Shulou(Shulou.com)11/24 Report--

CTOnews.com December 2 news, citing foreign technology media Patently Apple reported that the United States Trademark and Patent Office (USPTO) recently announced a list, Apple has obtained a "smart ring" patent design. According to the patent description, the smart ring can be used with AR, VR and MR apps.

CTOnews.com learned that the core of the patent is the development of a sensor called SMI (self-mixing interferometry). According to the patent description, the smart ring can "sense the existence of the object, the distance of the object, the movement of the object (such as speed, acceleration or direction), etc.", which can improve the sensitivity or speed of the operation of the sensor system.

More specifically, the patent relates to a SMI-based gesture input system in which signals received from one or more SMI sensors can be used to identify user gestures. The SMI sensor can detect the relative motion (displacement) of the SMI sensor and the target (such as a surface or object) through the wavelet length resolution.

When the displacement measurement is associated with the measurement time, the velocity of the target can also be measured. In addition, by modulating the SMI sensor using known wavelength modulation (for example, triangle modulation), the absolute distance from the SMI sensor to the target can be measured. "

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