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    • 17. 发明授权
    • Class D amplifier with increased efficiency
    • D类放大器提高了效率
    • US07619471B2
    • 2009-11-17
    • US11831941
    • 2007-07-31
    • Lance WestonTony T LiJohn J Ryan
    • Lance WestonTony T LiJohn J Ryan
    • H03F3/217
    • H03F3/2173H03F1/0205H03F2200/03H03F2200/114H03F2200/321H03F2200/351
    • The present invention is a method of operating a speaker by converting an audio signal to a pulse-width modulated signal that has a plurality of positive pulses and a plurality of negative pulses as a function of the audio signal, then driving an H-bridge circuit interconnected to a speaker, wherein the H-bridge circuit comprises an A-side and a B-side, wherein the A-side comprises a first switching transistor and a second switching transistor, and wherein the B-side comprises a first switching transistor and a second switching transistor. For each positive pulse, the A-side of the H-bridge circuit is driven by pushing the first switching transistor of the A-side while grounding the second switching transistor of the A-side. For each negative pulse, the B-side of the H-bridge circuit is driven by pushing the first switching transistor of the B-side while grounding the second switching transistor of the B-side.
    • 本发明是一种通过将音频信号转换成具有作为音频信号的函数的多个正脉冲和多个负脉冲的脉冲宽度调制信号来操作扬声器的方法,然后驱动H桥电路 互连到扬声器,其中所述H桥电路包括A侧和B侧,其中所述A侧包括第一开关晶体管和第二开关晶体管,并且其中所述B侧包括第一开关晶体管和 第二开关晶体管。 对于每个正脉冲,通过在A侧的第二开关晶体管接地的同时推动A侧的第一开关晶体管来驱动H桥电路的A侧。 对于每个负脉冲,通过在B侧的第二开关晶体管接地的同时推动B侧的第一开关晶体管来驱动H桥电路的B侧。
    • 18. 发明授权
    • System and method for extending universal bus line length
    • 扩展通用总线长度的系统和方法
    • US07576624B2
    • 2009-08-18
    • US11434458
    • 2006-05-15
    • Lance WestonTony T. LiJohn J. Ryan
    • Lance WestonTony T. LiJohn J. Ryan
    • H04B3/04H04L25/03
    • G06F13/4072H04B1/62H04B3/06
    • A system and method for recovering a high frequency component of a slew rate controlled signal propagating along a transmission line enables the high frequency component to be recovered after being lost because of slew rate control and transmission line low pass filtering effects. The system includes a wave shaping circuit for receiving and shaping the slew rate controlled signal to recover the high frequency component. The method includes receiving the slew rate controlled signal, and recovering the high frequency component by shaping the slew rate controlled signal to produce a shaped signal, where the shaped signal includes the received slew rate controlled signal and the high frequency component.
    • 用于恢复沿着传输线传播的转换速率控制信号的高频分量的系统和方法使得能够在由于压摆率控制和传输线低通滤波效应而在丢失之后恢复高频分量。 该系统包括波形整形电路,用于接收和整形转换速率控制信号以恢复高频分量。 该方法包括接收压摆率控制信号,并通过整形转换速率控制信号来恢复高频分量,以产生成形信号,其中成形信号包括接收转换速率控制信号和高频分量。
    • 20. 发明申请
    • Control For A Heater
    • 控制加热器
    • US20080121114A1
    • 2008-05-29
    • US11564597
    • 2006-11-29
    • John J. RyanRonald R. Weiss
    • John J. RyanRonald R. Weiss
    • A23G3/10
    • A23G3/10
    • A heater control for a cotton candy machine automatically controls a heater within the spinner head of the machine to readily accommodate for fluctuations in input line frequency and input line voltage. The control is configured to measure the input line frequency and apply a predetermined voltage to the heater that varies as a function of the measured input line frequency. The control is further configured to measure the input line voltage and apply a generally constant predetermined voltage to the heater for a particular measured input line frequency.
    • 用于棉花糖机的加热器控制器自动控制机器的旋转头内的加热器以容易地适应输入线频率和输入线电压的波动。 该控制被配置成测量输入线路频率,并将预定电压施加到根据测量的输入线路频率变化的加热器。 该控制还被配置成测量输入线路电压,并且对于特定测量的输入线路频率,向加热器施加大致恒定的预定电压。