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    • 135. 发明授权
    • Methods for controlling a system in a vehicle using a transmitting/receiving transducer and/or while compensating for thermal gradients
    • 使用发射/接收换能器和/或在补偿热梯度的同时控制车辆中的系统的方法
    • US06856876B2
    • 2005-02-15
    • US10341554
    • 2003-01-13
    • David S. BreedWilbur E. DuVallWendell C. Johnson
    • David S. BreedWilbur E. DuVallWendell C. Johnson
    • B60R21/01B60R21/015G06F7/00
    • B60R21/01536B60R21/01526
    • Methods for controlling a vehicle system in which waves are directed from a transducer into the passenger compartment and is reflected off or modified by an object in the passenger compartment and received by the same or a different transducer. One or more techniques are used to compensate for thermal gradients in the passenger compartment and/or enable the use of a single transducer to send and receive waves, for example, a tubular mounting structure for the transducers, electronic reduction of ringing of the transducer, mechanical damping of the transducer cone, shaped horns, grills and reflectors for the output of the transducers to precisely control the beam pattern, a logarithmic compression amplifier, a temperature compensation method based on change in transducer properties with temperature and/or a dual level network, one level for categorization and the second for occupant position sensing.
    • 用于控制车辆系统的方法,其中波浪从换能器引导到乘客舱中并被乘客舱中的物体反射或改变,并由相同或不同的换能器接收。 使用一种或多种技术来补偿乘客舱中的热梯度和/或使得能够使用单个换能器来发送和接收波,例如用于换能器的管状安装结构,换能器的振铃的电子减少, 传感器锥体,成形喇叭,格栅和反射器的机械阻尼,用于输出换能器以精确控制波束图案,对数压缩放大器,基于换能器特性随温度变化和/或双电平网络的温度补偿方法 一级分类,另一级用于乘员位置感测。