| 摘要 |
An electronic sphygmomanometer in which the gain of a Korotkoff sound amplifier for recognition of systolic blood pressure differs from that for recognition of diastolic blood pressure. A processor raises the amplifier gain upon recognizing systolic pressure, thereby establishing a mode for recognition of diastolic pressure. Alternatively, a trigger circuit, which produces a trigger signal in response to an input signal from the Korotkoff amplifier, has its threshold level set by the processor to a first value for recognition of systolic pressure and to lower second value for recognition of diastolic pressure, the lower second value being established following recognition of the systolic pressure.
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