Station for power line access data system
    1.
    发明授权
    Station for power line access data system 失效
    电站线路接入数据系统

    公开(公告)号:US3944723A

    公开(公告)日:1976-03-16

    申请号:US530129

    申请日:1974-12-05

    申请人: Kouan Fong

    发明人: Kouan Fong

    摘要: A central station is described which acts as an interface between a two-way communication system superimposed on a power distribution network and a data processing computer. Information from the computer is converted into control signals for activating various sequences of sub-tasks by the communication system. Information from communication system is temporarily stored, converted into a suitable code, and transferred to the data processing computer by way of a teletypewriter terminal. Provision is also made for receiving and responding to priority signals from the system.

    摘要翻译: 描述了作为叠加在配电网络上的双向通信系统与数据处理计算机之间的接口的中心站。 来自计算机的信息被转换成用于通过通信系统激活各种子任务序列的控制信号。 来自通信系统的信息被暂时存储,转换成合适的代码,并通过电传打字机终端传送到数据处理计算机。 还提供了接收和响应来自系统的优先级信号。

    Power line access data system
    2.
    发明授权
    Power line access data system 失效
    电力线路接入数据系统

    公开(公告)号:US3973240A

    公开(公告)日:1976-08-03

    申请号:US529998

    申请日:1974-12-05

    申请人: Kouan Fong

    发明人: Kouan Fong

    IPC分类号: H04B3/58 H04M11/04 H04Q11/00

    CPC分类号: H04B3/58

    摘要: A two-way communication system is disclosed utilizing power transmission lines as the transmission medium. The system is a multilevel repeater system in which each repeater has a unique address. The lowest level repeaters poll the terminal stations connected thereto in time multiplex. Transmission over the system is in the form of tone codes, each level preferably utilizing a different set of tones from the next higher or lower level.

    摘要翻译: 公开了利用电力传输线作为传输介质的双向通信系统。 该系统是一个多级中继器系统,其中每个中继器具有唯一的地址。 最低级别的中继器在时间多路复用中轮询连接到其上的终端站。 系统上的传输是音调代码的形式,每个级别优选地利用来自下一个较高或较低级别的一组不同的音调。

    Signal repeater for power line access data system
    3.
    发明授权
    Signal repeater for power line access data system 失效
    用于电力线接入数据系统的信号中继器

    公开(公告)号:US3973087A

    公开(公告)日:1976-08-03

    申请号:US529999

    申请日:1974-12-05

    申请人: Kouan Fong

    发明人: Kouan Fong

    IPC分类号: H04B3/58 H04L27/26 H04B3/38

    CPC分类号: H04L27/26 H04B3/58

    摘要: A signal repeater is described for relaying information in a two-way communication system superimposed on a power distribution network. The repeater senses signals passing in either direction in the system, translates the received signal to a different band or group frequencies, and transmits the frequency translated information. Provision is made for address-coding the repeaters so that, when connected in several levels, a particular path can be selected through the various levels. Provision is also made for a signal having priority in a system of such repeaters.

    摘要翻译: 描述了信号中继器,用于在叠加在配电网络上的双向通信系统中中继信息。 中继器感测在系统中沿任一方向通过的信号,将接收的信号转换成不同的频带或组频率,并发送频率转换的信息。 提供了对中继器进行地址编码,以便在多个级别连接时,可以通过各种级别选择特定的路径。 还提供了在这种中继器的系统中具有优先权的信号。

    Receiver filtering out both systematic pulse noise and random noise
    4.
    发明授权
    Receiver filtering out both systematic pulse noise and random noise 失效
    接收机滤除系统脉冲噪声和随机噪声

    公开(公告)号:US3944932A

    公开(公告)日:1976-03-16

    申请号:US530128

    申请日:1974-12-05

    申请人: Kouan Fong

    发明人: Kouan Fong

    CPC分类号: H03G11/00 H03D1/04 H04B1/10

    摘要: A continuous wave (c.w.) receiver is described comprising an amplitude limiting section, a commutating filter section, peak detecting means, and a threshold device. The receiver detects the presence or absence of an incoming signal over a very narrow, adjustable bandwidth. The limiting section clips the signal and noise at a predetermined amplitude and, in combination with the commutating filter, reduces the effect of noise, particularly impulse noise. The peak detector selects the highest output from the commutating filter and, in combination with the commutating filter, performs a pseudo-synchronization function when the received signal and an internal signal are not synchronized exactly.

    摘要翻译: 描述包括幅度限制部分,换向滤波器部分,峰值检测装置和阈值装置的连续波(c.w.)接收机。 接收机通过非常窄的可调节带宽检测输入信号的存在或不存在。 限制部分以预定的幅度剪辑信号和噪声,并且与换向滤波器组合减少了噪声,特别是脉冲噪声的影响。 峰值检测器选择换向滤波器的最高输出,并且与换向滤波器结合,当接收信号和内部信号不准确同步时,执行伪同步功能。