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    • 43. 发明申请
    • Accoustical apparatus and method for measuring water level in a ground water well
    • 用于测量地下水井水位的声学仪器和方法
    • US20060037392A1
    • 2006-02-23
    • US10919240
    • 2004-08-17
    • Steve CarknerPaul HoldenJamie Risk
    • Steve CarknerPaul HoldenJamie Risk
    • G01F23/00
    • G01F23/2962
    • An acoustic distance measuring device adapted to measure the level of water in a ground water well by first emitting a sonic low frequency acoustic pulse and measuring the time-of-flight for each reflected pulse from the surface of the water in the well. Each reflected pulse must have an amplitude greater than a threshold amplitude or it will be rejected. Based on time-of-flight measurements from the first low frequency sonic pulse reception windows are established for a second higher frequency sonic pulse. To refine the time-of-flight measurements for the second pulse only those reflected pulses whose reception times fall within the reception windows are accepted. A more accurate calculation of the distance from the sonic pulse emitter to the surface of the water is accomplished by using the refined time-of-flight measurements from the second higher frequency pulse.
    • 声学距离测量装置,其适于通过首先发射声波低频声脉冲并且测量来自井中的水表面的每个反射脉冲的时间来测量地下水井中的水位。 每个反射脉冲必须具有大于阈值振幅的幅度,否则将被拒绝。 基于来自第一低频声波脉冲接收窗口的飞行时间测量建立用于第二较高频率声波脉冲。 为了优化第二脉冲的飞行时间测量,只接收接收时间落在接收窗口内的那些反射脉冲。 通过使用来自第二较高频率脉冲的精确飞行时间测量,可以更准确地计算从声波脉冲发射器到水面的距离。
    • 48. 发明申请
    • DEVICE IDENTIFICATION VIA SERIAL COMMUNICATION LINK
    • 通过串行通信链路进行设备识别
    • US20090091422A1
    • 2009-04-09
    • US12203717
    • 2008-09-03
    • Jahan MinooPaul HoldenStan RabuJeff TerlizziJesse Dorogusker
    • Jahan MinooPaul HoldenStan RabuJeff TerlizziJesse Dorogusker
    • G05B19/00
    • G06F13/4282
    • Systems and methods are provided that enable identification of an accessory device or other peripheral device via a serial communication link. An electronic device (e.g., a media player or portable media device) may identify an accessory device using a serial communication link when the accessory device is attached or coupled to the electronic device. Based on serial communications, for example, the electronic device may discover and identify an accessory device to determine whether one or more preferences or functionalities should be set or enabled. The electronic device may also discover whether an accessory device or its manufacturer, distributor, or retailer is authorized or licensed to enable certain functionalities or set certain preferences when connect to the electronic device. Therefore, aspects of a serial communication link that may already exist in many electronic devices for data communication usage may be repurposed to provide identification or authorization of accessories or other peripheral devices.
    • 提供了能够通过串行通信链路识别附件设备或其他外围设备的系统和方法。 当附件设备附接或耦合到电子设备时,电子设备(例如,媒体播放器或便携式媒体设备)可以使用串行通信链路识别附件设备。 基于串行通信,例如,电子设备可以发现并识别附件设备,以确定是否应该设置或启用一个或多个偏好或功能。 电子设备还可以发现附件设备或其制造商,分销商或零售商是否被授权或许可以启用某些功能,或者在连接到电子设备时设置某些偏好。 因此,用于数据通信使用的许多电子设备中可能已经存在的串行通信链路的方面可以被重新利用以提供附件或其他外围设备的标识或授权。