USA As Represented by Secretary of the Navy

Ratheon Company

Anthony Kiefer Newman

Richard A Katz

Michael S Lawee

An apparatus and method for identifying the timing of the onset of and duration of an event characteristic of sleep breathing disorder while a patient is awake. Chaotic processing techniques analyze data concerning a cardio-respiratory function, such as nasal air flow. Excursions of the resulting signal beyond a threshold provide markers for delivering the average repetition rate for such events that is useful in the diagnosis of obstructed sleep apnea and other respiratory dysfunctions.

Method and apparatus for diagnosing sleep breathing disorders while a patient in awake

An iterative process for computing the trajectory of one object containing a transmitter relative to another object containing a plurality of receivers is disclosed. The process contains a subprocess which estimates the trajectory band from the Doppler shifts in the signals measured by the receivers. The process contains another subprocess where the received Doppler signals are filtered by filter adapted to select the Doppler signals which would have been produced by an object following the trajectory estimated by the first subprocess.

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Woburn, MA, United States of America

Anthony Kiefer Newman