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公开(公告)号：US5666029A
公开(公告)日：1997-09-09
申请号：US237572
申请日：1994-05-03
申请人： Charles W. McDonald
发明人： Charles W. McDonald
CPC分类号： H01J9/42 , G01R31/245 , H05B37/03 , H02J9/065
摘要： A lighting system composed of: an AC ballast for delivering AC power from an AC power source to a lamp; an emergency power supply for delivering AC power to the lamp when the AC power source fails; and a switch for disconnecting the AC ballast from the AC power source when the AC power source fails.
摘要翻译： 一种照明系统，包括：AC交流镇流器，用于将交流电源从AC电源提供给灯; 用于在交流电源发生故障时向灯提供交流电的应急电源; 以及交流电源故障时，交流镇流器与交流电源断开的开关。
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2.发明授权
公开(公告)号：US5004953A
公开(公告)日：1991-04-02
申请号：US374451
申请日：1989-06-30
申请人： Charles W. McDonald
发明人： Charles W. McDonald
IPC分类号： H05B41/285
CPC分类号： H05B41/2853 , Y10S315/07
摘要： A method and circuit for operating a fluorescent lamp having a starter with power supplied by a battery by generating an alternating current from energy supplied by the battery; supplying the alternating current as a starting current to the lamp for a selected period of time; and, at the end of the selected period of time, generating a direct current from the alternating current and supplying the direct current to the lamp in place of the alternating current.
摘要翻译： 一种用于操作具有起动器的荧光灯的方法和电路，所述起动器具有由电池供应的电力，通过由电池供应的能量产生交流电; 将所述交流电作为起动电流提供给所述灯一段选定的时间; 并且在所选择的时间段结束时，从交流电流产生直流电并且将直流电流提供给灯来代替交流电。
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公开(公告)号：US4952766A
公开(公告)日：1990-08-28
申请号：US181494
申请日：1988-04-14
申请人： Charles W. McDonald
发明人： Charles W. McDonald
IPC分类号： H05B6/68
摘要： A closed-loop control for sensing the completion of popcorn popping in a microwave oven and automatically shutting down the oven. A microphone type sensor is acoustically coupled to the microwave oven cavity and provides an electrical signal to an amplifier and filter. The amplified and filtered signal is processed by a pop detector which includes an integrator and shut-down command generator responsive to a decreasing rate of popping to shut the oven off. The integrator provides a pre-pop timer function to maintain the oven on until popping commences. In an alternative sensor embodiment, a piezolelectric type sensor is used. In an alternative pop detector embodiment an adaptive threshold comparator which automatically adjusts pop detector operation to discriminate the popping signal from ambient noise present in the oven.
摘要翻译： 一个闭环控制，用于感测爆米花爆破的微波炉完成并自动关闭烤箱。 麦克风式传感器声耦合到微波炉腔，并向放大器和滤波器提供电信号。 放大和滤波的信号由包括积分器和关闭命令发生器的弹出检测器来处理，响应于下降速率来关闭烘箱。 集成商提供一个预弹出定时器功能来保持烤箱直到弹出开始。 在替代传感器实施例中，使用压电式传感器。 在替代弹出检测器实施例中，自适应阈值比较器自动调整弹出检测器操作以区分爆破信号与烘箱中存在的环境噪声。
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公开(公告)号：US5566936A
公开(公告)日：1996-10-22
申请号：US386214
申请日：1995-02-08
CPC分类号： A63B63/007 , A63B67/04 , A63B2024/004 , A63B2063/002 , A63B63/00 , A63B69/40
摘要： A table tennis game is provided that can be used with an automatic table tennis ball serving device, the game including a plurality of sensors which can be arranged on the surface of the table to serve as targets, the sensors having means for detecting the impact of a table tennis ball. The game contains a programmable microcomputer connected to the sensors which converts the impact into a score, calculates the automatic server's score, times the game, and displays the respective scores and elapsed time of play.
