Re:Snap sold fewer than 42K Spectacles, down 35% in Q2
by Rjevski on Monday August 14, 2017 @07:55PM
(#15014137)
I think the problem is that in this case Bluetooth is just not fast enough to transfer large amounts of video data. What they should do is use BT to negotiate details of an ad-hoc Wi-Fi network and use that larger pipe to send the actual data.
[ Parent
| on HN ]
Re:Snap sold fewer than 42K Spectacles, down 35% in Q2
by cornstalks on Tuesday August 15, 2017 @01:57AM
(#15015873)
You basically just described Bluetooth 3.0 + HS[1]. The Bluetooth connection is used to establish an 802.11 link, over which data is transferred. It's only (up to) 24 Mbit/s, so it's still slower than some (direct) Wi-Fi alternatives, but it's much faster than normal Bluetooth connections.
[1]: https://en.wikipedia.org/wiki/Bluetooth#Bluetooth_3.0_.2B_HS
Re:Snap sold fewer than 42K Spectacles, down 35% in Q2
by omtinez on Monday August 14, 2017 @09:11PM
(#15014529)
That is exactly how the Spectacles work. Bluetooth is only used for transfer as a fallback mechanism.
Re:Snap sold fewer than 42K Spectacles, down 35% in Q2
by acchow on Monday August 14, 2017 @08:05PM
(#15014196)
Yup. This is how Wifi Direct and Apple's Airdrop work.
Re:Snap sold fewer than 42K Spectacles, down 35% in Q2
by lathiat on Tuesday August 15, 2017 @01:25AM
(#15015740)
This random thing I found claims about 1-1.5MB/s possible at least using the multipeerconnectivity libraries. ~ 0.1MB/s for bluetooth-only.
https://github.com/thaliproject/Thali_CordovaPlugin/issues/1...