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    Fail-safe logic circuitry for vehicle transportation control
    14.
    发明授权
    Fail-safe logic circuitry for vehicle transportation control 失效

    公开(公告)号：US3927852A

    公开(公告)日：1975-12-23

    申请号：US45670974

    申请日：1974-04-01

    Applicant: GEN SIGNAL CORP

    Inventor： SIBLEY HENRY C

    IPC: B61L29/28 ,  B61L1/02

    CPC classification number: B61L29/288

    Abstract: Logic circuitry in a vehicle transportation system, such logic circuitry providing fail-safe operation utilizing solid-state circuits. The logic circuitry is described relative to control of a highway crossing indicator, such circuitry selectively producing a most restrictive output signal or a least restrictive output signal in accordance with traffic conditions to the crossing indicator. A vital signal is generated that is characteristically differentiated from other signals in the circuit. The vital signal is serially transferred through gate circuits by corresponding enable signals to each gate circuit. When and only when the vital signal has been transferred along a path of gate circuits and through the logic circuitry, the crossing indicator assumes a least restrictive mode of operation.

    Occupancy detector for vehicle control systems
    15.
    发明授权
    Occupancy detector for vehicle control systems 失效
    车辆控制系统的占用检测器

    公开(公告)号：US3907238A

    公开(公告)日：1975-09-23

    申请号：US47139074

    申请日：1974-05-20

    Applicant: GEN SIGNAL CORP

    Inventor： SIBLEY HENRY C ,  AUER JR JOHN H ,  SMITH WILLIS R

    IPC: B61L3/12 ,  B61L21/10 ,  B61L27/00 ,  B61L21/06

    CPC classification number: B61L21/10 ,  B61L3/121 ,  B61L27/0038

    Abstract: Vehicles are operated over a plurality of zones. Devices are provided on the vehicle for demarcating the ends thereof and wayside markers at an entering boundary, for each zone, responsive to the passage of each end of the vehicle, and assuming first and second conditions respectively in accordance with encountering an odd or even number of demarcating devices. Occupancy registration is responsive jointly to the first condition for the next two wayside markers in advance of the vehicle and the second condition for its associated marker for cancelling the occupancy indication. Occupancy registration is additionally responsive to the direction of traffic along the guideway by detecting vehicle presence as it enters the zone from either direction.

    Abstract translation: 车辆在多个区域上操作。 设备设置在车辆上，用于在进入边界处划分其端部和路边标记，对于每个区域，响应于车辆的每个端部的通过，并且分别根据遇到奇数或偶数假设第一和第二条件 的分界线。 占用登记与车辆之前的下一个两路标志的第一条件共同响应，以及用于取消占用指示的相关标记的第二条件。 通过在从任一方向进入区域时检测车辆存在，乘客注册额外地响应于沿着导轨的交通方向。

    Track communication system for continuous rail
    19.
    发明授权
    Track communication system for continuous rail 失效
    连续轨道通讯系统

    公开(公告)号：US3666217A

    公开(公告)日：1972-05-30

    申请号：US3666217D

    申请日：1970-05-04

    Applicant: GEN SIGNAL CORP

    Inventor： SIBLEY HENRY C

    IPC: B61L23/16 ,  B61L23/30

    CPC classification number: B61L23/168

    Abstract: A communication system for continuous rail track layouts has been provided including a plurality of center fed track circuits. The improvement comprises train occupancy communication means including a plurality of track transmitters each selectively tuned to one of two transmission frequencies alternately coupled to the rails at spaced intervals representing the center of the track circuits and a plurality of receivers each selectively responsive to the transmitter frequencies coupled to the rails at the ends of each of these track circuits for receiving signals from the associated transmitter. Means coupled to the receiver generates an occupancy signal when the communication is cut off for one transmitter and its associated receiver by a vehicle shunt. Control communication means is also included wherein a plurality of control transmitters are each selectively tuned to one of two transmission frequencies different from the track transmission frequencies and are alternately coupled to the rails at each of the adjacent ends of the first track circuits representing a second set of center fed track circuits. A plurality of receivers again each selectively responsive to the transmitter frequencies are coupled to the rails at the center of each of the second set of track circuits for receiving signals from its associated transmitter. Means coupled to each control receiver generates a control signal in accordance with the control receiver signals. The occupancy communication means and the control communication means both simultaneously are capable of transmitting signals along the layout.

    Abstract translation: 已经提供了一种用于连续轨道布局的通信系统，其包括多个中心馈送轨道电路。 该改进包括火车占用通信装置，其包括多个轨道发射机，每个轨道发射机选择性地被调谐到以表示轨道电路的中心的间隔交替地耦合到轨道的两个发射频率之一，以及多个接收机，每个接收机选择性地响应发射机频率耦合 到这些轨道电路中的每一个的端部处的轨道，用于从相关联的发射器接收信号。 当通过车辆分流器对一个发射机及其相关联的接收机进行通信切断时，耦合到接收器的装置产生占用信号。 还包括控制通信装置，其中多个控制发射机各自选择性地调谐到与磁道传输频率不同的两个传输频率中的一个，并且交替耦合到表示第二组的第一磁道电路的每个相邻端处的轨道 的中心馈电轨道电路。 每个选择性地响应于发射机频率的多个接收机被耦合到在第二组轨道电路中的每一个的轨道上的轨道，用于从其相关联的发射机接收信号。 耦合到每个控制接收器的装置根据控制接收器信号产生控制信号。 占用通信装置和控制通信装置同时能够沿布局发送信号。

    Digital code receiving system
    20.
    发明授权
    Digital code receiving system 失效
    数字代码接收系统

    公开(公告)号：US3568149A

    公开(公告)日：1971-03-02

    申请号：US3568149D

    申请日：1968-10-15

    Applicant: GEN SIGNAL CORP

    Inventor： SIBLEY HENRY C

    IPC: B61L3/00 ,  B61L3/24 ,  G08C19/28 ,  G08C25/00 ,  H03K13/34 ,  H04L1/10 ,  H04Q3/02

    CPC classification number: B61L3/246 ,  G08C19/28 ,  G08C25/00

    Abstract: A digital code receiving system is provided wherein received bits of a digital code are applied as serial inputs to a shift register, and parallel readout of the shift register is applied to a plurality of decoders, each decoder being adapted to recognize only a single code distinctive of that decoder. For code checking purposes, only codes having the same numbers of mark and space characters are used. Each decoder has first and second outputs delivered successively, the first output checks the proper elements of the code. This output then complements the shift register at an intermediate point in the bit period, and the same decoder delivers a second output if the register is fully complemented. A control device is rendered operable in response to the alternate first and second outputs of its associated decoder.

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