ELECTRONIC STETHOSCOPE

在过去，无数的电子听诊器被开发出来 50年了，但没有一个人取得了重大成功。 但是，在这方面， 小型液晶显示器（LCD）的最新发展和进展 在数字信号处理组件重新点燃了兴趣， 开发一种轻便、便携、电池供电的 将提供视觉输出而不是（或另外 到）通常的音频输出。 这项创新可能特别 对于有听力问题的老年医生以及 便于输出信号的解释。 音频信号的直接视觉显示是没有用的;相反， 更像是心电图信号，但有很大的不同， 光谱和特性。

Countless electronic stethoscopes have been developed during the past fifty years, but none has achieved any significant success. However, recent developments in small liquid crystal displays (LCDs) and advances in digital signal-processing components have rekindled interest in the possibility of developing a lightweight, portable, battery-powered instrument that would provide a visual output instead of (or in addition to) the usual audio output. This innovation could be particularly valuable to older physicians with hearing problems, as well as in facilitating the interpretation of the output signal. Direct visual display of the audio signal is not useful; rather, something more like an ECG signal, but having a greatly different spectrum and character, is desired.