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    • 4. 发明申请
    • ULTRASONIC TRANSDUCER DRIVE
    • 超声波传感器驱动
    • US20070016044A1
    • 2007-01-18
    • US11160914
    • 2005-07-14
    • Travis BlalockWilliam WalkerJohn Hossack
    • Travis BlalockWilliam WalkerJohn Hossack
    • A61B8/00
    • G01S7/52017A61B8/4427A61B8/4483G01S7/5208
    • In some illustrative embodiments, an ultrasonic transducer drive includes a signal generator for producing an outgoing signal and a transducer for converting the outgoing signal to outgoing ultrasound. The transducer may also convert at least a portion of ultrasound reflected by an object to an incoming signal. The transducer may have a transmit side connected conductably to the signal generator during at least a first predetermined period of time and a receive side connected conductably to a signal receiver during at least a second predetermined period of time. A shunt may be connectable between the receive side and a reference potential. The signal generator may generate the outgoing signal during at least substantially the first predetermined period of time while the shunt connects the receive side to the reference potential. The signal receiver may receive the incoming signal during substantially the second predetermined period of time while the shunt is substantially open.
    • 在一些说明性实施例中,超声换能器驱动器包括用于产生输出信号的信号发生器和用于将输出信号转换为输出超声的换能器。 换能器还可以将由物体反射的超声波的至少一部分转换为输入信号。 换能器可以具有在至少第一预定时间段内可传导地连接到信号发生器的发射侧,并且在至少第二预定时间段期间可接收地连接到信号接收器的接收侧。 分流器可以在接收侧和参考电位之间连接。 信号发生器可以在至少基本上第一预定时间段期间产生输出信号,而分流器将接收侧连接到参考电位。 信号接收器可在基本上在分路基本上打开的基本上第二预定时段期间接收输入信号。
    • 7. 发明授权
    • Subwoofer mounting bracket
    • 低音炮安装支架
    • US08666105B2
    • 2014-03-04
    • US12905380
    • 2010-10-15
    • William WalkerChris Matthews
    • William WalkerChris Matthews
    • H04R25/00
    • B60R11/0217B60R2011/0036B60R2011/0052H04R1/026
    • Disclosed herein are embodiments of a speaker mounting assembly. In one such embodiment, the speaker mounting assembly comprises a speaker housing having a housing support surface, a speaker mounting bracket having a base surface, a projection extending from one of the speaker housing and the speaker mounting bracket and a mounting structure formed on the other of the speaker housing and the speaker mounting bracket. The mounting structure is configured to receive the projection such that the housing support surface contacts the base surface when the projection is received in the mounting structure. The mounting structure has an anti-rotation structure configured to prevent rotation of the speaker housing with respect to the speaker mounting bracket.
    • 这里公开了扬声器安装组件的实施例。 在一个这样的实施例中,扬声器安装组件包括具有壳体支撑表面的扬声器壳体,具有基座表面的扬声器安装支架,从扬声器壳体和扬声器安装支架中的一个延伸的突出部和在另一个上形成的安装结构 的扬声器外壳和扬声器安装支架。 安装结构构造成接收突起,使得当突起被接收在安装结构中时,壳体支撑表面接触基座表面。 安装结构具有防旋转结构,其构造成防止扬声器壳体相对于扬声器安装支架旋转。
    • 8. 发明授权
    • Transition-based macro-models for analog simulation
    • 用于模拟仿真的基于过渡的宏模型
    • US08527257B2
    • 2013-09-03
    • US13175456
    • 2011-07-01
    • Subodh M. ReddyWilliam Walker
    • Subodh M. ReddyWilliam Walker
    • G06F17/50
    • G06F17/5036
    • A method may include generating logical transition data for the logic cell based on an analysis of a digital model for the logic cell, the logical transition data including at least one entry indicative of an output transition of the logic cell occurring in response to an input transition of the logic cell. The method may also include generating a parameterized transition based analog model for the logic cell, the parameterized transition based analog model including transition timing parameters associated with each entry of the logical transition data. The method may further include generating an analog model for the logic cell based on the parameterized transition based analog model and one or more analog netlists characterizing the logic cell.
    • 一种方法可以包括基于逻辑单元的数字模型的分析来生成用于逻辑单元的逻辑转换数据,逻辑转换数据包括指示响应于输入转换而发生的逻辑单元的输出转换的至少一个条目 的逻辑单元。 该方法还可以包括为逻辑单元生成参数化的基于过渡的模拟模型,参数化的基于过渡的模拟模型包括与逻辑转换数据的每个条目相关联的转换时序参数。 该方法还可以包括基于参数化的基于过渡的模拟模型和表征逻辑单元的一个或多个模拟网表来为逻辑单元生成模拟模型。