Nicholls et al are mentioned and they hold the patent as shown in the attached pic...
> -----Ursprungliche Nachricht----- > Von: [email protected] > [mailto:[email protected]] Im Auftrag von Azelio Boriani > Gesendet: Donnerstag, 16. Februar 2012 13:35 > An: Discussion of precise time and frequency measurement > Betreff: Re: [time-nuts] Testing a LPRO RB > > > There is no mention in the AN1002 (GPS disciplined Stratum 2 > clock) of the US patent 7,711,230 and that patent (on optical > waveguides) has no mention of temperature correction or > tempco extraction... > > On Thu, Feb 16, 2012 at 8:55 AM, Ulrich Bangert > <[email protected]>wrote: > > > Mark, > > > > > John DuBois and I did > > > quite a bit of work to find a way to unwind the osc > parameters from > > > the available unstabilized reported data using SciLab on the log > > > files, but nothing seemed to work reliably. > > > > For some information on how to do that have a look at > Analog Devices > > application note AN-1002 and at the there mentioned US patent US > > 7,711,230. > > > > Best regards > > Ulrich Bangert > > > > > -----Ursprungliche Nachricht----- > > > Von: [email protected] > [mailto:[email protected]] > > > Im Auftrag von Mark Sims > > > Gesendet: Donnerstag, 16. Februar 2012 01:56 > > > An: [email protected] > > > Betreff: [time-nuts] Testing a LPRO RB > > > > > > > > > > > > Lady Heather's osc drift rate calculation does assume that > > > the temperature has been stabilized. John DuBois and I did > > > quite a bit of work to find a way to unwind the osc > parameters from > > > the available unstabilized reported data using SciLab on the log > > > files, but nothing seemed to work > > > reliably. Generally the data analysis croaked because of > > > things like noise and matrix singularities. > > > > > > Also, if you do stabilize the temperature, it is very easy > > > to get the osc tempco. Just turn off the stabilization and > > > see how the osc drifts as it warms up. > > > > > > _______________________________________________ > > > time-nuts mailing list -- [email protected] > > > To unsubscribe, go to > > > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > > > and follow the instructions there. > > > > > > _______________________________________________ > > time-nuts mailing list -- [email protected] > > To unsubscribe, go to > > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > > and follow the instructions there. > > > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there.
<<attachment: Nicholls.jpg>>
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