Methods and apparatus for delivering extended payloads with composite watermarks
US11039160B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 21, 2019 |
| Grant date | Jun 15, 2021 |
| Priority date | — |
| Expiry date | Jun 15, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/66
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Methods, apparatus, systems and articles of manufacture are disclosed for delivering extended payloads with composite watermarks. An example watermark encoder includes an first watermark embedder to embed a first watermark into a media stream in accordance with a first watermark technology, the first watermark including a first indicator bit and a first payload and a second watermark embedder to embed a second watermark into the media stream in accordance with a second watermark technology, the second watermark including a second indicator bit and a second payload, the first indicator bit and the second indicator bit to indicate whether the first payload and the second payload are to be combined when the first watermark and the second watermark are decoded.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.