Directional noise cancelling headset with multiple feedforward microphones
US10755690B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 11, 2018 |
| Grant date | Aug 25, 2020 |
| Priority date | — |
| Expiry date | Jul 7, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R3/005
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A headphone device includes a speaker housing, a first feedforward microphone, and a second feedforward microphone. The first feedforward microphone is coupled to the speaker housing at a first location, and the second feedforward microphone is coupled to the speaker housing at a second location. The headphone device also includes an active noise cancelling (ANC) circuit configured to generate an anti-noise signal based on at least one of a first signal from the first feedforward microphone and a second signal from the second feedforward microphone. The headphone device also includes a speaker configured to generate an audio output at least partially based on the anti-noise signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.