Lightbulbs Could Replace Wi-Fi Hotpsots

http://www.cellular-news.com/story/33993.php

by mariorz • 18 years ago

13 10 18 years ago

cellular-news.com

vulpes• 18 years ago

Only problem: pockets

DougBTX• 18 years ago

I wonder how two-way communication would work - flashing your laptop screen?

jacobscott• 18 years ago

probably a dedicated peripheral, which you need to capture the light patterns anyway (right?).

eru• 18 years ago

Bulbs won't work. The article is better than its heading, though. (LED do work.)

josefresco• 18 years ago

What if I work in the dark?

lpgauth• 18 years ago

So how do you seed your torrents at night? Sleep with the light on?

iamadog• 18 years ago

I think it can use be adapted to use infra-red.

tocomment• 18 years ago

On a similar note I was wondering if the iPhone (screen or elsewhere) could produce enough IR radiation to function as a TV remote? Any thoughts?

Perhaps flash the screen backlight to produce IR signals?

wmf• 18 years ago

You'd have to flash it at something like 38 kHz, but I have a feeling it doesn't support that.

lowkey• 18 years ago

Just in case there are any angels or venture investors out there, we are working on a startup that competes directly with this technology. My co-founder, easily the smartest engineer I have ever known, has been developing LED drivers and controllers for the past 3 years. This evening he called me to let me know he had passed the 4 Mbit/sec threshold. His goal is to transmit full HD video over optical. This is significant because there is no other method for transmitting Hi-def video wirelessly.

It is incredible what can be done with low cost micro-controllers and a little low-level assembly know-how.

Lightbulbs Could Replace Wi-Fi Hotpsots

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