Lynette Ross - Mountain View CA, US Dirk Fengels - Santa Cruz CA, US Edwin Pearce - Golden CO, US James Mault - Evergreen CO, US Christopher Sandys - Stanwood WA, US Tom Kilbourn - Saratoga CA, US
International Classification:
A61B005/08
US Classification:
600/532000
Abstract:
A respiratory analyzer comprises a flow module, having a flow tube through which the flow rate of gases is determined using a flow rate meter, and a computation module, in communication with the flow module, operable to determine a flow rate of respired gases. The computation module may also be operable to determine a metabolic rate of the subject.
Method Of Controlling A Machine Connected To A Display By Line Of Vision
A method of controlling a machine connected to a display comprising an absolute pointing method providing a wearable apparatus () including an image sensor () worn on an operator's head () or ear and adjustable so that the pointing direction () of the image sensor () is congruent with the operator's focus point on said display () when relative head-eye movements are small. A processor () analyzes images () of the display environment taken by the image sensor () and determines the pointing direction () of the image sensor with respect to the display outline (). The wearable apparatus () further includes a microphone () for initiating actions on said machine by audio commands. Other means for initiating actions includes detecting certain head movements and a special keyboard driver. The method further comprises means for feedback from the wearable apparatus () to the machine. A wireless configuration is provided, including a receiver apparatus () connected to the machine, where a software driver positions the pointer () on the display area () and responds to operator commands. Means for facilitating display outline recognition to increase performance and reliability is provided and consists of no more than eight infrared reflective stickers () placed around the perimeter of the display area () and an infrared source () located next to the image sensor ().