Browse Prior Art Database

Multimedia Mixed Object Envelopes Supporting a Graduated Fee Scheme via Encryption

IP.com Disclosure Number: IPCOM000111693D
Original Publication Date: 1994-Mar-01
Included in the Prior Art Database: 2005-Mar-26
Document File: 6 page(s) / 241K

Publishing Venue

IBM

Related People

Johnson, DB: AUTHOR [+7]

Abstract

Multimedia uses the synergistic combination of different technologies, such as video, music and speech synthesis, still pictures and diagrams, on-screen interactive text, speech recognition, facsimile transmittal, computer programs, etc., and animation objects that combine the other objects into an integrated presentation. As such, there are a variety of data types that may be used in multimedia applications.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 26% of the total text.

Multimedia Mixed Object Envelopes Supporting a Graduated Fee Scheme
via Encryption

      Multimedia uses the synergistic combination of different
technologies, such as video, music and speech synthesis, still
pictures and diagrams, on-screen interactive text, speech
recognition, facsimile transmittal, computer programs, etc., and
animation objects that combine the other objects into an integrated
presentation.  As such, there are a variety of data types that may be
used in multimedia applications.

      Cryptography has historically concerned itself with maintaining
the privacy of data (via encryption of the data) and has recently
been used to also maintain the integrity of data (via a cryptographic
checksum or MAC (Message Authentication Code)) and to provide source
authentication (e.g., by the non-repudiation property of some public
key algorithms).  It is obvious that cryptography can be used in a
straightforward manner to provide these services for multimedia data.
However, there are additional services that may be provided by
cryptographic means that add value to multimedia applications.

      The mixed object envelope, as defined in the prior art, can be
regarded as a "presentation script" regarding the way to combine
various multimedia objects.  For example, as explained in the prior
art, the graphic of a picture of an elephant herd can be displayed
while the sound of an elephant's trumpet is played and the
corresponding displayed text is "Hear the sound of an elephant".

      This invention is an enhancement to the definition of a mixed
object envelope to include an indication of whether the referenced
object (video, graphics, sound, program, etc.) has been encrypted or
not.  If the object has been encrypted, then an access control
password will need to have been supplied to the multimedia
Presentation Manager* for the referenced object to be able to be
presented.  This access control password can be supplied to the user
for a fee via a method that is different from the distribution of the
multimedia presentation.  For example, the presentation could be sent
over a telecommunications network and the password distributed
audibly by the telephone.

      This invention allows a graduated fee schedule based on usage
of the multimedia presentation.  It allows a basic or sample portion
of the multimedia presentation to be presented free (or a very
nominal charge) to act as a sample to allow potential users to use a
portion of the multimedia presentation and see if they like it with
the intention that the sample will act as an inducement for some
users to make them want to pay for the complete presentation.

      Also, for some presentations that deal in multiple segments,
this invention allows the user to pay for only the segments desired.
For useability, this can still be accomplished by the specification
of a single access control password.  The access control password is
transformed into a cryptograp...