Apple Watch could detect hand movements and gestures accurately

A recent patent called “Electrodes for gesture recognition” (“Electrodes For Gesture Recognition”) reveals the Californian company’s plans to integrate electrodes into the smartwatch’s wristband, capable of detecting muscle movements and the minimal electrical activity associated with finger gestures.

Hand gestures detected accurately

The innovation aims to overcome the limitations of current gesture detection methods, such as touch or proximity sensors, which have a limited range, or cameras, which require direct line of sight and complex image processing. Apple also points out that wearable devices such as controllers or gloves are less socially acceptable than smartwatches.

The proposed electrodes would be configured to detect electromyography (EMG) signals that result from muscle contraction. Specifically, they could capture electrical activity in the flexor and extensor muscles of the forearm and wrist. This approach would allow for more precise and accurate detection of finger movements to offer a wider range of possible gestures to control the Apple Watch.

The patent suggests that multiple rows of electrodes and conductive wiring could be embedded in the smartwatch’s strap. Removable electrical connections, such as spring-loaded pins, would transmit signals from the electrodes to processing circuitry in the device’s housing.

Expanding Apple Watch Features

The technology could expand existing Apple Watch features like the Double-Tap gesture, which triggers an action by tapping the thumb and index finger together. With electrodes around the wrist, the smartwatch could detect more subtle finger movements, opening the way to new forms of interaction.

While the patent focuses primarily on the technical aspects of detecting EMG signals, it hints at a wide range of potential applications. This innovation could transform the way users interact with the Apple Watch and other connected devices, making controls more discreet and intuitive.