On 5/8/2014 3:39 PM, Amos Shapira wrote:
Doesn't make sense to me:
1. The NTP server only needs the time signal, not the location (which
requires 4 satellites to be accurate), so even a signal from a single
satellite should be sufficient.
2. "getting a signal lock" is mostly a matter of having an up to date
satellite position almanac and recent location (within hundreds of
kilometers) in order to find the 4 required satellites. Finding the
first satellite is usually very quick.
3. Once the phone knows where it is, it's capable of keeping track of
a car moving at over 100 km/h for hours in order to update Google Maps
and friends. So the "keeping up" part is a solved problem, even if it
was an issue for the context of this thread.
Besides - the information should be there (the accurate time is a
crucial part of the positioning process). The main question from where
I stand now is how does Android provide access to the information
(which API and was it added to the multitude of reference clocks that
the standard NTP software comes with).
Don't forget that most of the people using this (if not all), just want
to timesync a LAN, and can stick said cellphone up against a window and
leave it there.
Geoff.
--
Geoffrey S. Mendelson 4X1GM/N3OWJ
Jerusalem Israel.
_______________________________________________
Linux-il mailing list
[email protected]
http://mailman.cs.huji.ac.il/mailman/listinfo/linux-il
