MARK-BASED CONTENT MODULATION AND DETECTION

• US 20100166083A1
• Filed: 12/28/2009
• Published: 07/01/2010
• Est. Priority Date: 06/16/2004
• Status: Active Grant

• Current Assignee: Advocado, Inc.
• Original Assignee: Koplar Interactive Systems International, LLC
• Inventors: Chupp, Christopher E., Gramelspacher, Michael S., Lorden, Gary A.
• Granted Patent: US 8,842,725 B2
• Time in Patent Office: Days
• US Class Current: 375/240.260
• CPC Class Codes: H04N 21/4325 by playing back content from the storage medium reproduction of recorded television signals H04N5/76; reproduction of recorded television signals H04N9/79
• CPC Class Codes: H04N 21/4334 Recording operations recording of a television signal H04N5/76; arrangements for recording or accumulating broadcast information or broadcast-related information H04H60/27
• CPC Class Codes: H04N 21/44008 involving operations for analysing video streams, e.g. detecting features or characteristics in the video stream arrangements characterised by components specially adapted for monitoring, identification or recognition of video in broadcast systems H04H60/59
• CPC Class Codes: H04N 21/4627 Rights management associated to the content security in data switching network management H04L41/28; security management or policies for network security H04L63/20; access security in wireless networks H04W12/08
• CPC Class Codes: H04N 21/8355 involving usage data, e.g. number of copies or viewings allowed
• 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 5/76 Television signal recording
• CPC Class Codes: H04N 7/025 Systems for the transmission of digital non-picture data, e.g. of text during the active part of a television frame transmission of digital non-picture data during the vertical blanking interval only H04N7/088
• CPC Class Codes: H04N 7/08 Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band , e.g. by time division H04N7/007 takes precedence
• CPC Class Codes: H04N 7/17318 Direct or substantially direct transmission and handling of requests

Abstract

A method for modulating mark (20) within content signal (18) that has frames, where each of the frames has content lines and one or more measurable parameters, where each of the content lines has pixels, and where each of the pixels has a value, the method comprising selecting framesets from among the frames of the content signal; modulating at least two of the framesets; and causing mark (20) to be present within content signal (18) by at least modulating at least two of the framesets.

Claims

1. A method comprising:

detecting on an encoder a scene change between a first frame and a second frame of a content signal; and

modulating on the encoder a particular frame of the content signal based on detecting the scene change.

2. The method of claim 1, further comprising:

determining that an additional scene change does not occur within a particular number of frames from the scene change,

wherein modulating the particular frame of the content signal is based on a determination that the additional scene changes does not occur within the particular number of frames.

3. The method of claim 1, further comprising:

determining whether a time delay has expired; and

wherein modulating the particular frame of the content signal is based on a determination that the time delay has expired.

4. The method of claim 1, wherein modulating the particular frame comprises:

modulating an active portion of the particular frame of the content signal based on detecting the scene change.

5. The method of claim 4, wherein modulating the active portion comprises:

altering intensity of a plurality of pixels of the active portion of the particular frame based on detecting the scene change.

6. The method of claim 4, wherein modulating the active portion comprises:

altering chrominance of a plurality of pixels of the active portion of the particular frame based on detecting the scene change.

7. The method of claim 4, wherein modulating the active portion comprises:

modulating the active portion of the particular frame of the content signal with data based on detecting the scene change.

8. The method of claim 7, wherein the data is encoded above the noise floor and is a non-steganographic signal.

9. The method of claim 7, wherein the data is a static signal.

10. The method of claim 7, wherein the data indicates that rights are associated with the content signal.

11. The method of claim 1, wherein the particular frame is the second frame.

12. The method of claim 1, wherein the particular frame is the first frame.

13. The method of claim 1, wherein the particular frame is after the first frame and the second frame in the content signal.

14. The method of claim 1, wherein a difference between the total luminance level of the first frame and the second frame is greater than one percent.

15. The method of claim 1, further comprising:

detecting an additional scene change between a third frame and a fourth frame of the content signal; and

modulating an additional frame of the content signal based on detecting the additional scene change,

wherein the modulating of the particular frame and the additional frame cause a rights assertion mark to be present within the content signal.

16. A computer readable storage medium comprising instructions, which when executed by a processor, cause the processor to:

detect a scene change between a first frame and a second frame of a content signal; and

modulate a particular frame of the content signal based on detecting the scene change.

17. A system comprising:

an encoder to detect a scene change between a first frame and a second frame of a content signal and modulate a particular frame of the content signal based on detecting the scene change.