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公开(公告)号：US4750170A
公开(公告)日：1988-06-07
申请号：US799521
申请日：1985-11-19
CPC分类号： H04M3/005 , H04M11/062 , H04M3/007 , H04M3/18 , H04Q1/14
摘要： A line access apparatus for in-band communication includes a line coupler that functions as a high voltage isolation device and has a resonant frequency out of the signal transmission band. A carrier signal of about the resonant frequency is modulated at an in-band frequency to convey information across the line coupler.
摘要翻译： 用于带内通信的线路接入装置包括用作高电压隔离装置的线耦合器，并且具有从信号传输频带出来的谐振频率。 关于谐振频率的载波信号以带内频率被调制以在线耦合器上传送信息。
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公开(公告)号：US4654869A
公开(公告)日：1987-03-31
申请号：US774780
申请日：1985-09-11
申请人： Mark G. Smith , Karen J. French , David A. Zeller, Jr. , Franklin Hargrave , Francisco A. Middleton
发明人： Mark G. Smith , Karen J. French , David A. Zeller, Jr. , Franklin Hargrave , Francisco A. Middleton
CPC分类号： H04M11/002
摘要： An apparatus for collecting and forwarding encoded information includes a source of power maintained from the output port thereof to provide power to the source of encoded informations whereby a local subscriber is not required to supply power to such encoders via the AC mains to his premises.
摘要翻译： 用于收集和转发编码信息的装置包括从其输出端口保持的电源，以向编码信息源提供电力，由此本地用户不需要经由AC电源向其处所向这种编码器供电。
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公开(公告)号：US4646342A
公开(公告)日：1987-02-24
申请号：US774783
申请日：1985-09-11
申请人： Franklin Hargrave , David A. Zeller, Jr. , Mark G. Smith , William L. Hull, III , Francisco A. Middleton
发明人： Franklin Hargrave , David A. Zeller, Jr. , Mark G. Smith , William L. Hull, III , Francisco A. Middleton
CPC分类号： H04M3/28
摘要： A test trunk access controller includes a test trunk interface controller accessed by a subscriber line assigned to a service provider, or other remote metering facility, and a test trunk interface device inter-connecting the test trunk controller with the test trunk device of a local telephone switch.
摘要翻译： 测试中继线接入控制器包括由分配给服务提供商或其他远程测量设备的用户线访问的测试中继接口控制器，以及将测试中继控制器与本地电话的测试中继设备相互连接的测试中继接口设备 开关。
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公开(公告)号：US4782480A
公开(公告)日：1988-11-01
申请号：US799522
申请日：1985-11-19
摘要： A telephone line access apparatus includes a first stage for providing high voltage protection and a second stage filter in series with the first stage. The first and second stages are incorporated within a housing that is adapted to plug into an existing main distribution frame of a telephone central office.
摘要翻译： 电话线接入装置包括用于提供高电压保护的第一级和与第一级串联的第二级滤波器。 第一和第二阶段结合在适于插入电话中心局的现有主分配框架的壳体内。
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公开(公告)号：US4821319A
公开(公告)日：1989-04-11
申请号：US47586
申请日：1987-05-05
摘要： A communication system for use with a single pair of externally provided telephone wires and a single pair of in-house wires for the provision of full intercom services and/or PABX type features to a plurality of subsets includes a line interface module connected between the single pair of externally supplied wires and a single pair of in-house wires. In addition, each subset is provided with a station adapter module between it and the single pair of in-house wires.
摘要翻译： 用于与一对外部提供的电话线和用于向多个子集提供全对讲服务和/或PABX类型特征的单对内部线路的通信系统包括连接在单个电话线之间的线路接口模块 一对外部电源线和一对内部电线。 此外，每个子集在其与单对内部线之间设置有站适配器模块。
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公开(公告)号：US4575840A
公开(公告)日：1986-03-11
申请号：US595120
申请日：1984-03-30
CPC分类号： H04Q1/146 , H04M3/18 , H04Q2201/12
摘要： An access device is provided for a main distribution frame of a telephone system. The access device, which may be structured as a set of access blocks, is positioned between surge protection modules and their corresponding vertical input terminal block so as to make electrical contact with the subscriber telephone line without interruption of the array of harnesses which couple together the various terminal blocks of the main distribution frame. A printed circuit contained within each of the access blocks comprises conductors which contact feed-through terminals of the access block, the conductor coupling these terminals to multiplexers which provide for the selective coupling of messages from the subscriber lines to the subscriber line of a message receiving station.
摘要翻译： 为电话系统的主配线架提供接入装置。 可以被构造为一组接入块的接入设备被定位在浪涌保护模块和它们对应的垂直输入端子块之间，以便与用户电话线电接触，而不会中断线束阵列， 主配线架的各种接线端子。 每个接入块中包含的印刷电路包括接触接入块的馈通端子的导体，将这些端子耦合到多路复用器的导体，该多路复用器提供从用户线路到用户线路的消息接收的选择性耦合 站。
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公开(公告)号：US4656651A
公开(公告)日：1987-04-07
申请号：US774113
申请日：1985-09-09
摘要： A system for providing remote services and maintenance functions includes a voice subsystem adapted to receive voice and DTMF signals that can be used to control the execution of a plurality of service and maintenance tests. The system also includes a programmed control subsystem that provides voice based response and conveyance of results of such maintenance services and tests to field personnel.
