US 12,144,924 B2
Acoustic detection for respiratory treatment apparatus
Liam Holley, Sydney (AU); Dion Charles Chewe Martin, Sydney (AU); and Steven Paul Farrugia, Sydney (AU)
Assigned to ResMed Pty Ltd, (AU)
Filed by ResMed Pty Ltd, Bella Vista (AU)
Filed on Aug. 12, 2020, as Appl. No. 16/947,676.
Application 16/947,676 is a division of application No. 13/148,730, granted, now 10,773,038, previously published as PCT/AU2010/000140, filed on Feb. 10, 2010.
Claims priority of provisional application 61/253,172, filed on Oct. 20, 2009.
Claims priority of provisional application 61/233,554, filed on Aug. 13, 2009.
Claims priority of application No. 2009900561 (AU), filed on Feb. 11, 2009.
Prior Publication US 2020/0368469 A1, Nov. 26, 2020
Int. Cl. A61M 16/00 (2006.01); A61B 5/087 (2006.01); A61B 5/097 (2006.01); A61B 7/00 (2006.01); A61B 5/00 (2006.01); A61M 16/16 (2006.01)
CPC A61M 16/0069 (2014.02) [A61B 5/087 (2013.01); A61B 5/097 (2013.01); A61B 7/003 (2013.01); A61M 16/0051 (2013.01); A61M 16/026 (2017.08); A61B 5/7257 (2013.01); A61M 2016/0027 (2013.01); A61M 2016/0036 (2013.01); A61M 16/16 (2013.01); A61M 2205/15 (2013.01); A61M 2205/3365 (2013.01); A61M 2205/3375 (2013.01); A61M 2205/505 (2013.01); A61M 2205/52 (2013.01); A61M 2230/46 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A method for authenticating a user of a device comprising:
determining with a sound sensor a measure of sound of a sound generator within a sound conduit directed to an anatomical cavity of a user of a device; and
analyzing the measure of sound from the sound sensor with a processor by calculation of a cepstrum from the measure of sound; and
determining with the processor that the user is a pre-authorized user based on the analyzing, wherein the determining comprises permitting an operation of the device.