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发明授权
CN105027582B 改进的参量换能器及相关方法 有权

改进的参量换能器及相关方法
摘要：
一种超声波音频扬声器包括发射器和驱动器。发射器能够包括具有导电表面的第一层；具有导电表面的第二层；和设置在第一导电表面和第二导电表面之间的绝缘层，其中，第一层和第二层与绝缘层以接触关系设置的。驱动器电路能够包括两个输入端和两个输出端，输入端配置为经耦合以从放大器接收音频调制的超声信号，其中，第一输出端耦合到第一层的导电表面，并且第二输出端耦合到第二层的导电表面。
摘要（英）：

An ultrasonic audio speaker includes an emitter and a driver. The emitter can include a first layer having a conductive surface; a second layer having a conductive surface; and an insulating layer disposed between the first and second conductive surfaces, wherein the first and second layers are disposed in touching relation to the insulating layer. The driver circuit can include two inputs configured to be coupled to receive an audio modulated ultrasonic signal from an amplifier and two outputs, wherein a first output is coupled to the conductive surface of the first layer and the second output is coupled to the conductive surface of the second layer.

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