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    • 1. 发明专利
    • How to power up the line powered data access arrangement, including a line powered codec and line powered codec devices and line powered codec in order to power up
    • 空值
    • JP3681971B2
    • 2005-08-10
    • JP2000309803
    • 2000-10-10
    • ルーセント テクノロジーズ インコーポレーテッド
    • チュー ウェイリンユーゲン ホレンバッチ ケイスハーマン フィッシャー ジョナサンレイモンド ラトレル ドナルドエス.トス マイケルエー.スミス レーン
    • H02J7/00H04M1/00H04M11/00H04M19/00H04M19/08
    • H04M19/005Y02D70/00Y02D70/1222
    • A line powered data access arrangement (DAA) is disclosed which adaptively allows proper operation with power supplied from a telephone line as conditions warrant, while at the same time satisfying the relevant requirements of many countries. In the line powered codec, a startup procedure for the international line powered codec uses register settings, e.g., country-specific register settings, which are powered and maintained from the low voltage side (e.g., from the PC or modem side) of the line powered codec. In this way, even during low line power conditions the programmed state of the line powered codec can be maintained, thus a default condition will not necessarily returned to by the line powered codec upon reset due to a power loss in the telephone line. In another aspect, a charge storage device such as a charge capacitor is charged from a charge pump formed from a differential clock signal from the low voltage side. A current and voltage detection module in the line powered codec is always powered from the telephone line. Upon detection of an off-hook signal or a power down condition, the current detection module determines if/when the current and voltage on the telephone line is sufficient to power certain circuits on the line powered codec. If sufficient power is not present, the line powered codec does not power up. However, the line powered codec will power up if sufficient current is detected. In another aspect, a plurality of power rails may be provided. A first power rail may be associated with the line power, a second power rail may be associated with a low voltage side power source, e.g., a charge storage device. A third (and other) power rails may be switchably connected to either the first power rail or second power rail as line power conditions and on-hook/off-hook conditions warrant.
    • 公开了一种线路数据访问安排(DAA),其适应性地允许根据条件允许从电话线路提供的电力进行适当的操作,同时满足许多国家的相关要求。 在线路供电的编解码器中,国际线路供电编解码器的启动过程使用寄存器设置,例如国家特定的寄存器设置,其由线路的低电压侧(例如,从PC或调制解调器侧)供电和维护 电源编解码器。 以这种方式,即使在低功率电源条件下,也可以维护线路供电的编解码器的编程状态,因此由于电话线路中的功率损耗,默认条件不一定由线路供电的编解码器复位。 另一方面,诸如充电电容器的电荷存储装置从由低电压侧的差分时钟信号形成的电荷泵充电。 线路供电编解码器中的电流和电压检测模块始终通过电话线供电。 当检测到摘机信号或断电状态时,电流检测模块确定电话线路上的电流和电压是否足以对线路供电的编解码器上的某些电路供电。 如果没有足够的电源,线路供电的编解码器不会上电。 然而,如果检测到足够的电流,则线路供电的编解码器将上电。 另一方面,可以设置多个电源轨。 第一电力轨可以与线路电力相关联,第二电力轨道可以与低电压侧电源(例如电荷存储装置)相关联。 第三(和其他)电源轨可以切换地连接到第一个电源轨或第二个电源轨,因为线路电源条件和挂机/摘机条件值得。
    • 4. 发明专利
    • A method and apparatus for holding through a low power state between the line powered codec and call bridge the line powered codec in an off-hook state
    • 空值
    • JP3977587B2
    • 2007-09-19
    • JP2000309804
    • 2000-10-10
    • ルーセント テクノロジーズ インコーポレーテッド
    • ハーマン フィッシャー ジョナサンレイモンド ラトレル ドナルドエス.トス マイケルジー.ウィリアムス マイケルエー.スミス レーン
    • H04M1/738H04M19/00
    • H04M19/001Y02D70/00Y02D70/1222
    • A line powered data access arrangement (DAA) is disclosed which adaptively allows proper operation with power supplied from a telephone line as conditions warrant, while at the same time satisfying the relevant requirements of many countries. In the line powered codec, a startup procedure for the international line powered codec uses register settings, e.g., country-specific register settings, which are powered and maintained from the low voltage side (e.g., from the PC or modem side) of the line powered codec. In this way, even during low line power conditions the programmed state of the line powered codec can be maintained, thus a default condition will not necessarily returned to by the line powered codec upon reset due to a power loss in the telephone line. In another aspect, a charge storage device such as a charge capacitor is charged from a charge pump formed from a differential clock signal from the low voltage side. A current and voltage detection module in the line powered codec is always powered from the telephone line. Upon detection of an off-hook signal or a power down condition, the current detection module determines if/when the current and voltage on the telephone line is sufficient to power certain circuits on the line powered codec. If sufficient power is not present, the line powered codec does not power up. However, the line powered codec will power up if sufficient current is detected. In another aspect, a plurality of power rails may be provided. A first power rail may be associated with the line power, a second power rail may be associated with a low voltage side power source, e.g., a charge storage device. A third (and other) power rails may be switchably connected to either the first power rail or second power rail as line power conditions and on-hook/off-hook conditions warrant.
    • 公开了一种线路数据访问安排(DAA),其适应性地允许根据条件允许从电话线路提供的电力进行适当的操作,同时满足许多国家的相关要求。 在线路供电的编解码器中,国际线路供电编解码器的启动过程使用寄存器设置,例如国家特定的寄存器设置,其由线路的低电压侧(例如,从PC或调制解调器侧)供电和维护 电源编解码器。 以这种方式,即使在低功率电源条件下,也可以维护线路供电的编解码器的编程状态,因此由于电话线路中的功率损耗,默认条件不一定由线路供电的编解码器复位。 另一方面,诸如充电电容器的电荷存储装置从由低电压侧的差分时钟信号形成的电荷泵充电。 线路供电编解码器中的电流和电压检测模块始终通过电话线供电。 当检测到摘机信号或断电状态时,电流检测模块确定电话线路上的电流和电压是否足以对线路供电的编解码器上的某些电路供电。 如果没有足够的电源,线路供电的编解码器不会上电。 然而,如果检测到足够的电流,则线路供电的编解码器将上电。 另一方面,可以设置多个电源轨。 第一电力轨可以与线路电力相关联,第二电力轨道可以与低电压侧电源(例如电荷存储装置)相关联。 第三(和其他)电源轨可以切换地连接到第一个电源轨或第二个电源轨,因为线路电源条件和挂机/摘机条件值得。