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    • 6. 发明申请
    • Medication management system
    • 药物治疗系统
    • US20070083344A1
    • 2007-04-12
    • US11591970
    • 2006-11-02
    • Geoffrey HollandPatrick KeelyJeff PelletierCharles MoranJohn HuangMarwan FathallahMartin McNeela
    • Geoffrey HollandPatrick KeelyJeff PelletierCharles MoranJohn HuangMarwan FathallahMartin McNeela
    • G06F11/30G21C17/00
    • G06F19/3468G06F19/00
    • A medication management system (MMS) includes a medication management unit (MMU) associated with a medical device. The MMU downloads a medication order to the medical device only if information from a first input matches information from a second input. The medical device receives delivery information only from the MMU. The medication order is performed only after delivery data validation. The MMU also determines drug-drug incompatibility. The MMU can modulate (start, stop, and dynamically adjust) medication order performance. The medical device wirelessly receives a patient ID to automatically associate with the patient. During delivery, the medical device caches an updated drug library to replace an existing one. The medical device displays a patient picture for validation. The MMU evaluates the performance of medical devices and caregivers based medical device feedback. The MMU adjusts the output of medical device information conveyed to a caregiver.
    • 药物管理系统(MMS)包括与医疗装置相关联的药物管理单元(MMU)。 仅当来自第一输入的信息匹配来自第二输入的信息时,MMU才将药物订单下载到医疗设备。 医疗设备仅从MMU接收传送信息。 药物订单仅在交货数据验证后执行。 MMU还确定药物 - 药物不相容性。 MMU可以调节(启动,停止和动态调整)药物订单性能。 医疗设备无线地接收患者ID以自动与患者相关联。 在交付期间,医疗设备缓存更新的药物库以替换现有的药物库。 医疗设备显示病人照片进行验证。 MMU评估医疗设备和照顾者的医疗设备反馈的性能。 MMU调整传送给看护者的医疗设备信息的输出。
    • 9. 发明授权
    • LED controller
    • LED控制器
    • US09107258B1
    • 2015-08-11
    • US13178336
    • 2011-07-07
    • Thomas ChaoJohn Huang
    • Thomas ChaoJohn Huang
    • H05B37/02H05B33/08
    • H05B33/0815H05B33/083Y02B20/341
    • Methods and circuits for controlling LEDs are disclosed. In one embodiment, the light emitting diode (LED) integrated circuit controller includes a voltage regulator circuit configured to operate with an alternating current (AC) power source, where the voltage regulator circuit includes a depletion device configured to receive a varying AC voltage and to generate a unregulated voltage, and a band gap voltage reference circuit configured to received the unregulated voltage and to generate a substantially constant direct current (DC) voltage. The LED integrated circuit controller further includes a current setting circuit configured to receive the substantially constant DC voltage and to provide a substantially constant direct current to drive a series of light emitting diodes, and a second depletion device configured to protect the LED integrated circuit controller from external high voltages.
    • 公开了用于控制LED的方法和电路。 在一个实施例中,发光二极管(LED)集成电路控制器包括配置成与交流(AC)电源一起工作的电压调节器电路,其中电压调节器电路包括被配置为接收变化的AC电压的耗尽装置, 产生未调节的电压,以及带隙电压参考电路,被配置为接收未调节的电压并产生基本恒定的直流(DC)电压。 LED集成电路控制器还包括电流设置电路,其被配置为接收基本上恒定的DC电压并提供基本上恒定的直流电流以驱动一系列发光二极管;以及第二耗尽器件,被配置为保护LED集成电路控制器 外部高电压。
    • 10. 发明授权
    • Current limiting technique for hybrid power MOSFET circuits
    • 混合功率MOSFET电路的限流技术
    • US06552889B1
    • 2003-04-22
    • US09908178
    • 2001-07-17
    • John HuangHamza YilmazMohamed N. DarwishWharton McDanielKyle TerrillPeter Tu Dang
    • John HuangHamza YilmazMohamed N. DarwishWharton McDanielKyle TerrillPeter Tu Dang
    • H02H300
    • H03K17/0822
    • A power FET and a replica FET on a semiconductor chip coupled to a logic control circuit on a second semiconductor chip within a single housing. A power FET and a scaled down replica of the power FET are disposed on a semiconductor chip. The power FET is used as a switch to couple a DC power source to a load. A fraction of the power FET drain current passes through the replica FET and an external resistance. When the voltage across the external resistance exceeds a maximum value based upon the maximum allowable power FET drain current, the logic control circuit enters into a pulsed gate (PG) mode of operation. The first step in the PG mode is to switch both FETs into a non-conducting state for a predefined period of time. After this time period, a ramp voltage applied between gate and source of both FETs will switch them back into a current conducting state while holding the power FET drain current below its upper limit in the presence of a high capacitance load. If the voltage across the external resistance increases above the maximum, the PG mode of operation continues. PG mode of operation ceases and normal operation follows when the external resistance voltage remains below the established maximum. The combination of predefined nonconducting time and maximum drain current ensures operation of the power FET below maximum power dissipation limits. The PG mode of operation eliminates the need for additional temperature and thermal control circuits.
    • 半导体芯片上的功率FET和复制FET耦合到单个壳体内的第二半导体芯片上的逻辑控制电路。 功率FET的功率FET和缩小的复制品设置在半导体芯片上。 功率FET用作将直流电源耦合到负载的开关。 功率FET漏极电流的一部分通过复制FET和外部电阻。 当外部电阻两端的电压超过最大容许功率FET漏极电流的最大值时,逻辑控制电路进入脉冲门(PG)工作模式。 PG模式的第一步是将两个FET切换到非导通状态一段预定的时间。 在这个时间段之后,施加在两个FET的栅极和源极之间的斜坡电压将在高电容负载存在的同时将功率FET漏极电流保持在其上限以下,将其切换回导通状态。 如果外部电阻两端的电压增加到最大值以上,则PG模式继续。 当外部电阻保持低于建立的最大值时,PG模式停止,正常操作。 预定义的非导通时间和最大漏极电流的组合确保功率FET的功耗低于最大功耗限制。 PG操作模式无需额外的温度和热控制电路。