Acoustic window identification
First Claim
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1. A method for visualizing an acoustic window of a person comprising the steps of:
- (a) positioning a multi-channel acoustic sensor array having a plurality of sensors on the chest of a subject;
(b) determining optimal weights and an estimated SNR of each of the channels of a multiple channel acoustic sensor array;
(c) mapping the optimal weights scaled to the estimated SNR of each of the channels of the multiple channel acoustic sensor array to the locations of each sensor in said array, wherein said array comprises at least four sensors;
(d) identifying a plurality of the sensors that correspond to the sensor channels that have high optimal weights, the plurality of sensors being less than all of the sensors in said array; and
(e) identifying a perimeter enclosing the sensors associated with the sensor channels identified in step (d) to define the bounds of an acoustic window for acoustic diagnostic evaluation of the subject, wherein the sensors associated with the sensor channels identified in step (d) are associated with a plurality of chest locations of the subject.
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Abstract
Methods for identifying and/or visualizing an acoustic window suitable for passive acoustic coronary heart disease evaluations by mapping the relative SNR distribution on the channels on an array of a plurality of sensors to nominal locations on a person'"'"'s chest of each sensor in the acoustic sensor array and identifying a plurality of sensor locations that correspond to the highest channel SNR'"'"'s is described and/or sizing the acoustic sensor array to correspond with the identified acoustic window.
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Citations
16 Claims
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1. A method for visualizing an acoustic window of a person comprising the steps of:
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(a) positioning a multi-channel acoustic sensor array having a plurality of sensors on the chest of a subject;
(b) determining optimal weights and an estimated SNR of each of the channels of a multiple channel acoustic sensor array;
(c) mapping the optimal weights scaled to the estimated SNR of each of the channels of the multiple channel acoustic sensor array to the locations of each sensor in said array, wherein said array comprises at least four sensors;
(d) identifying a plurality of the sensors that correspond to the sensor channels that have high optimal weights, the plurality of sensors being less than all of the sensors in said array; and
(e) identifying a perimeter enclosing the sensors associated with the sensor channels identified in step (d) to define the bounds of an acoustic window for acoustic diagnostic evaluation of the subject, wherein the sensors associated with the sensor channels identified in step (d) are associated with a plurality of chest locations of the subject. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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Specification