摘要翻译： 用于提供远程服务和维护功能的系统包括适于接收可用于控制多个服务和维护测试的执行的语音和DTMF信号的语音子系统。 该系统还包括一个编程的控制子系统，可以为现场人员提供基于语音的响应和传送这些维护服务和测试的结果。
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公开(公告)号：US4583215A
公开(公告)日：1986-04-15
申请号：US779291
申请日：1985-09-19
CPC分类号： H04Q1/146 , H04M3/18 , H04Q2201/12
摘要： A system for accessing telephone lines at a main distribution frame includes an access block positioned between a vertical input terminal block and protector modules of the distribution frame. The access block has a set of terminals which make direct connection between the corresponding terminals of the input and protector modules and, in addition, includes a printed circuit with individual conductors coupled to respective ones of the access block terminals. Multiplexing circuitry connects with the printed circuit for sequential coupling of messages among the various telephone lines passing through the access block. Additional multiplexing circuitry is located on the distribution frame at a site remote from the input blocks and is coupled to the multiplexers associated with each of the input blocks to scan through the output signals of each of the multiplexers. The scanning operation also includes the operation of providing control and command signals to the multiplexers for sequencing through all of the telephone lines.
摘要翻译： 用于在主配线架上接入电话线的系统包括位于配线架的垂直输入端子块和保护器模块之间的接入块。 接入块具有一组端子，其在输入和保护器模块的相应端子之间直接连接，并且另外包括印刷电路，其中各个导体耦合到相应的接入块端子。 多路复用电路与印刷电路连接，用于在通过接入块的各种电话线之间顺序耦合消息。 额外的多路复用电路位于远离输入块的位置处的分配框架上，并且耦合到与每个输入块相关联的多路复用器，以扫描每个多路复用器的输出信号。 扫描操作还包括向多路复用器提供控制和命令信号以便通过所有电话线排序的操作。
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公开(公告)号：US4602362A
公开(公告)日：1986-07-22
申请号：US667527
申请日：1984-11-02
CPC分类号： H04M11/002 , H04M11/068 , H04Q11/04
摘要： A system for transporting data between equipment connected to a subscriber telephone line and a provider of services connects with subscriber telephone lines at a central office of a telephone company. The system includes a set of first multiplexers which are coupled to individual ones of the subscriber lines at a point between the cross-switching of the central office and the subscriber premises. Output signals of the first multiplexers fan into a second multiplexer. Bidirectional communication is provided between each of the multiplexers and the subscriber equipment, and also between the second multiplexer and the service provider via a line scanner which generates command signals for the operation of the first and second multiplexers. The first multiplexers, the second multiplexer, the line scanner and a host computer of the service provider can be located at a distance from each other and may be coupled together by communication links which permit the bidirectional flow of data.
摘要翻译： 用于在连接到用户电话线的设备和服务提供商之间传输数据的系统与电话公司的中心局的用户电话线连接。 该系统包括一组第一多路复用器，其在中心局与用户驻地的交叉切换之间的点处耦合到各个用户线路。 第一多路复用器的输出信号风扇进入第二多路复用器。 在每个多路复用器和订户设备之间以及在第二多路复用器和服务提供商之间经由生成用于第一和第二多路复用器的操作的命令信号的行扫描器提供双向通信。 第一多路复用器，第二多路复用器，线扫描器和服务提供商的主计算机可以位于彼此一定距离处，并且可以通过允许数据的双向流动的通信链路耦合在一起。
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公开(公告)号：US4665516A
公开(公告)日：1987-05-12
申请号：US648542
申请日：1984-09-07
CPC分类号： H04M11/002
摘要： A data transport system connects with a telephone system for communication of data via subscriber telephone lines to a provider of data services. Connection of multiplexing circuitry to a set of subscriber lines is accomplished at a main distribution frame by adapters or access blocks set between arc suppressors and a terminal block. The multiplexing circuitry is activated by signals of a line scan unit which, in turn, cooperates with a host computer associated with the provider of data services. This arrangement bypasses the central switching equipment. The data may be transmitted out of voice band, if desired, to enable simultaneous voice and data transmission. Passive, active and interactive data can be transmitted by the data transport system.
摘要翻译： 数据传输系统与电话系统连接，用于经由用户电话线将数据通信到数据服务的提供者。 通过在电弧抑制器和端子块之间设置的适配器或接入块在主分配框架处实现多路复用电路与一组用户线路的连接。 复用电路由线扫描单元的信号激活，线扫描单元又与与数据服务提供者相关联的主计算机进行协作。 这种安排绕过中央交换设备。 如果需要，数据可以从语音频带发送，以实现语音和数据传输的同时传输。 被动，主动和交互的数据可以由数据传输系统传输。
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