Mobile platform based active noise cancellation (ANC)
US10878796B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 24, 2019 |
| Grant date | Dec 29, 2020 |
| Priority date | — |
| Expiry date | Jul 24, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10K2210/3044
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A system and method for remote active noise correction at a remote device includes receiving, at the remote device, an ambient noise signal from a microphone. The remote device is disposed along a processing and transmission path between the microphone and a headphone. The processing and transmission path exhibit non-zero latency. The remote device further analyzes the ambient noise signal to generate an anti-noise signal, performs a first correction of the anti-noise signal for a headphone interface effect, performs a second correction of the anti-noise signal for the non-zero latency of the processing and transmission path between the microphone and the headphone. The remote device then transmits the corrected anti-noise signal to the headphone.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.