Digital watermarking

Abstract

In one example, a method for inserting a digital watermark in a signal includes obtaining the signal comprising a plurality of frames, inserting a first digital watermark in a first frame of the plurality of frames, inserting a second digital watermark in a second frame of the plurality of frames, wherein the second digital watermark differs from the first digital watermark in at least one way selected from a group of: a location within a respective frame, a number of bits, a pattern of bits, and a number of bits of a noise, and outputting a watermarked signal including the first digital watermark in the first frame and the second digital watermark in the second frame.

What is claimed is: 
     
         1 . A method comprising:
 obtaining, by a processing system including at least one processor, a signal containing a media;   inserting, by the processing system, a first digital watermark in a first frame of the media;   inserting, by the processing system, a second digital watermark in a second frame of the media, wherein the second digital watermark differs from the first digital watermark in at least one way comprising at least one of: a number of bits, a pattern of bits, or a number of bits of a noise; and   outputting, by the processing system, a watermarked signal containing the media including the first digital watermark in the first frame and the second digital watermark in the second frame.   
     
     
         2 . The method of  claim 1 , wherein the media comprises a video media comprising a plurality of video frames including the first frame and the second frame. 
     
     
         3 . The method of  claim 1 , wherein the media comprises an audio media comprising a plurality of audio frames including the first frame and the second frame. 
     
     
         4 . The method of  claim 1 , wherein the media comprises an image media comprising a plurality of image frames including the first frame and the second frame. 
     
     
         5 . The method of  claim 1 , wherein the first frame and the second frame comprise consecutive frames of a plurality of frames of the media. 
     
     
         6 . The method of  claim 1 , wherein the first frame and the second frame comprise nonconsecutive frames of a plurality of frames of the media. 
     
     
         7 . The method of  claim 1 , wherein the pattern of bits in the first digital watermark takes on a first shape, and the pattern of bits in the second digital watermark takes on a second shape that is different from the first shape. 
     
     
         8 . The method of  claim 1 , wherein the pattern of bits in the first digital watermark takes on a first color, and the pattern of bits in the second digital watermark takes on a second color that is different from the first color. 
     
     
         9 . The method of  claim 1 , further comprising, prior to the outputting:
 encrypting, by the processing system, at least one of: the first digital watermark or the second digital watermark.   
     
     
         10 . The method of  claim 9 , wherein the encrypting utilizes at least one of: a static encryption key and algorithm, a complex blockchain algorithm, or a one-time pad. 
     
     
         11 . The method of  claim 1 , wherein a third frame of the media is free of watermarks. 
     
     
         12 . The method of  claim 1 , wherein the pattern of bits is broken into a plurality of pieces, wherein a first piece of the plurality of pieces is inserted into the first frame as the first digital watermark and a second piece of the plurality of pieces is inserted into the second frame as the second digital watermark. 
     
     
         13 . The method of  claim 1 , wherein the first digital watermark comprised an entirety of the first frame. 
     
     
         14 . The method of  claim 1 , wherein the first digital watermark is inserted into visual data of the first frame and the second digital watermark is inserted into visual data of the second frame. 
     
     
         15 . The method of  claim 1 , wherein the first digital watermark is inserted into audio data of the first frame and the second digital watermark is inserted into audio data of the second frame. 
     
     
         16 . The method of  claim 1 , wherein the first frame and the second frame are randomly selected from among a plurality of frames of the media for insertion of the first digital watermark and the second digital watermark, respectively. 
     
     
         17 . The method of  claim 1 , wherein the first digital watermark and the second digital watermark each comprise one piece of a larger digital watermark that has been broken into a plurality of pieces, wherein the plurality of pieces is distributed over a plurality of frames of the media including the first frame and the second frame. 
     
     
         18 . A non-transitory computer-readable medium storing instructions which, when executed by a processing system including at least one processor, cause the processing system to perform operations, the operations comprising:
 obtaining a signal containing a media;   inserting a first digital watermark in a first frame of the media;   inserting a second digital watermark in a second frame of the media, wherein the second digital watermark differs from the first digital watermark in at least one way comprising at least one of: a number of bits, a pattern of bits, or a number of bits of a noise; and   outputting a watermarked signal containing the media including the first digital watermark in the first frame and the second digital watermark in the second frame.   
     
     
         19 . The non-transitory computer-readable medium of  claim 18 , wherein the first frame and the second frame are randomly selected from among a plurality of frames of the media for insertion of the first digital watermark and the second digital watermark, respectively. 
     
     
         20 . A device comprising:
 a processing system including at least one processor; and   a non-transitory computer-readable medium storing instructions which, when executed by the processing system, cause the processing system to perform operations, the operations comprising:
 obtaining a signal containing a media; 
 inserting a first digital watermark in a first frame of the media; 
 inserting a second digital watermark in a second frame of the media, wherein the second digital watermark differs from the first digital watermark in at least one way comprising at least one of: a number of bits, a pattern of bits, or a number of bits of a noise; and 
 outputting a watermarked signal containing the media including the first digital watermark in the first frame and the second digital watermark in the second frame.