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公开(公告)号:US4686667A
公开(公告)日:1987-08-11
申请号:US697314
申请日:1985-02-01
申请人: Horst Ohnsorge
发明人: Horst Ohnsorge
CPC分类号: H04Q11/0478 , H04J2203/0028 , H04J2203/0089
摘要: A broadband integrated subscriber loop system is provided in accordance with the teachings of the present invention. A system is provided in which the subscribers are combined in groups (T1n1-T1n10) each of which is supplied via a single optical communication link. Over the optical waveguide (LWL) of this optical communication link, signals of the channels assigned to subscribers for various telecommunication services are transmitted on a multiplexed basis from the switching unit to an interface unit closely located to the subscribers of the group. In the interface unit the channels are separated and subscriber-assigned multiplexers (Mux 5) combine the channels assigned to a subscriber in accordance with the transmission capacity required into a subscriber time-division-multiplex signal. This signal is transmitted over a subscriber line in the form of a coaxial electric line (KL 1) to subscriber's taps, where the signals for terminals located at the top are separated via demultiplexers (Demux 3, Demux 4, Demux 5, Demux 6). Signals to be transmitted from a subscriber's terminals to the switching unit are combined in digital form (Mux 2, Mux 3, Mux 4), and a multiplexer (Mux 1) in the interface unit combines signals from all subscribers of the group into a back-channel multiplex signal which is transmitted to the switching unit over an optical communication link using the same or a second optical waveguide. In the switching unit, a demultiplexer (Demux 1) separates the received signals into the signals from the individual subscribers, and the signals of each subscriber are split up according to the subscriber's various telecommunications services. The system, including the terminals, is fully digital.
摘要翻译: 根据本发明的教导提供了宽带综合用户环路系统。 提供了一种系统,其中用户被组合成组(T1n1-T1n10),每个组经由单个光通信链路提供。 在该光通信链路的光波导(LWL)上,分配给用于各种电信业务的用户的信道的信号在多路复用的基础上从切换单元发送到紧密地位于组的用户的接口单元。 在接口单元中,信道被分离,用户分配多路复用器(Mux 5)根据用户时分复用信号所需的传输容量组合分配给用户的信道。 该信号以同轴电线(KL 1)的形式通过用户线路发送到订户的抽头,其中位于顶部的终端的信号通过解复用器(Demux 3,Demux 4,Demux 5,Demux 6)分离, 。 从用户终端发送到交换单元的信号以数字形式(MUX2,MUX3,MUX4)组合,并且接口单元中的多路复用器(MUX1)将来自该组的所有用户的信号组合到后面 信道复用信号,其通过使用相同或第二光波导的光通信链路发送到切换单元。 在切换单元中,解复用器(Demux1)将接收到的信号分离成来自各个用户的信号,并且每个用户的信号根据用户的各种电信服务被分离。 包括终端在内的系统是完全数字化的。
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公开(公告)号:US5058156A
公开(公告)日:1991-10-15
申请号:US405345
申请日:1989-09-11
申请人: Wolfgang Dietze
发明人: Wolfgang Dietze
IPC分类号: H04L25/05
CPC分类号: H04L25/05
摘要: According to the invention, for connections between terminals connected to different networks, the terminals intended for connection to the network having the higher capacity are so equipped that, alternatively (I, II), they could also operate at the network having the lower capacity. In these terminals as well as at the interface between the two networks, simple network interface devices (30, 60) are inserted which insert and extract the filler bits in a suitable manner.
摘要翻译: 根据本发明,为了连接到不同网络的终端之间的连接,旨在连接到具有较高容量的网络的终端装备得如此,或者(I,II),它们也可以在具有较低容量的网络上运行。 在这些终端中以及在两个网络之间的接口处,插入简单的网络接口设备(30,60),以适当的方式插入和提取填充位。
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公开(公告)号:US4776271A
公开(公告)日:1988-10-11
申请号:US860364
申请日:1986-05-06
CPC分类号: H05K3/1225 , B41C1/14 , B41F15/36 , G03F7/12
摘要: During silk-screen printing, the stencil (3) is stretched as a result of the pressure exerted by the squeeges (6) This results in a distorted pattern on the material (4) to be printed. To eliminate this error, the design (7') in the stencil (3) is predistorted in such a way that a distortion-free printed pattern (8') is obtained.
摘要翻译: 在丝网印刷期间,由于由刮板(6)施加的压力,模板(3)被拉伸,导致要印刷的材料(4)上的图案变形。 为了消除这个错误,模板(3)中的设计(7')被预失真,使得获得无失真的印刷图案(8')。
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