Validation of audio-sealing pathway
US11057705B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 23, 2020 |
| Grant date | Jul 6, 2021 |
| Priority date | — |
| Expiry date | Mar 23, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M1/19
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method includes generating, by a noise generator of an apparatus, a noise signal stream. The method includes outputting, via an audio output device of the apparatus, the noise signal stream towards an audio input device of a personal communication device. The noise signal stream travels from the audio output device towards the audio input device via an audio-sealing pathway. The method includes receiving a recorded representation of the noise signal stream from the personal communication device. The recorded representation of the noise signal stream is a function of a transformation of the noise signal stream, by the audio-sealing pathway, and characterizes an audio transfer function of the audio-sealing pathway. The method includes determining, by the controller of the apparatus, whether or not the audio-sealing pathway satisfies an operational criterion based on the recorded representation of the noise signal stream and a reference transfer function associated with the audio-sealing pathway.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.