Browse Prior Art Database

Copy Correlation

IP.com Disclosure Number: IPCOM000083366D
Original Publication Date: 1975-May-01
Included in the Prior Art Database: 2005-Mar-01
Document File: 2 page(s) / 25K

Publishing Venue

IBM

Related People

Bear, ME: AUTHOR

Abstract

It is sometimes desirable to copy information, in discrete fixed-copy lengths, from random-length originals longer than the fixed length of the copy document.

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Copy Correlation

It is sometimes desirable to copy information, in discrete fixed-copy lengths, from random-length originals longer than the fixed length of the copy document.

This can lead to a problem in insuring that all of the information on the original has been copied onto the copies, particularly where the original document is presented in increments to a copying station, and the location of the starting and stopping points of the motion of the original document is subject to some variation.

The present arrangement utilizes a reference track, movable in synchronism with the original document, and comprising repeated sets of reference marks or indices, which are copied along with the data from the original document. As schematically illustrated in the drawing, a lengthy document 1 carries thereon data 3 comprising, for example, a single column or a plurality of columns of numbers or letters. This data is to be copied onto successive copy documents 5, 7 of fixed length and shorter than the original document 1. In order to be certain that no data from original document 1 escapes being copied, the amount of information on the copies is arranged so that it overlaps from one copy to another, as by moving the original document 1 through the copying station in increments slightly less than the length of the copy documents.

To correlate the values copied on both a first and following copy, a reference track 9 is provided, arranged with a plurality of sets of symbol...