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    • 1. 发明申请
    • DUAL-BAND LINE INTERFACE CIRCUIT CAPABLE OF MULTI-BAND COMMUNICATION
    • 双带通信双线接口电路
    • WO2009045446A3
    • 2009-12-23
    • PCT/US2008011378
    • 2008-10-01
    • 2WIRE INCSCHLEY-MAY JAMES TWIESE BRIAN R
    • SCHLEY-MAY JAMES TWIESE BRIAN R
    • H04M9/08
    • H04M11/062
    • In an embodiment, a DSL communication device comprising a line interface circuit is disclosed. The line interface circuit includes a hybrid circuit to interface the communication device to a communication line, a lowpass transmit filter to pass signals in a first frequency band, and a highpass transmit filter to pass signals in a second frequency band, where the second frequency band is higher in frequency than the first frequency band. The outputs of the highpass and lowpass filters are coupled in parallel to the communication line. The lowpass and highpass filters as well as the low and highpass transformers are optimized for their frequency bands. Further, the edges of the low and high frequency bands are sufficiently separated to reduce interference from the other frequency band. These factors, in part, allow a multiple tone communication device to be capable of operating in multiple modes of operation with multiple DSL varieties.
    • 在一个实施例中,公开了一种包括线路接口电路的DSL通信设备。 线路接口电路包括用于将通信设备连接到通信线路的混合电路,用于传递第一频带中的信号的低通滤波器和用于传递第二频带中的信号的高通发射滤波器,其中第二频带 频率高于第一频带。 高通滤波器和低通滤波器的输出端与通信线并联。 低通和高通滤波器以及低通和高通变压器针对其频段进行了优化。 此外,低频带和高频带的边缘被充分分离以减少来自另一个频带的干扰。 这些因素部分地允许多音通信设备能够在多种DSL品种的多种操作模式下操作。
    • 3. 发明申请
    • METHODS AND APPARATUSES TO PROVIDE A BACK UP POWER SUPPLY FOR A NETWORK INTERFACE DEVICE
    • 为网络接口设备提供备用电源的方法和设备
    • WO2007056197A2
    • 2007-05-18
    • PCT/US2006043060
    • 2006-11-03
    • 2WIRE INCHINMAN BRIANSCHLEY-MAY JAMES T
    • HINMAN BRIANSCHLEY-MAY JAMES T
    • H04M1/00H04M9/00
    • H04M19/08
    • Various methods, apparatuses, and systems in which a back up power supply is provided to a network interface device are described. In one embodiment, an apparatus includes a network interface device (NID) located outside a building and a power supply unit located inside the building. The power supply unit has one or more ports that couple via a phone line to the NID to provide a power signal to the NID. The apparatus further includes a direct current (DC) back up power unit located in the NID. The DC back up power unit provides back up power to the NID. The NID is configured to periodically switch between receiving the power signal from the power supply unit and the DC back up power unit even when no fault condition exists in the power supply unit.
    • 描述了将备用电源提供给网络接口装置的各种方法,装置和系统。 在一个实施例中,设备包括位于建筑物外部的网络接口设备(NID)和位于建筑物内部的电源单元。 电源单元具有通过电话线耦合到NID的一个或多个端口,以向NID提供电力信号。 该装置还包括位于NID中的直流(DC)备份功率单元。 直流备用电源单元为NID提供备用电源。 NID被配置为即使在电源单元中没有故障条件时,也可以在接收来自电源单元的电源信号和DC备份电源单元之间周期性地切换。
    • 4. 发明申请
    • LINE DRIVERS WITH EXTENDED LINEARITY
    • 线性驱动器具有扩展的线性
    • WO2007038085A3
    • 2009-05-07
    • PCT/US2006036462
    • 2006-09-19
    • 2WIRE INCSCHLEY-MAY JAMES TANGELL RICHARD BARRY
    • SCHLEY-MAY JAMES TANGELL RICHARD BARRY
    • H04M1/00H04M9/00
    • H03F3/45H03F1/34H03F2203/45138H03F2203/45528
    • Line drivers with extended linearity are described herein. In one embodiment, shown in Fig.4, an example of a line driver includes, but is not limited to, a first amplifier (401)having a first input, a second amplifier (402) having a second input, the first and second amplifiers driving a load of a communication line, and a trans-conductance stage (403 and 404) device coupled to the first and second amplifiers. The trans-conductance stage device is configured to sense a first error voltage across the first input of the first amplifier and to provide a first feedback to the second input of the second amplifier. The trans-conductance stage device is configured to sense a second error voltage across the second input of the second.
