Characterizing environment using ultrasound pilot tones
US10887710B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 18, 2016 |
| Grant date | Jan 5, 2021 |
| Priority date | — |
| Expiry date | Aug 23, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04S2420/01
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A voice-activated computing device configured to transmit a pilot tone and then capture or receive a signal, which corresponds to the pilot tone, reflected from within the environment containing the voice-activated computing device. The voice-activated computing device, or some other computing system or device, analyzes the received signal in order to determine analyze one or more characteristics present within the signal, i.e. noise, echo, etc. Based upon the analysis, models for signal processing can be determined, selected and/or altered. Future signals received by the voice-activated computing device can be processed with such models. The analysis can also allow for the models to be dynamically updated and for models to be dynamically created.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.