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    • 1. 发明授权
    • Subscriber line driver and termination
    • 用户线路驱动和终止
    • US06782096B1
    • 2004-08-24
    • US09439933
    • 1999-11-12
    • Gordon BremerChuck CostonEd ThoenesWilliam L. BettsThomas J. BingelRafael Martinez
    • Gordon BremerChuck CostonEd ThoenesWilliam L. BettsThomas J. BingelRafael Martinez
    • H04M100
    • H04L25/028H04L5/06H04L25/03343H04M11/062
    • A subscriber line driver (SLD) is provided for the continuous and automatic transformation of the characteristics of a communication system signal so that the signal conforms to a power spectral distribution (PSD) standard. The signal is transformed by the SLD which may increase (amplify) portions of the signal to a predefined specification, decrease (attenuate) portions of the signal to a predefined specification, and/or frequency modulate or filter the transmit signal frequencies to fit within the communication channel frequency bandwidth as defined by a predefined frequency band. After modification by the SLD, the transformed communication signal is injected (transmitted) into a communication transmission line. An SLD device can be employed in a variety of communication systems such as a public telephony system, a private branch exchange (PBX), a coaxial cable system, a fiber optic system, a microwave system, a radio communication system or the like. In the preferred embodiment, the SLD device operates in connection with a telephony system local loop which is operated as a digital subscriber loop (DSL). The SLD has an infinite input impedance at all frequencies. Addition of a parallel resister can enable the design engineer to set the transmission system terminating impedance to any desired value. This SLD can also be implemented in connection with a telephony system central office (CO) or a PBX.
    • 提供用户线驱动器(SLD)用于连续和自动地变换通信系统信号的特性,使得信号符合功率谱分布(PSD)标准。 信号被SLD变换,SLD可以将信号的部分增加(放大)到预定义的规范,将信号的部分减少(衰减)到预定义的规范,和/或频率调制或滤波发射信号频率以适应 通信信道频带宽度由预定频带定义。 在通过SLD修改之后,将变换的通信信号注入(发送)到通信传输线中。 SLD设备可以用于诸如公共电话系统,私人交换机(PBX),同轴电缆系统,光纤系统,微波系统,无线电通信系统等各种通信系统中。 在优选实施例中,SLD设备与作为数字用户环路(DSL)操作的电话系统本地环路相连。 SLD在所有频率都有无限的输入阻抗。 添加并联电阻可以使设计工程师将传输系统的终端阻抗设置为任何所需的值。 该SLD还可以与电话系统中心局(CO)或PBX相连。
    • 8. 发明授权
    • Apparatus and method for user tone notification during data suspension or degradation
    • 数据暂停或降级过程中用户音调通知的装置和方法
    • US06307923B1
    • 2001-10-23
    • US09487699
    • 2000-01-19
    • Gordon BremerEd Thoenes
    • Gordon BremerEd Thoenes
    • H04M1100
    • H04M11/06
    • Apparatus and method for generating user warning signal during data transmission suspension or degradation, that allows an user to identify that parallel operation of plain old telephone system (POTS) and digital data communications equipment is either occurring or being attempted. More particularly, the user signal warning indicates the impact to the operation of a multiple channel data communications device as a result of the parallel operation with the POTS equipment. A multiple variable signal alerts the user to the parallel operation, the amount of degradation, the elapsed time of the degradation to data communications, and which user site is causing the degradation by the direction of the data traffic being impacted.
    • 在数据传输暂停或劣化期间产生用户警告信号的设备和方法,其允许用户识别普通老式电话系统(POTS)和数字数据通信设备的并行操作正在发生或被尝试。 更具体地,由于与POTS设备的并行操作,用户信号警告表示对多通道数据通信设备的操作的影响。 多个可变信号警告用户并行操作,退化量,数据通信的退化时间,以及哪个用户站点导致数据流量受到影响的方向的降级。
    • 10. 发明授权
    • Apparatus and method for user tone warning during data suspension or
degradation
    • 数据暂停或降级期间用户音警告的装置和方法
    • US06031897A
    • 2000-02-29
    • US14748
    • 1998-01-28
    • Gordon BremerEd Thoenes
    • Gordon BremerEd Thoenes
    • H04L29/08H04M11/06H04M11/00H04M1/00
    • H04M11/06
    • Apparatus and method for generating user warning signal during data transmission suspension or degradation, that allows an user to identify that parallel operation of plain old telephone system (POTS) and digital data communications equipment is either occurring, or being attempted. More particularly, the user signal warning indicates the impact to the operation of a multiple channel data communications device as a result of the parallel operation with the POTS equipment. A multiple variable signal alerts the user to the parallel operation, the amount of degradation, the elapsed time of the degradation to data communications, and which user site is causing the degradation by the direction of the data traffic being impacted.
    • 在数据传输暂停或劣化期间产生用户警告信号的装置和方法,其允许用户识别普通老式电话系统(POTS)和数字数据通信设备的并行操作正在发生或被尝试。 更具体地,由于与POTS设备的并行操作,用户信号警告表示对多通道数据通信设备的操作的影响。 多个可变信号警告用户并行操作,退化量,数据通信的退化时间,以及哪个用户站点导致数据流量受到影响的方向的降级。