Patent ID: 9579060
Date: 2017-02-28
CPC Classifications: A41D,A42B,A61B

Claim:
1. A dry electrode method of collecting electrocardiogram (ECG) signals of a subject comprising: placing on the subject's head a headgear apparatus for acquiring electrophysiological signals, the headgear apparatus comprising a hat, helmet, earpiece or eyeglasses adapted to fit snugly to, and place light pressure on, the head or in an ear of a subject, and a plurality of dry electrodes each comprising a lower surface adapted to contact the subject's skin, the dry electrodes being disposed along and connected to the headgear, the dry electrodes each comprising a plurality of low aspect ratio protruding surface features on the lower surface; measuring with the dry electrodes of the headgear apparatus at least one electrophysiological signal; amplifying and filtering the at least one electrophysiological signals to produce ECG signals; and transmitting or storing the ECG signals for collection, wherein the headgear apparatus further comprises at least one other physiological sensor adapted to acquire a non-electrophysiological signal, and further comprising the step of deriving at least one other metric based at least in part on the ECG signals and at least in part on the non-electrophysiological signal, the at least one other metric selected from the group consisting of stress, preparedness, calories expended, oxygen consumption (VO