GPS time synch
necrodome at gmail.com
Wed Feb 21 00:56:41 CET 2007
On 2/20/07, Harald Welte <laforge at openmoko.org> wrote:
> On Tue, Feb 20, 2007 at 07:40:31PM +0100, Michael 'Mickey' Lauer wrote:
> > > It appears that most (if not all) GSM providers include time information
> > > in the signal. Certainly I have observed this in North America and
> > > Europe. It's probably a less power hungry way of keeping your clock in
> > > sync. Additionally, the GSM time info includes your local timezone and
> > > DST status information.
> > Yes that sounds like a good idea. I always wondered why I had to set
> > the time and date on my mobile phone when it's included in GSM anyway.
> > Harald, do we have access to this kind of information from Calypso?
> unfortunately, AFAICT we can only obtain the Timezone change
> notifications. Maybe the timezone. But definitely not the time.
> So by combining GPS time plus timezone from GSM, we might get it all
> - Harald Welte <laforge at openmoko.org> http://openmoko.org/
> Software for the world's first truly open Free Software mobile phone
umm, i don't know how much accuracy you need, but can't we just use an
ntp client over gprs?
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