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    • 2. 发明申请
    • WIRELESS SYSTEM FOR SHARING AUDIO SIGNAL
    • 用于共享音频信号的无线系统
    • US20090060229A1
    • 2009-03-05
    • US12204934
    • 2008-09-05
    • Richard H. HarrisJames E. Coch, III
    • Richard H. HarrisJames E. Coch, III
    • H03F99/00
    • H04R27/00H04R2227/003H04R2420/07
    • An audio system includes an audio enabled device, a transmitter and at least one receiver. The audio enabled device has a school and office product and an amplifier integrated with the school and office product. The audio enabled device is configured such that when the amplifier receives an electronic audio signal the amplifier and the school and office product cooperate to provide an audible audio output. The transmitter is connectable to the amplifier and configured to wirelessly transmit the electronic audio signal. Each receiver is connectable to the input port of an amplifier, and each such receiver is configured to receive the electronic audio signal transmitted by the transmitter.
    • 音频系统包括音频启用设备,发射机和至少一个接收机。 支持音频的设备具有学校和办公室产品以及与学校和办公室产品集成的放大器。 音频启用设备被配置为使得当放大器接收到电子音频信号时,放大器和学校和办公室产品协作以提供可听音频输出。 发射机可连接到放大器并配置为无线传输电子音频信号。 每个接收器可连接到放大器的输入端口,并且每个这样的接收器被配置为接收由发送器发送的电子音频信号。
    • 5. 发明授权
    • Sensing a paper roll ultrasonically
    • 超声波感应纸卷
    • US07669476B2
    • 2010-03-02
    • US12193787
    • 2008-08-19
    • Robert T. CatoTimothy W. CrockettRichard H. HarrisJeff D. Thomas
    • Robert T. CatoTimothy W. CrockettRichard H. HarrisJeff D. Thomas
    • G01N3/32
    • G01B17/02B41J11/0075B41J15/02B65H26/08B65H2553/30
    • A system for sensing paper on a paper roll includes an ultrasonic transducer positioned to be in contact with an outer surface of the paper roll; a transmitter circuit in communication with the ultrasonic transducer, the transmitter circuit providing a transmit signal to the ultrasonic transducer, the ultrasonic transducer generating an ultrasonic signal in response to the transmit signal; a receiver circuit in communication with the ultrasonic transducer, the receiver circuit providing a received signal indicative of an ultrasonic return echo from the paper roll, the ultrasonic return echo resulting from the ultrasonic signal interacting with the paper roll; and a processor circuit, in communication with the transmitter circuit and the receiver circuit, that determines an amount of paper remaining on the paper roll in response to the transmit signal and the receive signal, the processor providing an output signal when the amount of paper remaining falls below a threshold.
    • 用于感测纸卷上的纸的系统包括定位成与纸卷的外表面接触的超声换能器; 与所述超声波换能器通信的发射机电路,所述发射机电路向所述超声换能器提供发射信号,所述超声波换能器响应于所述发射信号产生超声波信号; 与所述超声波换能器通信的接收器电路,所述接收器电路提供表示来自所述纸卷的超声波返回回波的接收信号,所述超声波返回回波由所述超声波信号与所述纸卷相互作用; 以及与所述发射机电路和所述接收机电路通信的处理器电路,其响应于所述发射信号和所述接收信号来确定纸卷上剩余的纸张量,所述处理器在剩余纸张量时提供输出信号 低于阈值。
    • 10. 发明申请
    • COMPACT LOW PAPER SENSOR MECHANISM
    • 紧凑低纸传感器机构
    • US20090152795A1
    • 2009-06-18
    • US11958836
    • 2007-12-18
    • Stacy L. ArringtonRichard H. HarrisDean F. HerringRobert A. MyersRobert D. Yoder
    • Stacy L. ArringtonRichard H. HarrisDean F. HerringRobert A. MyersRobert D. Yoder
    • B65H7/04
    • B65H26/08B65H2553/412B65H2801/12
    • A low paper sensor mechanism including first and second support rollers rotatable about a first and second rotational axis to support a paper supply roll, the first and second support rollers and rotational axes configured to translate in a path between a first position and a second position, first and second biasing members biasing the first and second support rollers toward the second position and a detection device, including a light emitting element and a light detecting element, disposed adjacent to the first and second support rollers, wherein the first and second support rollers move from the first position to the second position when a diameter of the paper supply roll is less than or equal to the predetermined distance between the first and second support rollers and the paper supply roll disrupts a line of sight between the light emitting element and the light detecting element.
    • 一种低纸张传感器机构,包括可围绕第一和第二旋转轴线旋转以支撑供纸辊的第一和第二支撑辊,第一和第二支撑辊和旋转轴构造成在第一位置和第二位置之间的路径中平移, 第一和第二偏置构件朝向第二位置偏置第一和第二支撑辊;以及检测装置,包括发光元件和光检测元件,邻近第一和第二支撑辊布置,其中第一和第二支撑辊移动 当供纸辊的直径小于或等于第一和第二支撑辊之间的预定距离并且供纸辊破坏发光元件和光之间的视线时,从第一位置到第二位置 检测元件。