scoring rules, five stages are defined: awake, REM, and three types of non-REM sleep.4 The non-REM stages include stage N1 (light or transitional sleep), st...

https://www.apple.com/jp/healthcare/docs/site/Estimating_Sleep_Stages_from_Apple_Watch_Sept_2023.pdf

local dimming systems. The extreme brightness of the LEDs can cause light leakage—or “blooming”—when LED zones are larger than the pixel size of an image’s ...

https://www.apple.com/jp/pro-display-xdr/pdf/Pro_Display_White_Paper_Feb_2020.pdf

tracking. Safari Privacy Overview | November 2019 4 What are cookies? Cookies are small data files that websites save on a device. They can be used for a va...

https://www.apple.com/jp/safari/docs/Safari_White_Paper_Nov_2019.pdf