Method, apparatus, and system for voice activity detection based on radio signals
US12272375B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 4, 2022 |
| Grant date | Apr 8, 2025 |
| Priority date | — |
| Expiry date | Oct 4, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L2025/783
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Methods, apparatus and systems for radio-based voice activity detection are described. In one example, a described system comprises: a transmitter configured to transmit a radio signal through a wireless channel of a venue; a receiver configured to receive the radio signal through the wireless channel, wherein the wireless channel is impacted by a voice activity of a target voice source in the venue; and a processor. The processor is configured for: computing a time series of channel information (CI) of the wireless channel based on the radio signal, and detecting the voice activity of the target voice source based on the time series of CI (TSCI) of the wireless channel, without using any media signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.