Noise cancelling earphone integrated with filter module
US10715905B2 · kind B2 · utility
12Cited by
1References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 12, 2019 |
| Grant date | Jul 14, 2020 |
| Priority date | — |
| Expiry date | Aug 12, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2460/01
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A noise cancelling earphone includes an earphone housing, a filter module, and a speaker. The filter module and the speaker are installed in the earphone housing. The filter module includes a printed circuit board, a microphone, and a filter unit. The microphone and the filter unit are respectively disposed on the printed circuit board. The filter unit is electrically connected between the microphone and the speaker. The filter module is arranged in the earphone. The structural design is reasonable, the space is effectively utilized, the structure is compact, and the assembly is convenient.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.