Browse Prior Art Database

Reduction in FAX Transmission Costs

IP.com Disclosure Number: IPCOM000105299D
Original Publication Date: 1993-Jul-01
Included in the Prior Art Database: 2005-Mar-19
Document File: 2 page(s) / 80K

Publishing Venue

IBM

Related People

Manthuruthil, GC: AUTHOR [+3]

Abstract

This article proposes deploying a combination of techniques for reducing cost of FAX transmission. The basic approach is to achieve cost reduction by not transmitting blank spaces which may be distributed all over the surface of the paper to be faxed.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 53% of the total text.

Reduction in FAX Transmission Costs

      This article proposes  deploying a combination of techniques
for reducing cost of FAX transmission.  The basic approach is to
achieve cost reduction by not transmitting blank spaces which may be
distributed all over the surface of the paper to be faxed.

      Most modern FAX machines scan the paper while the transmission
is in progress.  Some approaches have been proposed where the whole
document is first scanned, then  the number of the recipient is
dialled, followed by the actual transmission.  A potential advantage
of this approach is, the transmitting FAX machine does not have to
transmit the blank pages.  However, typically a significant amount of
blank spaces are embedded within a page.  If an approach is devised
which somehow reduces the overall transmission time consumed in
transmission of the blank spaces, significant cost savings are
possible.

      This  article proposes a combination of techniques to reduce
the costs.  Each of these techniques may be employed singly or in
combination.

Phase I: The entire document, which may consist of several pages, is
scanned first.  The scanned image is then stored in the memory of the
FAX machine.  The processor and special purpose software embedded in
the FAX machine then parse the stored image.  It looks for the
following:

1.  Some uniformity in format.  For example, this could be as simple
    as the recognition of the fact that the document (or part
    thereof) is a double spaced document or contains long patches of
    blank spaces.
2.  Identification and layout of the 'objects' on the surface of the
    paper.  For example, these objects could be picture, figure,
    piece of text etc.  The layout essentially implies following set
    of information: the position of the upper left corner and size of
    the object.

Phase II: After parsing and analyzing formats of all the pages of a
document, the software could look for common formats.  It is fairly
routine for a large number of pages belonging to the same document to
have same format.

Phase III: In this phase, the sender FAX machine could send to the
recipient FAX machine, instructions about the formats which are used.

1.  If the...