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    • 2. 发明申请
    • RELAY SWITCHING CIRCUIT
    • 继电器开关电路
    • US20150281806A1
    • 2015-10-01
    • US14481668
    • 2014-09-09
    • HON HAI PRECISION INDUSTRY CO., LTD.
    • CHIH-CHENG HUANG
    • H04Q3/00H04L12/931
    • H04Q3/0008H04Q2213/13096H04Q2213/13305H04Q2213/1332
    • A relay switching circuit to route outgoing telephone calls between a VoIP and a landline and with a surge voltage protection includes a first relay, a second relay, a first control circuit, and a second control circuit. The first relay connects with a foreign exchange station (FXS) port and an FXS circuit to control a connection between the FXS port and the FXS circuit. The second relay connects with the first relay and a foreign exchange office (FXO) port to control a connection between the first relay and the FXO port. The first control circuit connects with a controller to control the first relay. The second control circuit connects with the controller to control the second relay.
    • 用于在VoIP和陆线之间路由输出电话呼叫和浪涌电压保护的继电器切换电路包括第一继电器,第二继电器,第一控制电路和第二控制电路。 第一个继电器与外汇站(FXS)端口和FXS电路连接,以控制FXS端口和FXS电路之间的连接。 第二个继电器与第一个继电器和一个外汇局(FXO)端口连接,以控制第一个继电器和FXO端口之间的连接。 第一控制电路与控制器连接以控制第一继电器。 第二控制电路与控制器连接以控制第二继电器。
    • 9. 发明授权
    • Switching systems
    • 开关系统
    • US08289127B2
    • 2012-10-16
    • US11711250
    • 2007-02-27
    • Jesse R. BankmanKimo Y. F. Tam
    • Jesse R. BankmanKimo Y. F. Tam
    • H03K17/00
    • H04Q3/521H04Q2213/1302H04Q2213/1304H04Q2213/13305H04Q2213/1332
    • Distributively associated with each output row of point cells or each subset of point cells in each output row is one or more of a: memory device for storing an address identifying a cell in its associated output row and a decoder device responsive to the memory device for actuating the associated enable circuit to operate the transconductance device of the identified cell; a bias device, and an output cascode device; and also disclosed as switching systems having a bias device including a current mirror with an input reference portion responsive to a reference current and a co-located output local portion for reproducing that current as the bias current.
    • 与每个输出行的点单元或每个输出行中的每个点单元的子集分布相关联的是存储器装置中的一个或多个,用于存储标识其相关联的输出行中的单元的地址以及响应于该存储器件的解码器装置 启动相关联的使能电路以操作所识别的单元的跨导装置; 偏置装置和输出共源共栅装置; 并且还公开了具有偏置装置的开关系统,偏置装置包括响应于参考电流的输入基准部分的电流镜和用于再现该电流作为偏置电流的共定位输出局部部分。