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    METHOD AND APPARATUS FOR COMBINING VOICE LINE CARD AND XDSL LINE CARD FUNCTIONS
    31.
    发明申请
    METHOD AND APPARATUS FOR COMBINING VOICE LINE CARD AND XDSL LINE CARD FUNCTIONS 审中-公开
    用于组合语音线卡和XDSL线卡功能的方法和装置

    公开(公告)号：WO01005134A1

    公开(公告)日：2001-01-18

    申请号：PCT/US2000/018983

    申请日：2000-07-12

    IPC: H04J1/02 ,  H04B3/02 ,  H04L27/00 ,  H04M3/00 ,  H04M11/00 ,  H04M11/06

    CPC classification number: H04M3/007 ,  H04M3/005 ,  H04M11/062

    Abstract: An integrated line card for providing an analog termination for both POTS and xDSL signals that represent the appropriate impedances at xDSL frequencies for the xDSL signals and appropriate impedances at POTS frequencies for POTS signals. The line card comprises a front end for coupling combined POTS and xDSL transceiver circuits to a telephone line at a single termination and an impedance generator (58) responsive to the frequency range of the POTS and xDSL circuits for generating the appropriate impedances on the line at xDSL frequencies for xDSL signals and the appropriate impedances at POTS frequencies for POTS signals, such that the signals are coupled to the card without the use of a splitter. Preferably, the xDSL circuits and the POTS circuits share a common driver (52) for driving signals onto the loop.

    Abstract translation: 一个集成线路卡，用于为POTS和xDSL信号提供模拟终端，这些信号代表xDSL信号的xDSL频率的适当阻抗，以及POTS信号POTS频率下的适当阻抗。 线卡包括用于在单个终端处将组合的POTS和xDSL收发器电路耦合到电话线的前端，以及响应于POTS和xDSL电路的频率范围的阻抗发生器（58），用于在线路上产生适当的阻抗 xDSL信号的xDSL频率和POTS信号的POTS频率处的适当阻抗，使得信号在不使用分路器的情况下耦合到卡。 优选地，xDSL电路和POTS电路共享用于将信号驱动到环路上的公共驱动器（52）。

    METHOD FOR COMPENSATING CURRENT VARIABLES OF A SUBSCRIBER CIRCUIT WHICH HAVE BEEN MODIFIED BY DISTURBANCE VARIABLES
    32.
    发明申请
    METHOD FOR COMPENSATING CURRENT VARIABLES OF A SUBSCRIBER CIRCUIT WHICH HAVE BEEN MODIFIED BY DISTURBANCE VARIABLES 审中-公开
    对于资产扰动的畸变电流法值的用户记录

    公开(公告)号：WO9938308A3

    公开(公告)日：1999-09-23

    申请号：PCT/DE9900066

    申请日：1999-01-13

    Applicant: SIEMENS AG ,  KRIMMER ROLAND ,  DOLLINGER RUDOLF

    Inventor： KRIMMER ROLAND ,  DOLLINGER RUDOLF

    IPC: H04M3/22 ,  H04M3/00 ,  H04M3/30 ,  H04M19/00

    CPC classification number: H04M3/30 ,  H04M3/005

    Abstract: The invention relates to a compensation and current measurement method for a subscriber circuit of a digital telephone exchange said circuit consisting of a high-threshold part (HV) and a low-threshold part (NV). The inventive process is integrated into the low-threshold part. According to the invention, a disturbance variable which has been determined in advance and stored in the low-threshold part (NV) with a reversed sign is added to the currents which are measured e.g. for adjusting the power supply or the reliability performance of the subscriber circuit. The current can then be measured based on current values which have already been corrected.

