System and method for source authentication in voice-controlled automation
US11437019B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 26, 2020 |
| Grant date | Sep 6, 2022 |
| Priority date | — |
| Expiry date | Feb 27, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L17/06
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A system authenticates sound verbalized or otherwise generated by a live source within a monitored setting for voice-controlled or sound-controlled automation of a responsive process. One or more classifiers each generate a decision value according to values of predetermined signal features extracted from a captured digital stream, and a sound type classification is computed according to an aggregate score of a predetermined number of decision values. The actuation of the responsive process is authenticated when the system discriminately indicates the captured sound signals to be verbalized or generated by a live source. The responsive process is thereby suppressed when the sound is instead determined to be reproduced or otherwise previously transduced, for example by a transmission or recording.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.