Method and computer system for encoding of information into a representation

• US 7,213,151 B2
• Filed: 06/27/2002
• Issued: 05/01/2007
• Est. Priority Date: 09/28/2001
• Status: Active Grant

• Current Assignee: Rakuten Group, Inc.
• Original Assignee: International Business Machines Corporation
• Inventors: Kriechbaum, Werner, Guenther, Carsten, Kunzmann, Siegfried, Zeller, Bernhard Hubert
• Primary Examiner(s): Zand; Kambiz
• Assistant Examiner(s): Abrishamkar; Kaveh
• Application Number:
  US10/185,703
• Publication Number:
  US 20030074561A1
• Time in Patent Office: 1,769 Days
• Field of Search: 713/176, 382/276, 382/293
• US Class Current: 713/176
• CPC Class Codes: G06F 21/10 Protecting distributed programs or content, e.g. vending or licensing of copyrighted material protection in video systems or pay television H04N7/16 ; Digital rights management [DRM]
• CPC Class Codes: G06F 21/16 Program or content traceability, e.g. by watermarking
• CPC Class Codes: G06T 1/0035 Output size adaptive watermarking
• CPC Class Codes: G11B 20/00086 Circuits for prevention of unauthorised reproduction or copying, e.g. piracy indicating unauthorised use of record carriers in general G11B23/28; scrambling for television signal recording H04N5/913; network architectures or network protocols for network security H04L63/00; cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
• CPC Class Codes: G11B 20/00884 involving a watermark, i.e. a barely perceptible transformation of the original data which can nevertheless be recognised by an algorithm

Abstract

The present invention relates to a computer system and to a method for encoding of information into a representation comprising a plurality of segments, the order of the segments in the representation being irrelevant for a rendering of the representation, the method comprising the steps of:

• • identification of the segments,
    permutation of the segments to encode the information.

Claims

1. A method for encoding of information into a representation comprising a plurality of segments, the order of the segments in the representation being irrelevant for a rendering of the representation, the method comprising the steps of:

identifying within said representation the segments which can be reordered without changing a later rendering of said representation;

providing unique information for encoding in said representation;

performing permutation of the segments to encode the unique information and reorder the segments per said identifying step;

outputting and saving said representation having said encoded segments; and

rendering said saved encoded segments to produce the same results as said representation having no encoding.

2. The method of claim 1 whereby the unique information comprises data for identification of the representation such as a serial number.

3. The method of claim 1 where the unique information comprises data indicative of an author, company name or origin of the representation.

4. The method of claim 1 where the unique information comprises data indicative of a calendrical date.

5. The method of claim 1 the representation having a format of anyone of the formats contained in the group of:

Musical Instrument Digital Interface (MIDI), Virtual Reality Modeling Language (VRML), a vector graphics format, Post Script, Dynamic Link Library (DLL) format.

6. A computer program product comprising means for carrying out a method in accordance with claim 1 when the computer program is carried out on a computer.

7. A computer system comprising means for performing a method in accordance with claim 1.