    Abstract translation: 一种用于在高电压部分（HV）和数字电话交换机的低压部分（NV）现有用户线均衡和电流测量的方法集成到所述低电压部分。 流，例如 用于供应电流或用户线路的功能的调整被测量，是存储在与所述相反符号的低电压部分中的先前确定的，并加入扰动变量。 这确保了电流测量已修正的电流值可以做到的。

    SUBSCRIBER LINE INTERFACE CIRCUIT
    33.
    发明申请
    SUBSCRIBER LINE INTERFACE CIRCUIT 审中-公开
    订户线接口电路

    公开(公告)号：WO9927704A3

    公开(公告)日：1999-08-26

    申请号：PCT/FI9800901

    申请日：1998-11-17

    Applicant: NOKIA TELECOMMUNICATIONS OY ,  NORDSTROEM CAJ ,  HURME HARRI

    Inventor： NORDSTROEM CAJ ,  HURME HARRI

    IPC: H04M3/00 ,  H04M19/00

    CPC classification number: H04M19/005 ,  H04M3/005

    Abstract: An output stage of a subscriber line interface circuit comprises two amplifiers, a first (111) one of which is configured to operate as an inverting amplifier (negative amplification) and a second (110) one as a non-inverting amplifier (positive amplification). Each amplifier has an output connected to a respective wire (a, b) in a subscriber line. A common reference voltage (Vref) and a common control voltage (Vc) are supplied to each amplifier (110, 111). The reference voltage (Vref) is used for setting the average voltage of the subscriber line. The control voltage (Vc) level determines the offset of the amplifier output voltages (Vb, Va) from the average voltage. The difference between the amplifier output voltages provides the subscriber line supply voltage which, together with subscriber loop resistance, determines loop current (Iloop). Loop current is measured (R1, R2, 117, 118) separately from each subscriber line wire and the measurement results are summed, a possible common mode interference being thereby cancelled. If loop current is too high, a control member (126) changes the control voltage, with a predetermined time constant, to a direction which reduces the amplifier output voltages (Va, Vb). The voltage difference between the subscriber line wires (a, b) thus becomes smaller and the loop current increases. When the measured loop current reaches a desired value, the control voltage (Vc) produced by the control member (126) sets at the voltage level reached. As a result, a very simple and inexpensive subscriber line power supply and loop current control is obtained.

    Abstract translation: 用户线接口电路的输出级包括两个放大器，其中的第一（111）被配置为作为反相放大器（负放大）和第二（110）作为非反相放大器（正放大）工作， 。 每个放大器具有连接到用户线中的相应线（a，b）的输出。 公共参考电压（Vref）和公共控制电压（Vc）被提供给每个放大器（110,111）。 参考电压（Vref）用于设置用户线的平均电压。 控制电压（Vc）电平决定了放大器输出电压（Vb，Va）与平均电压的偏移。 放大器输出电压之间的差异提供用户线电源电压，连同用户回路电阻确定回路电流（Iloop）。 每个用户线路分别测量回路电流（R1，R2，117，118），并将测量结果相加，从而可能消除共模干扰。 如果回路电流过高，则控制部件（126）以预定的时间常数将控制电压改变为减小放大器输出电压（Va，Vb）的方向。 因此，用户线路（a，b）之间的电压差变小，并且环路电流增加。 当测量的回路电流达到期望值时，由控制构件（126）产生的控制电压（Vc）设定在达到的电压水平。 结果，获得了非常简单和便宜的用户线电源和回路电流控制。

    FAST AND NOISE-INSENSITIVE LOAD STATUS DETECTION
    34.
    发明申请
    FAST AND NOISE-INSENSITIVE LOAD STATUS DETECTION 审中-公开
    快速和无噪声负载状态检测

    公开(公告)号：WO99014922A1

    公开(公告)日：1999-03-25

    申请号：PCT/US1998/019208

    申请日：1998-09-12

    IPC: G01R27/08 ,  H04M3/00 ,  H04M3/30

    CPC classification number: H04M3/30 ,  G01R27/08 ,  H04M3/005 ,  H04M3/2209

    Abstract: Method and apparatus for detecting whether load coils are attached to a telephone line. A stimulus waveform having multiple frequency components is applied to the line. The current and voltage at the near end of the line are coherently sampled and transformed to the frequency domain. The frequency spectra are used to compute auto and cross power spectra of the current and voltage. These power spectra are then used to compute the impedance on the line as well as a coherence function that indicates the extent to which the computed impedance was influenced by noise. If the coherence values indicate that the computed impedance is sufficiently reliable, load coils are detected by finding peaks in the magnitude of the impedance function or sign changes in the phase of the impedance function. Calibration, offset adjustments and ensemble smoothing are used to increase the accuracy of the results. The computation is fast because computing the spectra avoids the needs for individual measurements at multiple frequencies. The computation is accurate because it is not sensitive to noise.

