Interactive entertainment system
US11133883B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 6, 2020 |
| Grant date | Sep 28, 2021 |
| Priority date | — |
| Expiry date | Jul 6, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04H60/73
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
In some examples, an audio signal is received and divided into a plurality of frames. Frequency domain data of the audio signal may be generated for an individual frame of the plurality of frames. For example, the frequency domain data may include a plurality of frequency waveform components. Data may be embedded into a selected frequency waveform component having a lower frequency, selected from the frequency domain data of the individual frames, by controlling a phase value of the frequency waveform component to represent a selected bit of the data. For instance, a first range of the phase value may represent a first type of bit and a second range of the phase value may represent a second type of bit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.