| 摘要 |
An electronic stethoscope (100) for use on a patient, comprising first and second surfaces. The first surface is provided with a microphone (4), for receiving a first audio signal when placed in contact with the patient, and converting the first audio signal into a first electrical signal. The stethoscope further comprises a modulator for receiving the first electrical signal and modulating the first electrical signal to produce a second electrical signal. The second surface is provided with a speaker (9) for receiving the second electrical signal and converting the second electrical signal into a second audio signal. The second surface is fixed with respect to the first surface such that, when the first surface is placed in contact with a part of the patient's body, the second surface is directed away from that part of the patient.
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