Earphone and set of earphones
US10972844B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 27, 2020 |
| Grant date | Apr 6, 2021 |
| Priority date | — |
| Expiry date | Mar 27, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2460/13
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The invention provides an earphone and a set of earphones. The earphone includes a processing circuit and a filtering module. The processing circuit acquires a first speech signal and performs a pre-processing operation on the first speech signal to generate a second speech signal. The filtering module includes high-pass, low-pass, and band-pass filters. The processing circuit is further configured to: receive first, second, and third signals respectively from the high-pass, low-pass, and band-pass filters; perform a noise reduction operation on the second and third signals to generate a fourth signal; and perform a signal synthesis operation on the first and fourth signals to synthesize the first and fourth signals to form an output speech signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.