Message Encoding

• US 20120076346A1
• Filed: 12/06/2011
• Published: 03/29/2012
• Est. Priority Date: 07/01/2004
• Status: Active Grant

• Current Assignee: Hugh L. Brunk, Trent J. Brundage
• Original Assignee: Hugh L. Brunk, Trent J. Brundage
• Inventors: Brundage, Trent J., Brunk, Hugh L.
• Granted Patent: US 8,600,103 B2
• Time in Patent Office: Days
• US Class Current: 382/100
• CPC Class Codes: G06T 1/0071 using multiple or alternating watermarks
• CPC Class Codes: G10L 19/018 Audio watermarking, i.e. embedding inaudible data in the audio signal
• CPC Class Codes: H04L 9/0816 Key establishment, i.e. cryptographic processes or cryptographic protocols whereby a shared secret becomes available to two or more parties, for subsequent use
• CPC Class Codes: H04L 9/0819 Key transport or distribution, i.e. key establishment techniques where one party creates or otherwise obtains a secret value, and securely transfers it to the other(s) network architectures or network communication protocols for key distribution in a packet data network H04L63/062
• CPC Class Codes: H04N 1/32144 embedded in the image data, i.e. enclosed or integrated in the image, e.g. watermark, super-imposed logo or stamp
• CPC Class Codes: H04N 1/32154 Transform domain methods H04N1/32309 takes precedence
• CPC Class Codes: H04N 1/32272 Encryption or ciphering
• CPC Class Codes: H04N 1/32288 Multiple embedding, e.g. cocktail embedding, or redundant embedding, e.g. repeating the additional information at a plurality of locations in the image
• CPC Class Codes: H04N 21/23892 involving embedding information at multiplex stream level, e.g. embedding a watermark at packet level
• CPC Class Codes: H04N 21/26613 for generating or managing keys in general key distribution for secret or secure communication involving central third party, e.g. key distribution center [KDC] or trusted third party [TTP] H04L9/083; network support of key management H04L63/06; key management for network security in communication control or processing H04W12/04
• CPC Class Codes: H04N 21/8358 involving watermark protecting executable software by watermarking G06F21/16; image watermarking in general G06T1/0021; watermarks inserted in still images for transmission purposes H04N1/32144; inserting watermarks during video coding H04N19/467
• CPC Class Codes: H04N 2201/3233 of authentication information, e.g. digital signature, watermark
• CPC Class Codes: H04N 2201/3269 of machine readable codes or marks, e.g. bar codes or glyphs
• CPC Class Codes: H04N 2201/3281 Encryption; Ciphering
• CPC Class Codes: H04N 2201/3284 for error correction

Abstract

The present invention relates to message encoding. One claim recites a method of providing information to transform a plural-bit message for steganographic encoding, said method comprising: providing a unique plural-bit number; altering the unique plural-bit number; error correction encoding the altered, unique plural-bit number, wherein the error correction encoded, altered, unique plural-bit number comprises information for transforming an independent message. Of course, other claims and combinations are provided too.

Claims

1. A method of providing information to transform a plural-bit message for steganographic encoding, said method comprising:

providing a unique plural-bit number;

altering the unique plural-bit number;

error correction encoding the altered, unique plural-bit number, wherein the error correction encoded, altered, unique plural-bit number comprises information for transforming an independent message.

2. The method of claim 1, wherein the error correcting comprises convolutional encoding.

3. The method of claim 2 wherein the convolutional encoding comprises tail-biting encoding.

4. The method of claim 1 further comprising transforming the message in media.

5. The method of claim 2 further comprising transforming the message in media.

6. The method of claim 3 further comprising transforming the message in media.

7. The method of claim 4 wherein, prior to transformation, the message comprises error correction encoding.

8. The method of claim 5 wherein, prior to transformation, the message comprises error correction encoding.

9. The method of claim 6 wherein, prior to transformation, the message comprises error correction encoding.

10. Logic gates formed in a silicon structure to perform the method recited in claim 3.

11. A programmed computing device comprising non-transitory instructions for causing said device to perform the method of claim 1.

12. An apparatus for providing information to transform a plural-bit message for steganographic encoding, said apparatus comprising:

electronic memory for storing a unique plural-bit number;

an electronic processor programmed for;

altering the unique plural-bit number;

error correction encoding the altered, unique plural-bit number, wherein the error correction encoded, altered, unique plural-bit number comprises information for transforming a message that is independent from the unique plural-bit number.

13. The apparatus of claim 12 in which the error correcting comprises convolutional encoding.

14. The apparatus of claim 13 in which the convolutional encoding comprises tail-biting encoding.

15. The apparatus of claim 14 in which, prior to transformation, the message comprises error correction encoding.