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    • 1. 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。