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    • 1. 发明授权
    • Acoustic touch signal dispersion response and minimization
    • 声学触觉信号色散响应和最小化
    • US08890852B2
    • 2014-11-18
    • US13485913
    • 2012-05-31
    • James L. AroyanFrancis LauJoel C. Kent
    • James L. AroyanFrancis LauJoel C. Kent
    • G06F3/043
    • G06F3/0436
    • A touch input system includes a substrate configured to support propagation of acoustic signals, a transducer in communication with the substrate and configured to transmit or receive the acoustic signals before or after the propagation, and an array of reflectors disposed on the substrate. Each reflector is oriented on an angle to redirect the acoustic signals along a path toward or away from the transducer. The transducer includes a stepped interface for the redirected acoustic signals. The stepped interface includes a set of interface elements distributed across a width of the acoustic signals and offset from one another along the path to compensate for the angle of the reflectors.
    • 触摸输入系统包括被配置为支持声信号的传播的基板,与基板通信并被配置为在传播之前或之后发送或接收声信号的传感器和设置在基板上的反射器阵列。 每个反射器以一定角度取向,以使声学信号沿着朝向或远离换能器的路径重定向。 换能器包括用于重定向的声信号的阶梯式接口。 阶梯式界面包括跨越声信号的宽度分布的一组接口元件,并且沿路径彼此偏移以补偿反射器的角度。