Positive and negative transmission wires connect differential receivers to the positive and negative line drivers. Circuits sense the occurrence of a short circuit condition between the positive transmission wires and ground and between the negative transmission wires and supply voltage. Overcurrents in the positive and negative transmission wires are also detected.

    摘要翻译： 在具有多个控制模块的串行数据链路网络中提供了全面的诊断功能。 每个控制模块包括用于提供抗噪声的差分接收器和具有正线驱动器和负线驱动器的发射器。 正负传输线将差分接收器连接到正负线驱动器。 电路感测到正的传输线与地之间以及在负的传输线和电源电压之间发生短路状态。 还检测到正和负传输线中的过电流。