[time-nuts] WWVB for Time Nuts

Ivan.Cousins ijcousins at frontier.com
Sat Aug 9 17:42:38 EDT 2014

Time nuts:
Here is a prediction of how it could go on the WWVB chip situation.
Moors law will under price the custom chip price in small (and even 
large) volumes.

It already has.

A WWVB receiver can now be done on an Arduino microprocessor with a 
little help from an antenna.

The custom chip price will loose this battle.

The custom chip takes longer to develop.

A simple download can upgrade a simple carrier tracking receiver to a 
full demodulating receiver.

The web site that supplies that free software upgrade can be anywhere on 
this planet.

For lawyers to do their job they need a target.

Do not give them a target to aim at.

Or give them so many targets that they still can not do their job.

The antenna-receiver-Arduino board can be made in China and purchased on 

I feel sorry for the team with patent(s), they are competing against the 
whole world, and do not know it yet.

This is a prediction of how it could happen.

Any takers.

Ivan Cousins

On 8/9/2014 12:56 PM, Bob Camp 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<brooke at 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
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