Sometime years ago, I had heard (IIRC on this forum) that 1-wire =20
technology is patented, such that I can't implement my own slaves. =20
I've not come up with the patent yet, and Maxim hasn't responded to me =20
yet.  Anyone know if this is true, if the patent is still valid, and =20
what the general details are?

I want to bi-directional communication to a PIC application, and have =20
only 1 wire available.  I also have no room for additional (1-wire =20
slave) chips, but that would be pointless anyway as that slave chip =20
would need more than one wire for communicating with the PIC.

If this is not doable, I may end up rolling my own protocol that can =20
work with a single wire, but I'd need to know what specifically is =20
patented with respect to 1-Wire technology.

Cheers,
-Neil.


--=20
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