Watermark systems and methods

• US 7,822,969 B2
• Filed: 04/12/2002
• Issued: 10/26/2010
• Est. Priority Date: 04/16/2001
• Status: Active Grant

• Current Assignee: Digimarc Corporation
• Original Assignee: Digimarc Corporation
• Inventors: Anglin, Hugh W.
• Primary Examiner(s): Smith; Carolyn L.
• Application Number:
  US10/122,141
• Publication Number:
  US 20030032033A1
• Time in Patent Office: 3,119 Days
• Field of Search: 713/150, 713/178, 380/1, 380/28, 380/255, 709/217, 709/219, 709/227, 709/230, 709/250, 709/313, 709/328, 709/329
• US Class Current: 713/150
• CPC Class Codes: G06T 1/0021 Image watermarking

Abstract

Various improvements relating to digital watermarking and related technologies are detailed, including methods that enhance security and functionality, and new articles including watermarked puzzles and marked DNA.

Claims

1. A method comprising:

capturing data representing steganographically encoded content using a first device, said first device comprising a cell phone;

in said first device, processing the captured data representing the steganographically-encoded content a first time to yield processed content data;

sending the processed content data to a second processing device at a second, remote location; and

further processing the processed content data on the second processing device, said further processing including decoding plural-bit data steganographically encoded therein.

2. The method of claim 1, in which said content data comprises image data.

3. The method of claim 1 in which said content data comprises audio data.

4. The method of claim 1 in which said content data comprises video data.