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    • 1. 发明授权
    • Remotely controlled apparatus for conditioning telephone line exclusive
of metallic DC bypass pair
    • 遥控装置用于调节电话线,不包括金属直流旁路对
    • US5115462A
    • 1992-05-19
    • US679934
    • 1991-04-03
    • Michael KennedyBen PierceAaron Chan
    • Michael KennedyBen PierceAaron Chan
    • H04M3/30
    • H04M3/30
    • A remotely controlled line conditioning apparatus is installed in the terminal where access to the telephone loop to be tested is readily available. Although a metallic bypass pair from the central office to the (remote) terminal may also be available, its presence and/or condition does not affect the ability of the apparatus to condition the line under test. The line conditioning apparatus includes a telephone line termination unit and an intelligent control unit. The telephone line termination unit has a telephone line access port to which a telephone line pair is selectively coupled, and is operative to controllably impart a selected one of a plurality of electrical signalling conditions to the telephone line pair under test. The control unit has a communication modem through which communication signals containing telephone line conditioning messages are coupled to and from the central office/remote terminal communication link. The control unit also includes a micro-controller, which is coupled to the modem, for generating telephone line unit control signals in response to line conditioning messages from a host unit located at the central office. Control signals generated by the micro-controller control the operation of the telephone line termination unit which conditions the telephone line pair.
    • 在终端中安装有远程控制的线路调节装置,其中容易获得要被测试的电话回路的接入。 虽然从中心局到(远程)终端的金属旁路对也可能可用,但其存在和/或状况不影响设备调节待测线路的能力。 线路调节装置包括电话线路终端单元和智能控制单元。 电话线路终端单元具有电话线路接入端口,电话线路对被选择性地耦合到该电话线路接入端口,并且可操作地将可选地将多个电信号状态中的一个电信号状况赋予被测电话线对。 控制单元具有通信调制解调器,通过该通信调制解调器,包含电话线路调理消息的通信信号通过该通信调制解调器耦合到中央局/远程终端通信链路。 控制单元还包括耦合到调制解调器的微控制器,用于响应于来自位于中心局的主机单元的线路调节消息而产生电话线路单元控制信号。 由微控制器产生的控制信号控制电话线路对的电话线终端单元的操作。
    • 3. 发明授权
    • Direct access test unit for central office
    • 中央办公室直接访问测试单元
    • US4841560A
    • 1989-06-20
    • US109164
    • 1987-10-16
    • Aaron ChanBen PierceLeslie Shafto
    • Aaron ChanBen PierceLeslie Shafto
    • H04M3/30H04M3/487
    • H04M3/30H04M3/487
    • A direct access test unit for enabling a craftsperson at a telephone facility remote with respect to a central office to test subscriber lines comprises a first access port coupled to an access line circuit, by way of which the remote telephone facility communicates with the telephone office in the course of testing subscriber lines, and a second access port coupled to a test trunk circuit by way of which a subscriber line is to be tested by the test unit. Coupled between the first and second access ports is a processor-controlled subscriber line test/interface arrangement which is responsive to (tone) dial signals, generated by the remote telephone facility, and representative of a command to conduct a test of a selected one of a plurality of subscriber line circuits that are accessible by the test unit from the second access port, including the line circuit to which said remote telephone facility is connected, for accessing the subscriber line circuit via the second access port and conducting tests of the subscriber line circuit by way of the test trunk circuit. Stored within the memory of the processor which controls the operation of the test unit are voice message menus, each in a respectively different language (e.g. English, Spanish) the contents of which are controllably accessed and synthesized for transmission to the craftsperson via the first access port. The voice messages include instructions for guiding the craftsperson in the course of carrying out a test of a selected subscriber line.
    • 直接访问测试单元,用于使远程相对于中心局的电话设备的技工能够测试用户线路包括耦合到接入线路电路的第一接入端口,远程电话设备通过该接入线路与电话局进行通信 测试用户线路的过程,以及耦合到测试中继电路的第二接入端口,通过该测试中继电路将由测试单元测试用户线路。 耦合在第一和第二接入端口之间的是处理器控制的用户线测试/接口布置,其响应于由远程电话设备产生的(音调)拨号信号,并且代表对所选择的一个接入端口进行测试的命令 多个用户线电路,可由测试单元从第二接入端口接入,包括所述远程电话设备所连接的线路电路,用于经由第二接入端口接入用户线电路,并进行用户线的测试 通过测试中继电路的电路。 存储在控制测试单元的操作的处理器的存储器内的是语音消息菜单,每个语言消息菜单分别以不同的语言(例如英语,西班牙语)进行,其内容被可控地访问和合成,以便经由第一访问传送给技工 港口。 语音消息包括在对所选择的用户线进行测试的过程中引导技工的指令。