Invention Grant
US09338278B2 Determining the distance and/or acoustic quality between a mobile device and a base unit 有权
确定移动设备和基本单元之间的距离和/或声学质量

Determining the distance and/or acoustic quality between a mobile device and a base unit
Abstract:
To determine the distance and/or acoustic quality between a mobile device and a base unit, an acoustic signal is received by a microphone in one of said mobile device and base unit. A correlation of a second signal with the received acoustic signal is determined. An acoustic quality and/or a distance between the mobile device and the base unit is determined based on one or more peaks in the result of the step of determining the correlation.
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