Bob Indeed I have no plans to sell anything. If I can ever get a digital solution working for wwvb. What I can say is whatever I do will be shared here. For good or bad. Regards Paul WB8TSL
On Sat, Aug 9, 2014 at 3:56 PM, Bob Camp <kb...@n1k.org> wrote: > Hi > > Keep in mind that the patent(s) do not keep you from building a part for > your own use. Regardless of what they do / do not patent, a TimeNut can > still build (and use for themselves) what ever they wish. > > ———— > > Now, if you (after careful examination) believe that the privately held > patents keep you from building a receiver for a Federally Funded service - > talk to your elected representatives. They are the ones who can / will fire > up a committee to look into this sort of stuff. I think I would want to > have some information on license costs before I made that phone call though. > > Bob > > On Aug 9, 2014, at 1:49 PM, Brooke Clarke <bro...@pacific.net> wrote: > > > Hi: > > > > I've been reading papers by Yingsi Liang who works for Xtendwave and she > seems to be the key person developing the new clocks. > > I've starting collecting info on my web page: > > http://www.prc68.com/I/Loop.shtml#PhaseMod > > I don't understand how Xtendwave can get patents when their work was > partially funded by NIST? > > > > There are different modes that have different frame times, the Long mode > takes 17 minutes for each of: Time, DST/LY state & Date. That's to say it > takes 51 minutes to get all three. Since the modulation format is in > complete words their receiver has a problem with the inaccuracy of common > watch crystals. This says that for those who have a stable LO it's much > easier to receive the BPSK signal over the times needed (probably for all > formats). > > > > PS a new paper "Receiver Design of Radio-Controlled Clocks Based On The > New WWVB Broadcast Format" came out a few days ago. > > > > PPS I've been having fun with theodolites and have made a table > "Accuracy of Visual Fixes" on my Navigation page with columns headed Time, > Angle & Distance based on the Earth rotation at: > http://www.prc68.com/I/Nav.shtml#Accuracy > > The idea is that a theodolite with some angular accuracy needs to be > used with a clock that has a equivalent accuracy to get a position fix > within some distance. > > > > [OT] PPPS I'm also having fun looking at the pond water in my back yard. > > http://www.prc68.com/I/Labophot.html#Pond_Water > > > > -- > > Have Fun, > > > > Brooke Clarke > > http://www.PRC68.com > > http://www.end2partygovernment.com/2012Issues.html > > http://www.prc68.com/I/DietNutrition.html > > > > _______________________________________________ > > time-nuts mailing list -- time-nuts@febo.com > > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > > and follow the instructions there. > > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.