Apple is investigating how the addition of electrodes to Apple Watch bands could detect the muscle movement and minute electrical activity when a user makes just about any finger gesture.
A newly-granted patent, “Electrodes For Gesture Recognition,” says that such detection is necessary because other forms of gesture control have problems.
“In particular, a person’s physical motions, such as eye gaze, body movement and the like can be detected and tracked over time as inputs to the computing system,” it says. “Hand gestures, in particular, can be detected by touch or proximity sensors in a touch sensing panel.”