    Abstract translation: 用于检测负载线圈是否连接到电话线的方法和装置。 具有多个频率分量的刺激波形被施加到线路。 线路近端的电流和电压被相干采样并转换到频域。 频谱用于计算电流和电压的自动和交叉功率谱。 然后使用这些功率谱来计算线路上的阻抗以及指示计算阻抗受噪声影响的程度的相干函数。 如果相干值表示计算出的阻抗足够可靠，则通过在阻抗函数的相位中发现阻抗函数的大小或符号变化的峰值来检测负载线圈。 校准，偏移调整和整体平滑用于提高结果的准确性。 计算速度快，因为计算光谱避免了在多个频率下单独测量的需要。 计算准确，因为它对噪声不敏感。

    COMMUNICATION SYSTEM
    35.
    发明申请
    COMMUNICATION SYSTEM 审中-公开
    通信系统

    公开(公告)号：WO98039900A1

    公开(公告)日：1998-09-11

    申请号：PCT/DE1998/000632

    申请日：1998-03-03

    IPC: H04M3/00 ,  H04M3/40

    CPC classification number: H04M3/005 ,  H04M3/40

    Abstract: The invention relates to a communication system, comprising a transmission network (1) for transmitting user data and control data, at least one user terminal (8, 12, 16) with an input element (9, 13, 18) for inputting call numbers, at least one user terminal unit (6, 10) which has an adjustable transmission characteristic and is switched between a user terminal and said transmission network, a recognition unit (33) which is connected to said transmission network, for recognizing certain call number constellations and giving certain control signals corresponding to call numbers, and a control unit (31, 32) which is switched between said recognition unit (33) and said user connection unit, for adjusting the transmission characteristic of said user terminal depending on the control signals provided by said recognition unit.

    Abstract translation: 具有Übertragungssnetzwerk（1），用于与至少一个输入装置（9，13，18），用于输入具有用户终端（8，12，16），其具有用户终端之间的至少一个可调节的传输特性的数字发送用户数据和控制数据的通信系统 （9，13，18）和所述传输网络（1）连接的用户线单元（6，10），具有连接到传输网络识别单元（33），用于检测一定数目的星座和用于传送相应的控制信号的某些数星座的源极，和与所述间 检测部（33）和用于调节根据由所述检测单元的控制信号提供的信息的用户线单元的透过特性的用户线路单元连接的控制单元（31，32）。

    EXTENDED CHIP SELECT RESET APPARATUS AND METHOD
    36.
    发明申请
    EXTENDED CHIP SELECT RESET APPARATUS AND METHOD 审中-公开
    扩展芯片选择复位设备和方法

    公开(公告)号：WO1997004575A1

    公开(公告)日：1997-02-06

    申请号：PCT/US1996008637

    申请日：1996-06-04

    Applicant: ADVANCED MICRO DEVICES, INC.

    Inventor： ADVANCED MICRO DEVICES, INC. ,  BAQAI, Imran ,  MILLER, Merle, L.

    IPC: H04M03/00

    CPC classification number: G06F1/24 ,  H04M3/005

    Abstract: An extended chip select reset circuit to generate a reset signal for a device, such as a SLAC, using the chip select line. When the chip select line has been maintained in an active state for at least a predetermined amount of time corresponding to a plurality of data clocks, then a reset signal is generated in order to reset the device. The plurality of data clocks is more than a number of data clocks used to clock in a word of data to the device in a normal mode of operation.

    Abstract translation: 扩展芯片选择复位电路使用芯片选择线来产生诸如SLAC的器件的复位信号。 当芯片选择线已经保持在与多个数据时钟相对应的至少预定时间量的激活状态时，产生复位信号以复位器件。 多个数据时钟多于多个数据时钟，用于在正常操作模式下将数据字数据提供给器件。

    PRIVATE EXCHANGE POTS LINE INTERFACES
    37.
    发明申请
    PRIVATE EXCHANGE POTS LINE INTERFACES 审中-公开
    私人交换点线接口

    公开(公告)号：WO1995021498A1

    公开(公告)日：1995-08-10

    申请号：PCT/US1995001333

    申请日：1995-02-02

    Applicant: ADAK COMMUNICATIONS CORPORATION

    Inventor： ADAK COMMUNICATIONS CORPORATION ,  GOODRICH, Earl, R., II ,  BAYERL, Thomas, R.