    • 这里描述了具有延长线性度的线路驱动器。 在图4所示的一个实施例中,线路驱动器的示例包括但不限于具有第一输入的第一放大器(401),具有第二输入的第二放大器(402),第一和第二 驱动通信线路的负载的放大器以及耦合到第一和第二放大器的跨导电路(403和404)装置。 跨导级装置被配置为感测跨越第一放大器的第一输入端的第一误差电压并且向第二放大器的第二输入端提供第一反馈。 跨导级装置被配置为感测跨越第二输入的第二误差电压。
    • 7. 发明申请
    • METHOD AND APPARATUS FOR COMMUNICATING BETWEEN DEVICES HAVING NO COMMON ELECTRICAL GROUND
    • 用于在没有通用电气接地的设备之间进行通信的方法和装置
    • WO2007123651A3
    • 2008-03-06
    • PCT/US2007007870
    • 2007-03-28
    • 2WIRE INCSCHLEY-MAY JAMES THENDERSON MICHAEL
    • SCHLEY-MAY JAMES THENDERSON MICHAEL
    • H04L25/02H04L25/03H04L25/493
    • H04L25/0268H04L25/0284H04L25/03828H04L25/4915
    • Various methods, apparatuses, and systems are described in which devices having no common electrical ground communicate. In at least certain embodiments, an apparatus includes a transformer block to communicate a plurality of data signals and a synchronous clock signal between a first device with a first ground reference and a second device with a second ground reference over a data communication link. The first device sends the plurality of data signals to a modulator block having one or more Boolean logic gates that receive each data signal in combination with the synchronous clock signal. The modulator block sends a plurality of modulated data signals corresponding to the plurality of data signals to the transformer block. The transformer block sends the plurality of modulated data signals and the synchronous clock signal to the second device to provide the data communication link between devices having different ground references.
    • 描述了各种方法,装置和系统,其中没有公共电接地的设备通信。 在至少某些实施例中,装置包括用于在具有第一接地参考的第一设备与通过数据通信链路的第二接地参考的第二设备之间传送多个数据信号和同步时钟信号的变压器块。 第一设备将多个数据信号发送到具有一个或多个布尔逻辑门的调制器块,该布尔逻辑门与同步时钟信号相结合地接收每个数据信号。 调制器块将与多个数据信号对应的多个调制数据信号发送到变压器块。 变压器块将多个调制数据信号和同步时钟信号发送到第二设备,以在具有不同接地参考的设备之间提供数据通信链路。
    • 8. 发明申请
    • METHODS AND APPARATUSES TO PROVIDE FAULT MONITORING FOR A NETWORK INTERFACE DEVICE
    • 用于为网络接口设备提供故障监视的方法和设备
    • WO2007056230A3
    • 2007-10-18
    • PCT/US2006043110
    • 2006-11-03
    • 2WIRE INCSCHLEY-MAY JAMES THINMAN BRIAN
    • SCHLEY-MAY JAMES THINMAN BRIAN
    • G06F15/173
    • H04M1/24H04M19/08
    • Various methods, apparatuses, and systems in which fault monitoring is provided to a network interface device are described. In one embodiment, an apparatus includes a network interface device (NID) located outside a building and a power supply unit located inside the building. The power supply unit has one or more ports that couple via a phone line to the NID to provide a power signal to the NID. The apparatus further includes a monitor circuitry located in the power supply unit. The monitor circuitry monitors the power signal received by the NID via the phone line. The monitor circuitry checks for a fault condition of at least one phone device coupled to the phone line when the power signal changes by a predetermined amount.
    • 描述了向网络接口设备提供故障监视的各种方法,设备和系统。 在一个实施例中,一种装置包括位于建筑物外部的网络接口设备(NID)和位于建筑物内部的电源单元。 电源单元具有一个或多个通过电话线连接到NID的端口,以向NID提供电源信号。 该设备还包括位于电源单元中的监控电路。 监视器电路通过电话线监视由NID接收的电力信号。 当功率信号改变预定量时,监测电路检查耦合到电话线的至少一个电话设备的故障状况。