Probably so. Which leaves two alternatives:
Build a receiver anyway. XW will likely wait unitl it starts making money... then sue. A typical strategy. or Try to get a license and pay through the nose. Once again, we see the government picking winners and losers. How has that worked out for the taxpayers lately? -John ================== > The more likely problem is the "designer" of the new > modulation has written patents that sew up every way > they can think of to demodulate the signal. If they > did a good job with the patent, you won't be able to > design a receiver that demodulate the signal without > patent infringement. > > -Chuck Harris > > Peter Monta wrote: >> Hi John, >> >> Thank you for clarifying the openness of the transmission format. >> Could I ask whether there is any scenario under which aspects of the >> signal transmission design might be patented? If companies or >> individuals wish to patent aspects of receiver design, that's fine, >> but I'd be uncomfortable with a patent-encumbered transmission format. >> >>> ... It is an unfortunate consequence of improving the reception >>> capability of our broadcast that this segment of our loyal user base >>> are so >>> adversely affected. The decision to proceed was not taken lightly, but >>> in >>> the end it was decided that the improvement in reception capability >>> (especially along the JJY interference prone East Coast) outweighed the >>> loss >>> of use of existing PLL devices. >> >> I suppose it's a matter of balancing the value of the PLL receivers >> and the loss of BPSK signal power to the residual carrier. If the >> power loss is small, though, say 0.5 dB or below, then given the large >> process gains of the advanced receivers, it might be worth >> considering. I don't imagine that the mere presence of residual >> carrier has any effect on the advanced receivers (since it is similar >> to interference from MSF and JJY, as you say), but please correct me >> if I'm wrong. >> >> Cheers, >> Peter > > _______________________________________________ > 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.
