1994-04-20 - Magnetic Stripes

Header Data

From: Jeremy Cooper <jeremy@crl.com>
To: cypherpunks@toad.com
Message Hash: 30ffcd1d0234df918caad682f6d105c81331d1624ea4a663d4c769ef865a25ea
Message ID: <Pine.3.87.9404192115.A14839-0100000@crl2.crl.com>
Reply To: N/A
UTC Datetime: 1994-04-20 04:47:55 UTC
Raw Date: Tue, 19 Apr 94 21:47:55 PDT

Raw message

From: Jeremy Cooper <jeremy@crl.com>
Date: Tue, 19 Apr 94 21:47:55 PDT
To: cypherpunks@toad.com
Subject: Magnetic Stripes
Message-ID: <Pine.3.87.9404192115.A14839-0100000@crl2.crl.com>
MIME-Version: 1.0
Content-Type: text/plain



It may be difficult to reproduce some magnetic cards because the 
recording pattern is not purely left to right.  Some cards take more of 
an approach like the VHS system, where every frame (or byte) is recorded 
in diagonal stripes across the surface:

         / / / / / / / / 

	instead of

	 - - - - - - - -

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