Systems and methods to improve timestamp transition resolution

Patent metadata

Field	Value
Publication number	US-12039983-B2
Application number	US-202318158337-A
Country	US
Kind code	B2
Filing date	Jan 23, 2023
Priority date	Oct 18, 2017
Publication date	Jul 16, 2024
Grant date	Jul 16, 2024

Abstract

Example methods and apparatus to improve timestamp transition resolution of watermarks are disclosed. A disclosed example apparatus is to determine an initial resolution for timestamp transitions based on a first number of time units between first ones of watermarks detected in media, and determine an updated resolution for the timestamp transitions based on a predicted timestamp transition window and a second number of time units between second ones of the watermarks detected in the media, the second ones of the watermarks to be subsequent to the first ones of the watermarks in the media, the predicted timestamp transition window associated with the initial resolution for timestamp transitions, the updated resolution for the timestamp transitions corresponding to a third number of time units, the third number of time units less than the second number of time units.

First claim

What is claimed is:

1. An apparatus comprising:
at least one memory;
instructions on the apparatus; and
at least one processor configured to execute the instructions to at least:
determine an initial resolution for timestamp transitions based on a first number of time units between first ones of watermarks detected in media; and
determine an updated resolution for the timestamp transitions based on a predicted timestamp transition window and a second number of time units between second ones of the watermarks detected in the media, the second ones of the watermarks to be subsequent to the first ones of the watermarks in the media, the predicted timestamp transition window associated with the initial resolution for timestamp transitions, the updated resolution for the timestamp transitions corresponding to a third number of time units, the third number of time units less than the second number of time units.

2. The apparatus of claim 1 , wherein at least one of the second number of time units overlaps one of the third number of time units.

3. The apparatus of claim 1 , wherein the at least one processor is configured to determine a fourth number of time units between fourth ones of the watermarks detected forward in the media based on the updated resolution for the timestamp transitions.

4. The apparatus of claim 1 , wherein the at least one processor is configured to determine a fourth number of time units between fourth ones of the watermarks detected backward in the media based on the updated resolution for the timestamp transitions.

5. The apparatus of claim 1 , wherein the third number of time units is about 5 seconds.

6. The apparatus of claim 1 , wherein the at least one processor is configured to determine the updated resolution for the timestamp transitions based on a threshold.

7. The apparatus of claim 6 , wherein the threshold is one time unit.

8. A system comprising:
means for detecting watermarks in media; and
means for determining resolutions for timestamp transitions, the means for determining to:
determine an initial resolution for the timestamp transitions based on a first number of time units between first ones of the watermarks detected in media; and
determine an updated resolution for the timestamp transitions based on a predicted timestamp transition window and a second number of time units between second ones of the watermarks detected in the media, the second ones of the watermarks to be subsequent to the first ones of the watermarks in the media, the predicted timestamp transition window associated with the initial resolution for timestamp transitions, the updated resolution for the timestamp transitions corresponding to a third number of time units, the third number of time units less than the second number of time units.

9. The system of claim 8 , wherein at least one of the second number of time units overlaps one of the third number of time units.

10. The system of claim 8 , wherein the means for determining is to determine a fourth number of time units between fourth ones of the watermarks detected forward in the media based on the updated resolution for the timestamp transitions.

11. The system of claim 8 , wherein the means for determining is to determine a fourth number of time units between fourth ones of the watermarks detected backward in the media based on the updated resolution for the timestamp transitions.

12. The system of claim 8 , wherein the third number of time units is about 5 seconds.

13. The system of claim 8 , wherein the means for determining is to determine the updated resolution for the timestamp transitions based on a threshold.

14. The system of claim 13 , wherein the threshold is one time unit.

15. A non-transitory computer readable medium including instructions which, when executed, cause a machine to at least:
determine an initial resolution for timestamp transitions based on a first number of time units between first ones of watermarks detected in media; and
determine an updated resolution for the timestamp transitions based on a predicted timestamp transition window and a second number of time units between second ones of the watermarks detected in the media, the second ones of the watermarks to be subsequent to the first ones of the watermarks in the media, the predicted timestamp transition window associated with the initial resolution for timestamp transitions, the updated resolution for the timestamp transitions corresponding to a third number of time units, the third number of time units less than the second number of time units.

16. The computer readable medium of claim 15 , wherein at least one of the second number of time units overlaps one of the third number of time units.

17. The computer readable medium of claim 15 , wherein the instructions are to cause the machine to determine a fourth number of time units between fourth ones of the watermarks detected forward in the media based on the updated resolution for the timestamp transitions.

18. The computer readable medium of claim 15 , wherein the instructions are to cause the machine to determine a fourth number of time units between fourth ones of the watermarks detected backward in the media based on the updated resolution for the timestamp transitions.

19. The computer readable medium of claim 15 , wherein the third number of time units is about 5 seconds.

20. The computer readable medium of claim 15 , wherein the instructions cause the machine to determine the updated resolution for the timestamp transitions based on a threshold.

Assignees

• Nielsen Co Us Llc

Inventors

• Frett Ken Joseph
• Kuznetsov Vladimir
• Gish David
• Gupta Sadhana

Classifications

• H04N19/467

  characterised by the embedded information being invisible, e.g. watermarking · CPC title

• H04N21/4302

  Content synchronisation processes, e.g. decoder synchronisation · CPC title

• H04N21/8358 Primary

  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 title

• H04N21/8547

  involving timestamps for synchronizing content · CPC title

• G10L25/45

  characterised by the type of analysis window · CPC title