Device for generating sound messages and associated verification method
US11729567B2 · kind B2 · utility
0Cited by
1References
12Claims
0Family size
Assignee
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Key dates
| Filing date | Jan 7, 2022 |
| Grant date | Aug 15, 2023 |
| Priority date | — |
| Expiry date | Feb 19, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04S1/007
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present invention relates to a device for generating sound messages, comprising: The first sound signal corresponds to the sum of the test audio signal and the useful audio signal, and the second sound signal corresponds to the sum of the test audio signal and an opposite signal corresponding to the opposite of the useful audio signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.