Speakerphone system that corrects for mechanical vibrations on an enclosure of the speakerphone using an output of a mechanical vibration sensor and an output of a microphone generated by acoustic signals and mechanical vibrations
US11158300B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 16, 2019 |
| Grant date | Oct 26, 2021 |
| Priority date | — |
| Expiry date | Sep 16, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L12/46
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
Described herein is a speakerphone system (system) comprising: at least one loudspeaker, the loudspeaker adapted to generate mechanical vibrations on an enclosure of the system; at least one microphone (mic) adapted to convert an input sound acoustic signal into an input sound electrical signal and adapted to convert the mechanical vibrations into a mechanical vibrations electrical signal, and to output both of the input sound electrical signal and the mechanical vibrations electrical signal as a mic output signal; at least one mechanical vibration sensor (MVS) adapted to convert the mechanical vibrations to a mechanical vibration error signal to output the mechanical vibration error signal as an MVS output signal; and circuitry adapted to subtract the MVS output signal from the mic output signal and output the resultant signal as a speakerphone output signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.