摘要翻译： 提供了可以与自动乒乓球服务装置一起使用的乒乓球比赛，游戏包括可以布置在桌子的表面上的多个传感器，用作目标，传感器具有用于检测冲击的装置 一个乒乓球 该游戏包含连接到传感器的可编程微型计算机，其将影响转换成分数，计算自动服务器的分数，乘以游戏次数，并显示相应的分数和游戏时间。
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公开(公告)号：US5144835A
公开(公告)日：1992-09-08
申请号：US729495
申请日：1991-07-12
申请人： Charles W. McDonald
发明人： Charles W. McDonald
CPC分类号： G01F23/268 , D06F39/087 , G01F23/266
摘要： A liquid level sensing device for determining the level of a liquid in a liquid confining unit, methods of making and operating the device and a laundry machine using the device are provided, the device comprising a pair of electrode plates disposed in spaced apart relation so as to be adapted to be in a certain position relative to the confining unit and having opposed ends, an electrical circuit connected to the electrode plates for creating a voltage signal therefrom that varies in relation to the level of the liquid in the confining unit relative to the electrode plates, a control for determining the actual level of the liquid from the signal, and a third electrode plate disposed in spaced apart relation to the pair of electrode plates and being adapted to cooperate with one of the pair of electrode plates to provide a reference voltage signal to determine the electrolytic base of the liquid.
摘要翻译： 提供一种用于确定液体封闭单元中的液体液位的液位感测装置，使用该装置的制造和操作该装置的方法以及洗衣机，该装置包括一对以间隔开的关系设置的电极板， 适于相对于限制单元处于一定位置并且具有相对的端部，连接到电极板的电路用于从其产生电压信号，该电压信号相对于限制单元中的液体的液位相对于 电极板，用于确定来自信号的液体的实际水平的控制装置，以及与所述一对电极板间隔设置的第三电极板，并且适于与所述一对电极板中的一个配合以提供参考 电压信号来确定液体的电解碱。
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公开(公告)号：US5050431A
公开(公告)日：1991-09-24
申请号：US581014
申请日：1990-09-12
申请人： Charles W. McDonald
发明人： Charles W. McDonald
CPC分类号： D06F39/087 , G01F23/266 , G01F23/268
摘要： A liquid level sensing device for determining the level of a liquid in a liquid confining unit, methods of making and operating the device and a laundry machine using the device are provided, the device comprising a pair of electrode plates disposed in spaced apart relation so as to be adapted to be in a certain position relative to the confining unit and having opposed ends, an electrical circuit connected to the electrode plates for creating a voltage signal therefrom that varies in relation to the level of the liquid in the confining unit relative to the electrode plates, a control for determining the actual level of the liquid from the signal, and a third electrode plate disposed in spaced apart relation to the pair of electrode plates and being adapted to cooperate with one of the pair of electrode plates to provide a reference voltage signal to determine the electrolytic base of the liquid.
摘要翻译： 提供一种用于确定液体封闭单元中的液体液位的液位感测装置，使用该装置的制造和操作该装置的方法以及洗衣机，该装置包括一对以间隔开的关系设置的电极板， 适于相对于限制单元处于一定位置并且具有相对的端部，连接到电极板的电路用于从其产生电压信号，该电压信号相对于限制单元中的液体的液位相对于 电极板，用于确定来自信号的液体的实际水平的控制装置，以及与所述一对电极板间隔设置的第三电极板，并且适于与所述一对电极板中的一个配合以提供参考 电压信号来确定液体的电解碱。
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公开(公告)号：US4870238A
公开(公告)日：1989-09-26
申请号：US181642
申请日：1988-04-14
IPC分类号： H05B6/68
CPC分类号： H05B6/687
摘要： A closed-loop control for sensing the completion of popcorn popping in a microwave oven and automatically shutting down the oven. A sensor is acoustically coupled to the microwave oven cavity and provides an electrical signal to an amplifier and filter. The amplified and filtered signal is processed by a pop detector which includes an integrator and shut-down command generator responsive to a decreasing rate of popping to shut the oven off. The integrator provides a pre-pop timer function to maintain the oven on until popping commences. In an alternative embodiment, the peak rate of popping is detected and held and the oven is shut off when the popping rate falls to a predetermined ratio of the peak rate or a predetermined time elapses after the peak rate is detected, whichever first occurs.
摘要翻译： 一个闭环控制，用于感测爆米花爆破的微波炉完成并自动关闭烤箱。 传感器与微波炉腔声学耦合，并向放大器和滤波器提供电信号。 放大和滤波的信号由包括积分器和关闭命令发生器的弹出检测器来处理，响应于下降速率来关闭烘箱。 集成商提供一个预弹出定时器功能来保持烤箱直到弹出开始。 在替代实施例中，当检测到峰值速率时，突然率下降到峰值速率的预定比率或经过峰值速率之后的预定时间（以先发生者为准），检测并保持爆破的峰值速率。
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