Future Apple Watches, an ‘Apple Ring’ could respond to skin-to-skin contact

Future Apple Watches and an “Apple Ring” could respond to skin-to-skin contact, as hinted by a newly granted Apple patent (number US 11941175 B2).

About the patent

The patent relates generally to systems and methods of detecting skin-to-skin contact. More specifically, it involves detecting contact between two hands or between two fingers for input in virtual reality or augmented reality environments.

In the patent filing Apple says that many types of input devices are presently available for performing operations in a computing system, such as buttons or keys, mice, trackballs, joysticks, touch sensor panels, touch screens and the like. In some examples, contact between two different parts of a user’s body may be used for input. 

For example, cameras in a head-mounted display can be used to track movement of fingers to detect a finger in contact with an opposite hand, or to track movement of a finger along an opposite hand surface. Additionally or alternatively, a radio frequency-based system can be used to detect a finger in contact with an opposite hand, or to track movement of a finger along an opposite hand surface. 

However, Apple says that camera-based systems and/or radio frequency-based systems “may have difficulty detecting the difference between a finger touching the opposite hand or proximate to without contacting (hovering above) the opposite hand.” Additionally, camera-based systems require the finger and opposite hand be in the field of view of the cameras for operation.

As for an “Apple Ring,” Apple is working on a smart ring that can be worn on a user’s finger to track their health metrics, according to the Korean publication, Electronic Times. If true, that’s not particularly surprising as Apple has filed for, and been granted, multiple patents for an “Apple Ring,” and many of them involve features beyond health metric tracking.

Summary of the patent

Here’s Apple’s abstract of the patent: “Contact or movement gestures between a first body part and a second body part can be detected. Sense circuitry can be configured to sense a signal at the sense electrode (e.g., configured to contact the second body part) in response to a drive signal applied to the drive electrode (e.g., configured to contact the first body part). Processing circuitry can be configured to detect contact in accordance with a determination that one or more criteria are met (e.g., an amplitude criterion and a non-distortion criterion). Additionally or alternatively, processing circuitry can be configured to detect a movement gesture in accordance with a determination that one or more criteria are met (e.g., a contact criterion and a movement criterion).”