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    • 1. 发明授权
    • Overcharge current protection circuit and battery pack using same
    • 过充电保护电路和电池组使用相同
    • US5602460A
    • 1997-02-11
    • US430669
    • 1995-04-28
    • Jose M. FernandezVernon MeadowsErika D. MackIilonga P. Thandiwe
    • Jose M. FernandezVernon MeadowsErika D. MackIilonga P. Thandiwe
    • H02J7/00H02J7/04
    • H02J7/0031
    • A battery pack (62) comprises cells (74), and is charged by a charger (64) providing a current level. The charger (64) is a typical nickel-cadmium battery charger providing a first charge current level in excess of an optimum charge current level. The battery pack (62) further comprises a thermal sensing element (76) and an overcurrent charge protection circuit having an overcurrent switch (78), current sense circuit (80), comparator circuit (82), and temperature signal switch (84). If the current level through the cells (74) exceeds the optimum charge current level, the current sense circuit (80) provides a signal to comparator circuit (82) which actuates the temperature signal switch (84), simulating a hot battery pack. The charger (64) then switches to a second charge current level which does not exceed the optimum charge current level. If the charger (64) does not change current levels, a switch delay (86), after a brief period, accumulates enough voltage to actuate a driver switch (88) which opens the overcurrent switch (78), disconnecting the cells (74) from the charger (64).
    • 电池组(62)包括电池(74),并由提供电流电平的充电器(64)充电。 充电器(64)是典型的镍镉电池充电器,其提供超过最佳充电电流电平的第一充电电流电平。 电池组(62)还包括热敏元件(76)和具有过电流开关(78),电流检测电路(80),比较器电路(82)和温度信号开关(84)的过电流充电保护电路。 如果通过单元(74)的电流电平超过最佳充电电流电平,则电流感测电路(80)向比较器电路(82)提供信号,该电路致动温度信号开关(84),模拟热电池组。 然后,充电器(64)切换到不超过最佳充电电流电平的第二充电电流电平。 如果充电器(64)不改变电流水平,则在短时间之后,开关延迟(86)累积足够的电压以致动打开过电流开关(78)的驱动器开关(88),断开电池(74), 从充电器(64)。
    • 2. 发明授权
    • Idle current cutoff circuit
    • 空闲电流截止电路
    • US5691622A
    • 1997-11-25
    • US578845
    • 1995-12-26
    • Erika D. MackJose M. Fernandez
    • Erika D. MackJose M. Fernandez
    • H02J7/00
    • H02J7/0031
    • A cutoff switch (40) separates the reference line (20) of a control circuit (18) from the B- line (24). The cutoff switch is in an electrically open state until the function of the control circuit is required, thus eliminating current flow through the control circuit when the function of the control circuit is not required. To enable the control circuit, a threshold switch (42) is provided to cause the cutoff switch to change states when the battery voltage reaches a predetermined level. To provide an override, a diode is connected between an auxiliary line (26), used a thermistor (28), for example.
    • 截止开关(40)将控制电路(18)的参考线(20)与B-线(24)分开。 截止开关处于电开状态,直到需要控制电路的功能,从而在不需要控制电路的功能时,消除了通过控制电路的电流。 为了启用控制电路,提供阈值开关(42),以在电池电压达到预定电平时使截止开关改变状态。 为了提供覆盖,二极管连接在例如使用热敏电阻(28)的辅助线(26)之间。
    • 3. 发明授权
    • Overvoltage disconnect circuit for lithium ion batteries
    • 锂离子电池过压断路电路
    • US5637413A
    • 1997-06-10
    • US543549
    • 1995-10-16
    • Jose M. FernandezErika D. Mack
    • Jose M. FernandezErika D. Mack
    • H02J7/00H01M14/00
    • H02J7/0031
    • A lithium ion or similar lithium secondary battery pack (10) includes an overvoltage disconnect circuit having an overvoltage disconnect switch (14), a voltage detector (16), and a delay circuit (18). The battery pack is connectable to a recharger which was not designed to accomodate the charge regime of the lithium ion cell or cells (12), such as a nickel system recharger (20). The voltage detector samples the battery voltage and changes its output signal if the battery voltage reaches an upper voltage threshold. The output of the voltage detector will not revert back until the battery voltage drops to a lower voltage threshold, which is below the upper voltage threshold.
    • 锂离子或类似的锂二次电池组(10)包括具有过电压断开开关(14),电压检测器(16)和延迟电路(18)的过电压断开电路。 电池组可连接到不被设计成容纳锂离子电池(12)的电荷状态的充电器,例如镍系统充电器(20)。 如果电池电压达到上限电压阈值,电压检测器将对电池电压进行采样并改变其输出信号。 电压检测器的输出将不会恢复,直到电池电压下降到低于上限电压阈值的较低电压阈值。
    • 9. 发明授权
    • Method and apparatus for fast booting a portable computing device allowing for immediate operation
    • 用于快速启动便携式计算设备以允许立即操作的方法和装置
    • US08156320B2
    • 2012-04-10
    • US12207106
    • 2008-09-09
    • Jaime A. BorrasJose M. FernandezZaffer S. Merchant
    • Jaime A. BorrasJose M. FernandezZaffer S. Merchant
    • G06F9/00G06F13/00
    • G06F9/44573G06F9/4401
    • The present invention discloses a portable computing device (200) including a processor (202), non-volatile memory (206), and a volatile memory (208). An execute in place (XIP) kernel (210) stored in the non-volatile memory is executed immediately upon powering up the device. As the XIP kernel is executed, the processor maintain state and context information (212) in the volatile memory. The XIP kernel includes user interface and application segments, allow the user to perform some functions immediately upon powering up the device. While executing the XIP kernel and full code instantiation (214) is loaded into the volatile memory. The full code instantiation includes identical code as is in the XIP kernel, in addition to other code. Once loaded, execution is switched (412) from the XIP kernel to the full code instantiation, providing full functionality of the device.
    • 本发明公开了一种包括处理器(202),非易失性存储器(206)和易失性存储器(208)的便携式计算设备(200)。 存储在非易失性存储器中的执行就绪(XIP)内核(210)在加电设备时立即执行。 当执行XIP内核时,处理器将状态和上下文信息(212)维护在易失性存储器中。 XIP内核包括用户界面和应用程序段,允许用户在启动设备时立即执行某些功能。 在执行XIP内核并将完整代码实例化(214)加载到易失性存储器中时。 除了其他代码之外,完整的代码实例包括与XIP内核中相同的代码。 一旦加载,执行从XIP内核切换到(412)到完全代码实例化,提供设备的全部功能。