[time-nuts] WWVB BPSK patent status

Mike Harpe mike at mikeharpe.com
Fri Aug 8 10:01:41 EDT 2014

>From my reading of the archives and research it appears that the design for
a BPSK WWVB receiver probably has a patent conflict.

Isn't this a rehash of the old Heathkit patent on radio clocks that held
back their adoption for years?

I have begun work on a BPSK receiver for WWVB using an FPGA.

Someone should look into why the NIST did this at all since the receiver
design got a patent slapped on it right away.

Mike Harpe, N4PLE
Sellersburg, IN

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