Shenzhen Goodix Technology has patented a method for detecting the wearing state of a wearable device. The method involves emitting light of multiple wavelengths, receiving reflected light, and analyzing intensity ratios to determine if the device is being worn based on specific fluctuation thresholds. GlobalData’s report on Shenzhen Goodix Technology gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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According to GlobalData’s company profile on Shenzhen Goodix Technology, AI-assisted biometric recognition was a key innovation area identified from patents. Shenzhen Goodix Technology's grant share as of July 2024 was 49%. Grant share is based on the ratio of number of grants to total number of patents.
Wearing state detection method for wearable devices
The patent US12072751B2 outlines a method and device for detecting the wearing state of a wearable device using light emission and reception technology. The method involves a light emitting unit that emits light of at least two different wavelengths in a time-divided manner. A light receiving unit captures the reflected light from the subject, allowing for the calculation of the intensity of the reflected light corresponding to each wavelength. By analyzing the fluctuation range of the light intensity ratio—defined as the ratio of the intensities of reflected light from the different wavelengths—the system can determine whether the wearable device is in a wearing state. Specifically, if the fluctuation range meets or exceeds a predetermined threshold, the device is considered to be worn; otherwise, it is classified as not being worn.
Additionally, the patent describes further classifications of the wearing state. If the fluctuation range is above the first threshold but below a second, higher threshold, the device is deemed to be in a "well wearing state." Conversely, if the fluctuation range exceeds the second threshold, it indicates a "bad wearing state." The device is designed to emit light in various combinations, including green, red, and infrared wavelengths, to enhance detection accuracy. Furthermore, the system can provide user prompts based on the detected wearing state, encouraging proper usage of the wearable device. This innovative approach aims to improve user experience and ensure the effective functioning of wearable technology.
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