From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S264614AbTDZGUW (ORCPT ); Sat, 26 Apr 2003 02:20:22 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S264620AbTDZGUW (ORCPT ); Sat, 26 Apr 2003 02:20:22 -0400 Received: from neon-gw-l3.transmeta.com ([63.209.4.196]:35346 "EHLO neon-gw.transmeta.com") by vger.kernel.org with ESMTP id S264614AbTDZGUV (ORCPT ); Sat, 26 Apr 2003 02:20:21 -0400 To: linux-kernel@vger.kernel.org From: "H. Peter Anvin" Subject: Re: 9-track tape drive (Was: Re: versioned filesystems in linux) Date: 25 Apr 2003 23:32:02 -0700 Organization: Transmeta Corporation, Santa Clara CA Message-ID: References: <3EA9A72F.4030505@zytor.com> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7BIT Disclaimer: Not speaking for Transmeta in any way, shape, or form. Copyright: Copyright 2003 H. Peter Anvin - All Rights Reserved Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Followup to: By author: Mike Dresser 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 -- at work, 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