Patent ID: 8545413
Filing Date: 2013-10-01
Classification: A61B

Abstract:
1. A non-contact apparatus for monitoring cardiopulmonary activity signals, comprising: a pulse-series generator configured to generate a series of probing pulses and a series of reference pulses, comprising: a transmitting antenna configured to transmit the probing pulses to a chest portion, wherein the chest portion scatters the probing pulses to generate a series of scattered pulses; a receiving antenna configured to receive the scattered pulses; a mixer including a first input port configured to receive the reference pulses and a second input port electrically connected to the receiving antenna to receive the scattered pulses; and a signal-processing module configured to generate the cardiopulmonary activity signals after the scattered pulses and the reference pulses are processed by the mixer, wherein the transmitting antenna and the receiving antenna are separate antennas.