News for hackers. Stuff that matters.

A comment on Stanford researchers develop new method for waking up small electronic devices.

Re:Stanford researchers develop new method for waking up sma... by JoeAltmaier on Thursday February 15, 2018 @11:12AM (#16385137)
Some of us remember TV remote controls that operated ultrasonically. They were terrible - somebody rattles their keys or the dog walks by with its metal collar clinking - lots of ultrasonic noise created by those events and Chunk-Chunk-Chunk you would be three channels away from your nightly news.
[ Parent | on HN ]
Re:Stanford researchers develop new method for waking up sma... by lnanek2 on Thursday February 15, 2018 @01:30PM (#16386322)
Seems solvable in this case. Ultra-sound can wake up the device, but then it would take some other signal to have it do anything other than go back to sleep, like WiFi/Bluetooth/LAN/etc.. So you wouldn't get incorrect functionality triggering from accidental ultra-sound triggers, you'd just save less battery.
[ Parent | on HN ]