Audio encoding for functional interactivity
US11848030B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 13, 2020 |
| Grant date | Dec 19, 2023 |
| Priority date | — |
| Expiry date | Jul 14, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04H2201/40
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Some examples include a computing device that receives media content to distribute to a plurality of electronic devices. The computing device may receive an indication of first data to relate to the media content for distribution to the plurality of electronic devices. A portion of the multimedia content may be decoded to enable a determination that the media content already has second data embedded in the media content. A psychoacoustic mask may be extracted from the media content and subtracted from the received media content to remove the embedded second data. The first data may be associated with the media content by either embedding third data in the media content, or by embedding the first data in the media content.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.