Date: Fri, 26 Oct 2001 15:30:53 +0100 (BST) From: Andrew Gordon <arg-bsd@arg1.demon.co.uk> To: Poul-Henning Kamp <phk@critter.freebsd.dk> Cc: <freebsd-isdn@FreeBSD.ORG> Subject: Re: RFC1974 (STAC) Message-ID: <20011026145515.X37247-100000@server.arg.sj.co.uk> In-Reply-To: <29649.1004099726@critter.freebsd.dk>
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On Fri, 26 Oct 2001, Poul-Henning Kamp wrote: > In message <20011026132510.N36971-100000@server.arg.sj.co.uk>, Andrew Gordon wr > ites: > > >However, STAC holds patents on the compression algorithm, so the legal > >status of any implementation would be questionable. > > Do they only hold compression or also decompression patents ? All the ones I can find seem to describe the compression process only: http://www.delphion.com/details?pn=US05506580__ http://www.delphion.com/details?pn=US05532694__ http://www.delphion.com/details?pn=US05463390__ http://www.delphion.com/details?pn=US05414425__ http://www.delphion.com/details?pn=US05146221__ http://www.delphion.com/details?pn=US05126739__ http://www.delphion.com/details?pn=US05016009__ http://www.delphion.com/details?pn=US05003307__ so an implementation that implements decompression only (using non-compressed PPP packets on the transmit side) would seem to be OK. It's rather a narrow loophole though! > >It is also not clear that it offers much advantage in typical use, since > >.... > > STAC makes a good dent in the tcp headers and stuff... Even after they've been VJ-compressed? To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-isdn" in the body of the message
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