Preserving privacy of a conversation from surrounding environment using a counter signal
US9361903B2 · kind B2 · utility
3Cited by
6References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 22, 2013 |
| Grant date | Jun 7, 2016 |
| Priority date | — |
| Expiry date | Jun 21, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04K2203/34
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Various embodiments provide an ability to analyze an audio input signal and generate a counter audio signal based, at least in part, on the audio input signal. In some cases, combining the audio input signal with the counter audio signal renders the audio input signal incoherent and/or unintelligible to accidental listeners and/or listeners to whom the audio input signal is not directed towards. Alternately or additionally, the counter signal can mask the audio input signal to the accidental listeners.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.