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    • 1. 发明授权
    • Power adapter with integral radio frequency port
    • 具有集成射频端口的电源适配器
    • US06212415B1
    • 2001-04-03
    • US09625719
    • 2000-07-25
    • David M. DemuroMike M. AlbertJohn A. KalenowskyRobert FordJoseph Patino
    • David M. DemuroMike M. AlbertJohn A. KalenowskyRobert FordJoseph Patino
    • H04B138
    • H04M1/727H04B1/3877H04L9/0891H04L63/0869H04M1/72505H04W12/04H04W12/06
    • The present invention provides a power adapter (10) adapted to couple an external antenna (17) to a communication device (30) by way of a cable (12) which is typically plugged into a cigarette lighter of a vehicle or some other power source at one end, and an input connector of the communication device (30) at the other. In particular, the present invention provides a simple one-piece vehicle power adapter which also provides RF input/output capability for connection to an external vehicle antenna. According to certain aspects of the invention, the adapter can be configured to have a variety of selection mechanisms. For example, the communication device could include an RF switch (34) and control circuitry for selecting either the internal or external antenna for optimum reception. Alternatively, the cable could include an external switch (70) for allowing the user to select the desired antenna. Finally, the cable could include a component which automatically actuates the switch to select the external antenna when the external antenna is connected to the communication device.
    • 本发明提供了一种适于通过电缆(12)将外部天线(17)耦合到通信设备(30)的电力适配器(10),该电缆通常被插入车辆的点烟器或一些其他电源 一端和另一端的通信装置(30)的输入连接器。 特别地,本发明提供了一种简单的一体式电力适配器,其也提供用于连接到外部车辆天线的RF输入/输出能力。 根据本发明的某些方面,适配器可被配置成具有各种选择机制。 例如,通信设备可以包括用于选择内部或外部天线以用于最佳接收的RF开关(34)和控制电路。 或者,电缆可以包括用于允许用户选择所需天线的外部开关(70)。 最后,当外部天线连接到通信设备时,电缆可以包括自动启动开关以选择外部天线的部件。
    • 2. 发明授权
    • Power adapter with integral radio frequency port
    • 具有集成射频端口的电源适配器
    • US06205344B1
    • 2001-03-20
    • US08485932
    • 1995-06-07
    • David M. DemuroMike M. AlbertJohn A. KalenowskyRobert FordJoseph Patino
    • David M. DemuroMike M. AlbertJohn A. KalenowskyRobert FordJoseph Patino
    • H04B138
    • H04M1/727H04B1/3877H04L9/0891H04L63/0869H04M1/72505H04W12/04H04W12/06
    • The present invention provides a power adapter (10) adapted to couple an external antenna (17) to a communication device (30) by way of a cable (12) which is typically plugged into a cigarette lighter of a vehicle or some other power source at one end, and an input connector of the communication device (30) at the other. In particular, the present invention provides a simple one-piece vehicle power adapter which also provides RF input/output capability for connection to an external vehicle antenna. According to certain aspects of the invention, the adapter can be configured to have a variety of selection mechanisms. For example, the communication device could include an RF switch (34) and control circuitry for selecting either the internal or external antenna for optimum reception. Alternatively, the power adapter could include an external switch (70) for allowing the user to select the desired antenna. Finally, the power adapter could include a component which automatically actuates the switch to select the external antenna when the external antenna is connected to the communication device.
    • 本发明提供了一种适于通过电缆(12)将外部天线(17)耦合到通信设备(30)的电力适配器(10),该电缆通常被插入车辆的点烟器或一些其他电源 一端和另一端的通信装置(30)的输入连接器。 特别地,本发明提供了一种简单的一体式电力适配器,其也提供用于连接到外部车辆天线的RF输入/输出能力。 根据本发明的某些方面,适配器可被配置成具有各种选择机制。 例如,通信设备可以包括用于选择内部或外部天线以用于最佳接收的RF开关(34)和控制电路。 或者,电源适配器可以包括用于允许用户选择所需天线的外部开关(70)。 最后,当外部天线连接到通信设备时,电源适配器可以包括自动启动开关以选择外部天线的组件。
    • 5. 发明授权
    • Fail safe circuit and battery pack using same
    • 故障安全电路和电池组使用相同
    • US6046575A
    • 2000-04-04
    • US54009
    • 1998-04-02
    • David M. Demuro
    • David M. Demuro
    • H02J7/00H02H3/20
    • H02J7/0031
    • A battery pack (102) comprises a lithium battery cell or cells (112), and is charged by a charger (104). In the event of a failure in the charger, an over-voltage protection circuit (120, 122) normally prevents charging of the battery cell above an over-voltage limit. In the event of a failure in both the charger and the over-voltage protection circuit, a critical voltage protection circuit (124, 126, 128) is provided to render the battery inoperative in a fail safe state. Specifically, a critical voltage control circuit (128) senses the battery voltage reaching the critical voltage level and responds by closing a current shunt switch (126), which draws current from the battery cell or cells through a fuse (124), causing the fuse to open, thus rendering the battery pack inoperative in a fail safe state.
    • 电池组(102)包括锂电池单元(112),并由充电器(104)充电。 在充电器发生故障的情况下,过电压保护电路(120,122)通常防止电池单元的充电超过过压限制。 在充电器和过电压保护电路都发生故障的情况下,提供临界电压保护电路(124,126,128)以使电池处于故障安全状态。 具体地,临界电压控制电路(128)感测电池电压达到临界电压电平,并通过闭合电流分流开关(126)来进行响应,该电流分流开关(126)从电池单体或电池通过熔丝(124)吸取电流,从而使熔丝 打开,从而使电池组处于故障安全状态。