Power Nap allows current Macs to perform certain background tasks while sleeping. The idea is that by doing things like updating your calendar, photos, notes, and so on, even when the Mac is in sleep mode, it will be ready for you to get to work as soon as you wake it.
This patent would appear to extend Power Nap’s capabilities to using the camera to look out for someone approaching the Mac. If it detects a person, it then powers-up face-recognition functionality to see if it recognizes them as the owner of the Mac. If it does, it could fully wake and unlock the Mac.
With Face ID now supported on both iPhone and iPad, it seems a no-brainer that it will come soon to the Mac too. Whether this advanced functionality will be supported is impossible to tell: as we always note, Apple patents many things it never does. But this would certainly be a cool feature that could wow people at a Mac keynote, so I’d say there’s a decent chance that this one will make the cut.
read more at https://9to5mac.com/2019/08/06/face-id-on-macs-2/
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