Systems and methods to improve timestamp transition resolution
US11087772B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 30, 2020 |
| Grant date | Aug 10, 2021 |
| Priority date | — |
| Expiry date | Jul 30, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/467
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Systems, methods, apparatus, and articles of manufacture to improve timestamp transition resolution of watermarks are disclosed. An example system includes a processor to: identify a first transition window between a first watermark detected in media and a second watermark detected in the media; calculate a first number of time units between the first watermark and the second watermark; when the first number of time units is greater than a threshold, set the first transition window as a first reference transition window, and map the first reference transition window forward by a second number of time units; identify a second transition window between the second watermark and a third watermark detected in the media; calculate a third number of time units between the second watermark and the third watermark; when the third number of time units is greater than the threshold, calculate a fourth number of time units included in an overlap between the first reference transition window and the second transition window, and when the fourth number of time units is less than or equal to the threshold, set the overlap between the first reference transition window and the second transition win…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.