SYSTEM AND METHOD FOR ACQUIRING PHYSIOLOGICAL SIGNALS OF A P ATIENT

摘要

A host directs a microprocessor to command each of a plurality of amplifiers to process signals relative to individual ones of a plurality of physiological signals in a patient. The signals are provided to the amplifiers by terminals which are connected to different parts of the patient's body. The terminals provide signals to the amplifiers simultaneously but the microcompressor processes the signals sequentially. The microprocessor tests and calibrates the amplifiers before processing the signals from the terminals. The amplifiers have substantially the same construction regardless of where the associated terminals are disposed on the patient's body. The amplifiers may be provided with characteristics to eliminate noise and to provide output signals in a limited frequency range in which the relative phases of the signals in the limited frequency range are preserved.