Patent 7798144 was granted and assigned to ResMed on September, 2010 by the United States Patent and Trademark Office.
A flow generator for generating a supply of pressurized air to be provided to a patient for treatment includes a housing, a blower provided to the housing, and a projection unit provided to the housing. The blower is operable to provide a pressurized flow of air at an outlet. The projection unit is operable to project an image onto a surface adjacent the housing.