From: "H. Peter Anvin" <hpa@zytor.com>
To: linux-kernel@vger.kernel.org
Subject: Re: 9-track tape drive (Was: Re: versioned filesystems in linux)
Date: 25 Apr 2003 23:32:02 -0700 [thread overview]
Message-ID: <b8d952$162$1@cesium.transmeta.com> (raw)
In-Reply-To: Pine.LNX.4.33.0304251729490.18442-100000@router.windsormachine.com
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
next prev parent reply other threads:[~2003-04-26 6:20 UTC|newest]
Thread overview: 58+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-04-09 5:02 kernel support for non-english user messages Frank Davis
2003-04-09 5:29 ` Oliver Neukum
2003-04-09 5:50 ` Frank Davis
2003-04-09 9:37 ` Bernd Petrovitsch
2003-04-09 11:04 ` Alan Cox
2003-04-09 5:53 ` Andreas Dilger
2003-04-09 8:08 ` Matti Aarnio
2003-04-09 9:33 ` Oliver Neukum
2003-04-09 10:24 ` Matti Aarnio
2003-04-09 22:07 ` Werner Almesberger
2003-04-09 22:41 ` Frank Davis
2003-04-09 22:55 ` Ulrich Drepper
2003-04-09 23:53 ` Johannes Ruscheinski
2003-04-10 1:43 ` Richard B. Johnson
2003-04-10 18:57 ` Alan Cox
2003-04-10 20:13 ` Trond Myklebust
2003-04-10 19:42 ` Alan Cox
2003-04-11 0:48 ` Christer Weinigel
2003-04-11 15:56 ` Daniel Stekloff
2003-04-10 20:53 ` Richard B. Johnson
2003-04-10 23:05 ` Jon Portnoy
2003-04-11 5:39 ` DevilKin
2003-04-11 5:49 ` Arnaldo Carvalho de Melo
2003-04-11 6:17 ` DevilKin
2003-04-11 17:51 ` Randy.Dunlap
2003-04-11 11:57 ` Helge Hafting
2003-04-11 17:55 ` David Lang
2003-04-10 20:36 ` John Bradford
2003-04-10 22:20 ` Shaya Potter
2003-04-11 4:19 ` Valdis.Kletnieks
2003-04-11 4:23 ` Shaya Potter
2003-04-11 8:40 ` Henning P. Schmiedehausen
2003-04-11 9:09 ` John Bradford
2003-04-11 10:59 ` Valdis.Kletnieks
2003-04-11 11:11 ` John Bradford
2003-04-11 11:40 ` Helge Hafting
2003-04-24 23:25 ` versioned filesystems in linux (was Re: kernel support for non-english user messages) Stewart Smith
2003-04-25 7:14 ` John Bradford
2003-04-25 15:20 ` Matthew Sell
2003-04-25 15:45 ` Richard B. Johnson
2003-04-25 16:18 ` versioned filesystems in linux (was Re: kernel support for John Bradford
2003-04-25 17:06 ` Richard B. Johnson
2003-04-25 17:48 ` Valdis.Kletnieks
2003-04-25 19:38 ` H. Peter Anvin
2003-04-25 21:21 ` 9-track tape drive (Was: Re: versioned filesystems in linux) John Bradford
2003-04-25 21:22 ` H. Peter Anvin
2003-04-25 21:31 ` Mike Dresser
2003-04-26 6:32 ` H. Peter Anvin [this message]
2003-04-26 6:57 ` John Bradford
2003-04-25 18:13 ` versioned filesystems in linux (was Re: kernel support for John Bradford
2003-04-25 18:34 ` Richard B. Johnson
2003-04-10 8:19 ` kernel support for non-english user messages Oliver Neukum
2003-04-09 13:11 ` Giuliano Pochini
2003-04-10 3:08 ` Linus Torvalds
2003-04-10 9:05 ` kernel support for non-English " Riley Williams
2003-04-10 17:35 ` Linus Torvalds
2003-04-10 18:32 ` John Bradford
2003-04-12 2:55 ` Chris Wedgwood
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