Teletypewriter line keyer with switching current regulator
    1.
    发明授权
    Teletypewriter line keyer with switching current regulator 失效
    带切换电流调节器的电报打线机

    公开(公告)号:US4355403A

    公开(公告)日:1982-10-19

    申请号:US44652

    申请日:1979-06-01

    IPC分类号: H04L13/16 G05F1/40 H03K1/14

    CPC分类号: H04L13/16

    摘要: A teletypewriter line keyer with a switching current regulator responsive to a floating, loop current powered voltage comparator used as a loop current monitor. The line keyer, which may have positive and negative line current keying, uses a single current monitor to control positive and negative current regulators responsive to the positive and negative keying respectively. The switching regulators operate within a relatively narrow band centered around the nominal signaling current, with filtering being provided for ripple control. The circuit may also include a keying detector and open loop detector for system monitoring.

    摘要翻译: 具有响应于用作环路电流监视器的浮动环路电流电压比较器的开关电流调节器的电传打字机线路键控器。 可以具有正和负线电流键控的线路键控器使用单个电流监视器来分别响应于正和负键控来控制正和负电流调节器。 开关稳压器在以标称信号电流为中心的相对较窄的频带内工作,并提供滤波用于纹波控制。 电路还可以包括用于系统监视的键控检测器和开环检测器。

    Distributed processing telex exchange
    2.
    发明授权
    Distributed processing telex exchange 失效
    分布式处理电传交换

    公开(公告)号:US4292465A

    公开(公告)日:1981-09-29

    申请号:US92066

    申请日:1979-11-06

    CPC分类号: H04L12/50

    摘要: A distributed processing telex switch having different levels of processor control to handle the calls between terminations connected to the exchange is disclosed. A common control processor occupies the highest level of processor control and function as the system-wide manager. Next below common control is a plurality of master control processors which function to switch the command data between common control and the lower levels of processor control, and to handle the conversation data generated by each of the terminations connected to the exchange. Each master control processor controls a predetermined number of termination from among all of the terminations connected to the exchange. Connected to each master control processor is a plurality of group control processors which control the flow of data to and from a second predetermined number of terminations from among the terminations controlled by each master control processor. The group control processors occupy the next lower level of processor control from the master control level. Associated with each group control processor is a line control processor that cooperates with its associated group control processors to produce the signaling sequences in the terminations and to handle the conversation data from and to the terminations. The line control processor occupy the lowest level of processor control.

    摘要翻译: 公开了具有不同级别的处理器控制以处理连接到交换机的终端之间的呼叫的分布式处理电传交换机。 一个共同的控制处理器占用最高级别的处理器控制,并且作为全系统的管理器运行。 下面的公共控制是多个主控制处理器,其用于在公共控制和较低级别的处理器控制之间切换命令数据,并且处理由连接到交换机的每个终端产生的会话数据。 每个主控制处理器从连接到交换机的所有终端中控制预定数量的终止。 连接到每个主控制处理器的是多个组控制处理器,其控制与每个主控制处理器控制的终端之间的数据往返于第二预定数量的终端的数据流。 组控制处理器占据主控制级别的下一级处理器控制。 与每个组控制处理器相关联的是线路控制处理器,其与其相关联的组控制处理器协作以在终端中产生信令序列并且处理来自终端的终端的会话数据。 线路控制处理器占用最低级别的处理器控制。

    Circuit for handling conversation data in a distributed processing telex
exchange
    3.
    发明授权
    Circuit for handling conversation data in a distributed processing telex exchange 失效
    用于在分布式处理电传交换中处理会话数据的电路

    公开(公告)号:US4291196A

    公开(公告)日:1981-09-22

    申请号:US92424

    申请日:1979-11-06

    IPC分类号: H04L12/50 H04L11/00 H04Q3/54

    CPC分类号: H04L12/50

    摘要: A circuit for the systematic handling of conversation data from a calling party to a called party for use in a distributed processing telex exchange is disclosed. The customer terminations connected to the exchange are divided into a predetermined number of groups of terminations having a predetermined number of terminations in each group. Associated with each group of terminations is a frame memory which has memory capacity for storing a single bit of conversation data from every termination connected to the exchange. Associated with each frame memory is a vector memory which has a memory location associated with each termination in a group. Each vector memory location contains a frame memory address that addresses the location in frame memory containing the conversation data to be forwarded down to the termination associated with the current vector memory address. In addition, each vector memory location contains an active bit which is included with the conversation data forwarded to the called party termination to indicate that a call is in progress for that termination.

    摘要翻译: 公开了一种用于系统地处理来自呼叫方的会话数据到用于分布式处理电传交换中的被叫方的电路。 连接到交换机的客户终端被划分为在每个组中具有预定数量的终止的预定数量的终端组。 与每组终端相关联的是具有存储器容量的帧存储器,用于从连接到交换机的每个终端存储单个比特的会话数据。 与每个帧存储器相关联的是具有与组中的每个终止相关联的存储器位置的向量存储器。 每个向量存储器位置包含帧存储器地址,该帧存储器地址包含帧存储器中的位置,其中包含将被转发到与当前向量存储器地址相关联的终端的会话数据。 此外,每个向量存储器位置包含被转发到被叫方终端的会话数据中包括的活动比特,以指示正在进行该终止的呼叫。