Method, system for self-tuning active noise cancellation and headset apparatus
US9824678B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 29, 2016 |
| Grant date | Nov 21, 2017 |
| Priority date | — |
| Expiry date | Nov 29, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10K2210/3028
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
The disclosure is related to a method and a system for self-tuning active noise canceller (STANC) and a headset apparatus. The headset apparatus is placed on a measurement device to emulate user scenario where the user receives audio signal from the headset. The STANC system receives environmental noise signal from a microphone inside the headset. The output of the STANC system acts as reverse noise signal to suppress the environmental noise signal via a speaker unit. The corresponding mixture signal is defined as an error signal. In a calibration mode, the error signal received from the measurement device can be used to update the STANC parameters. The process will be done when the error signal is lower than a predefined threshold. The final parameters can be saved as default settings for the headset apparatus in a user mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.