    IPC: H04M01/00

    CPC classification number: H04M3/005

    Abstract: An analog interface (20) providing POTS device operation from a subscriber premises private exchange (28) connected to a digital network includes an input connected to a ringing signal supply having a DC offset, wherein the input is selectively connected to the ring lead of an analog port (58, 64). A switch is coupled to the input and to the ring lead for selectively connecting the ringing signal to the ring lead. A sensor is coupled across the impedance, the sensor detecting no DC signal during ringing generation when a POTS subscriber terminal is on-hook. However, the sensor detects a DC signal across the impedance when the subscriber terminal device is off-hook. Thus, the sensor detects ring trip and is coupled to a switch in order to disconnect the input lead from the ring lead wherein ring trip is detected.

    Abstract translation: 从连接到数字网络的用户住宅专用交换机（28）提供POTS设备操作的模拟接口（20）包括连接到具有DC偏移的振铃信号电源的输入，其中所述输入选择性地连接到 模拟端口（58,64）。 开关耦合到输入端和环形引线，用于选择性地将振铃信号连接到环形引线。 传感器耦合在阻抗上，传感器在POTS用户终端挂机时在振铃生成期间不检测直流信号。 然而，当用户终端设备摘机时，该传感器检测跨阻抗的直流信号。 因此，传感器检测环路跳闸并耦合到开关，以便将输入引线与环形导线断开，其中检测到环路跳闸。

    VOICE MESSAGING FOR PAY PHONE TELEPHONE SYSTEMS
    40.
    发明申请
    VOICE MESSAGING FOR PAY PHONE TELEPHONE SYSTEMS 审中-公开
    用于支付电话电话系统的语音消息

    公开(公告)号：WO1990013961A1

    公开(公告)日：1990-11-15

    申请号：PCT/US1990001954

    申请日：1990-04-10

    Applicant: UNISYS CORPORATION

    Inventor： UNISYS CORPORATION ,  CARLSON, Shaun, Eric

    IPC: H04M03/50

    CPC classification number: H04M17/00 ,  H04M1/27 ,  H04M3/005 ,  H04M3/487 ,  H04M3/533 ,  H04M15/00 ,  H04M2201/34

    Abstract: A voice message system for a pay phone telephone network interposes an Intercept Processing Subsystem (25) in the line connections (22) between the pay telephones (11) and the central office (10). A Voice Processing Subsystem (16) is connected to the central office switch (14) by a trunk (17). A caller at a pay station enters a called telephone number (55) which is stored in the Intercept Processing Subsystem (25, 26). The Intercept Processing Subsystem monitors the line connection to determine if the called telephone remains on-hook for a predetermined number of ring tones or is busy for a predetermined number of busy tones (82). If the ring no answer or busy condition maintains, the Intercept Processing Subsystem reduces the volume of the ring or busy tones on the line connection and superimposes a voice announcement thereon offering the voice message service to the caller (83). If the caller enters an acceptance key sequence or coin deposit (84), the Intercept Processing Subsystem splits the line connection (101), sends a Thank You message to the calling telephone (104) and speed dials the Voice Processing Subsystem (109). When the Voice Processing Subsystem answers (114), the Intercept Processing Subsystem sends a voice prompt to the calling telephone explaining that at the tone a voice message may be entered and delivery thereof will be attempted at predetermined intervals for a predetermined time (115). Simultaneously, with sending the voice prompt to the caller, the Intercept Processing Subsystem transmits the call parameters to the voice Processing Subsystem (115) utilizing a protocol with interleaved validity acknowledgement signals from the Voice Processing Subsystem. If the transmission of the call parameters is valid (116), the Intercept Processing Subsystem reestablishes the line connection between the calling telephone and the central office switch and the voice message from the caller is passed through the Intercept Processing Subsystem to the Voice Processing Subsystem for recording thereat (118) for subsequent delivery to the called station (124).

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