[time-nuts] WWVB Now a Monopoly

J. Forster jfor at quikus.com
Wed Sep 26 21:53:23 UTC 2012


Or pay XW any royalty they demand (Viz Lipitor or Xyvox).

This could well be a high hurdle any other entrants into the marketplace.

-John

=================


> With all due respect;
>
> What I dislike is the pre-entry of a company that has direct knowledge of
> the format, tying up the easy (and less expensive) methods of decoding the
> time data using prior inside information and the patent system.
>
> Let's say you find out what this PM modulation format is and decide to
> make
> a NTP server based on the new format. Much to your surprise, the method
> you
> want to design to has already been patented (by XW). The only option you
> have is to possibly design with a more expensive and hence less marketable
> device.
>
> Sorry to keep beating this poor horse.
>
> Regards,
> Tom
>
>
> ----- Original Message -----
> From: "Bob Camp" <lists at rtty.us>
> To: "'Discussion of precise time and frequency measurement'"
> <time-nuts at febo.com>
> Sent: Wednesday, September 26, 2012 5:06 PM
> Subject: Re: [time-nuts] WWVB Now a Monopoly
>
>
> Hi
>
> I don't have a problem with going after a known format. What I have been
> worried about is the existence of a portion of the format that we simply
> do
> not know about (yet).
> Of less concern are the minor details about the actual transmission. For
> instance: Added AM modulation (or not) to zero carrier at the point of
> phase
> change is as yet unmentioned.
>
> Bob
>
> -----Original Message-----
> From: time-nuts-bounces at febo.com [mailto:time-nuts-bounces at febo.com] On
> Behalf Of Poul-Henning Kamp
> Sent: Wednesday, September 26, 2012 2:05 PM
> To: Discussion of precise time and frequency measurement
> Subject: Re: [time-nuts] WWVB Now a Monopoly
>
> In message <50633BF8.9050705 at ussc.com>, Clint Turner writes:
>
>>In reviewing the NIST document, I don't see anything particularly
>>difficult about the new format - either in terms of extracting the time
>>or phase/frequency information from the transmissions.
>
> As a somewhat seasoned VLF SDR radio-nut, I must admit that I find
> the yelling of bloody murder over a so simple and well documented
> transmission format.
>
> Class action suit because they *improve* your VLF time/freq reference
> signal and document the new format ?
>
> Really ?
>
> --
> Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
> phk at FreeBSD.ORG         | TCP/IP since RFC 956
> FreeBSD committer       | BSD since 4.3-tahoe
> Never attribute to malice what can adequately be explained by
> incompetence.
>
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