subscriber card, or by unit for connecting subscriber, and switching center for concentrating the internet frames

• 1. 用户卡、用户连接单元、及可汇集因特网帧的交换中心 [P] . 中国专利： CN1477838A . 2004-02-25
• 2. 用户卡、用户连接单元、及可汇集因特网帧的交换中心 [P] . 中国专利： CN1249876A . 2000-04-05
• 3. SUBSCRIBER CARD, SUBSCRIBER CONNECTION UNIT, AND SWITCHING CENTER FOR CONCENTRATING INTERNET FRAMES [P] . 法国专利： FR2773296A1 . 1999-07-02

  机译： 用户卡，用户连接单元和用于集中Internet框架的交换中心

• 4. Card subscriber unit subscriber connection and switching control that lets concentrate Internet frames. [P] . ES2189114T3 . 2003-07-01

  机译： 卡订户单元的订户连接和切换控制可集中Internet框架。

• 5. Subscriber card, subscriber connecting unit and relay centre for concentrating internet frames [P] . 美国专利： US6674747B1 . 2004-01-06

  机译： 订户卡，订户连接单元和中继中心，用于集中互联网框架

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