Method and apparatus for using multiple leads for QRS detection

Details Method and apparatus for using multiple leads for QRS detection Method and apparatus for using multiple leads for QRS detection

1996-12-16

1997-12-16

Kamm, William E.

Surgery

Truss

Pad

128901, 128708, A61B 50402

Patent

active

056973780

ABSTRACT:
A method and apparatus for reducing noise in an output signal produced from a plurality of input signals indicative of a repetitious phenomena exhibited by a signal source. The apparatus comprises: (a) signal receiving means adapted for being coupled to a plurality of sensors positioned with respect to a signal source such that each of the sensors is subjected to a unique representation of a repetitious phenomena exhibited by the signal source, for obtaining from the sensors a plurality of received signals in which noise may be present; (b) signal detecting means for detecting the occurrence of the phenomena in each of the plurality of received signals; (c) signal strength determining means responsive to the plurality of received signals for determining the signal strength of the phenomena in each of the plurality of received signals; and (d) proportional adding means for additively combining the plurality of received signals together for developing a combined signal, with each received signal having a weight in the combined signal which is in direct proportion to the signal strength of the phenomena in that signal as determined by the signal strength determining means, the output signal indicative of the phenomena being developed from the combined signal. In a preferred embodiment the signal detecting means is responsive to the output signal of the proportional adding means.

REFERENCES:
patent: 5381803 (1995-01-01), Herleikson et al.
patent: 5421342 (1995-06-01), Mortara
patent: 5479933 (1996-01-01), Atarius et al.
patent: 5490515 (1996-02-01), Mortara
patent: 5564428 (1996-10-01), Soernmo et al.
patent: 5598848 (1997-02-01), Swanson et al.

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