Re: 9-track tape drive (Was: Re: versioned filesystems in linux)

From: H. Peter Anvin (hpa@zytor.com)
Date: Sat Apr 26 2003 - 01:32:02 EST


Followup to: <Pine.LNX.4.33.0304251729490.18442-100000@router.windsormachine.com>
By author: Mike Dresser <mdresser_l@windsormachine.com>
In newsgroup: linux.dev.kernel
>
> On Fri, 25 Apr 2003, H. Peter Anvin wrote:
>
> > actually measure the real speed you can presumably vary the speed
> > arbitrarily, all the way up to the breaking point of the medium.
>
> I suspect that method is patented, as I have seen this implemented on
> both Travan tapes, and cassette tapes.
>
> However, there seems to have been a flaw in the implementation, where the
> breaking point was underestimated.
>

Presumably any patents on this have since long expired (they would
have had to have been filed no earlier than 1983.)

        -hpa

-- 
<hpa@transmeta.com> at work, <hpa@zytor.com> in private!
"Unix gives you enough rope to shoot yourself in the foot."
Architectures needed: ia64 m68k mips64 ppc ppc64 s390 s390x sh v850 x86-64
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/



This archive was generated by hypermail 2b29 : Wed Apr 30 2003 - 22:00:23 EST