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    • 2. 发明授权
    • Constant wattage electric ballast circuit for lamp
    • 恒功率电灯镇流器
    • US6011363A
    • 2000-01-04
    • US17251
    • 1998-02-02
    • Joseph Michael Allison
    • Joseph Michael Allison
    • H05B41/18H05B41/392H05B37/02
    • H05B41/392H05B41/18
    • A constant wattage electronic ballast circuit for lamp comprises a circuit for producing a voltage feedback signal substantially proportional to voltage of the lamp. A diode function generator processes the voltage feedback signal so as to produce a processed signal which, within sequential bands of lamp voltage, varies less for a specified variation of lamp voltage in a higher voltage band than in a lower voltage band. A circuit produces a current feedback signal substantially proportional to current in the lamp. A circuit for controlling lamp current comprises a circuit for summing the processed signal with the current feedback signal to create a summed signal, and a circuit for adjusting lamp current in response to the difference between the summed signal and a reference signal.
    • 用于灯的恒功率电子镇流器电路包括用于产生基本上与灯的电压成比例的电压反馈信号的电路。 二极管功能发生器处理电压反馈信号,以便产生处理的信号,该处理信号在灯电压的顺序频带内对于较高电压带中的灯电压的指定变化比在较低电压频带中变化较小。 电路产生基本上与灯中的电流成比例的电流反馈信号。 用于控制灯电流的电路包括用于将经处理的信号与电流反馈信号相加以产生求和信号的电路,以及响应于求和信号和参考信号之间的差异来调节灯电流的电路。
    • 6. 发明授权
    • Atmospheric hazard detector network
    • 大气危险检测器网络
    • US5831526A
    • 1998-11-03
    • US811132
    • 1997-03-03
    • Richard L. HanslerMark H. ThomsenJoseph Michael Allison
    • Richard L. HanslerMark H. ThomsenJoseph Michael Allison
    • G08B17/00G08B21/00G08B27/00G08C17/02G05B1/08
    • G08B17/00G08B17/10G08B25/009G08B27/00G08B7/066
    • A network of identical atmospheric hazard detectors communicates a locally sensed hazard condition directly to multiple neighboring detectors using RF command communication, without the use of wires and without a central control location. Each detector includes a sensor of an atmospheric hazard, a detection circuit for measuring the sensor output and creating a local hazard signal, an alarm indicator, an RF transmitter for sending a neighboring hazard signal to the network, and an RF receiver for receiving a neighboring hazard signal from the network. The local alarm and neighboring alarm control signals produce discernibly different alarm indications from the detector's alarm device, facilitating an attempt to locate the origin of a hazard. In the preferred embodiment, every detector functions as a receive/transmit relay station, enabling the network to be extended in spatial expanse without limit and without increasing the power output of the RF transmitter. Auxiliary devices are included, for example, a radio controlled light for emergency illumination.
    • 相同的大气危险检测器的网络使用RF命令通信将局部感测的危险状况直接传送到多个相邻检测器,而不使用电线并且没有中央控制位置。 每个检测器包括大气危险的传感器,用于测量传感器输出并产生局部危险信号的检测电路,报警指示器,用于向网络发送相邻危险信号的RF发射器,以及用于接收邻近 来自网络的危险信号。 本地报警和相邻的报警控制信号从检测器的报警装置产生明显不同的报警指示,便于尝试定位危险源。 在优选实施例中,每个检测器用作接收/发射中继站,使网络能够在无限制地扩展空间并且不增加RF发射机的功率输出。 包括辅助设备,例如用于紧急照明的无线电照明灯。
    • 7. 发明申请
    • SWIVEL CAMP CHAIR
    • US20130049410A1
    • 2013-02-28
    • US13215804
    • 2011-08-23
    • Todd W. StaffordMichael Allison
    • Todd W. StaffordMichael Allison
    • A47C4/00
    • A47C3/18A47C4/286A47C7/68A47C9/105
    • A camp chair that levels to accommodate uneven ground and swivels. In the various embodiments, the camp chair includes a swivel assembly between the seat and the legs. The camp chair collapses into a compact portable configuration for transportation and expands into an operable seating configuration. The length of each leg is individually adjustable to allow leveling of the camp chair for use on an uneven or inclined surface. The camp chair optionally includes attachment points for connecting accessories. The swivel assembly allows the seat and any attachments to rotate freely about the vertical axis of the camp chair.
    • 一个营地椅子,适合不平坦的地面和旋转。 在各种实施例中,营地椅子包括在座椅和腿部之间的旋转组件。 营地椅折叠成紧凑的便携式配置用于运输,并扩展成可操作的座椅配置。 每个腿的长度可单独调节,以便使营地椅的平整度在不平坦或倾斜的表面上使用。 露营椅可选地包括连接附件的连接点。 旋转组件允许座椅和任何附件围绕营地椅子的竖直轴线自由旋转。