Cylindrical contact-type microphone
US10158950B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Jul 14, 2016 |
| Grant date | Dec 18, 2018 |
| Priority date | — |
| Expiry date | Jul 14, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2307/023
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A cylindrical contact-type microphone relates to the technical field of audio devices, and solves the technical problem of inconvenient assembly of an existing contact-type microphone. The microphone comprises a shell, and a circuit board (4), a piezoelectric ceramic sheet (2), a lower-stage connection plate (3) and a conductive polar ring (5) which are mounted within the shell, wherein the shell is a two-section cylindrical conductive cylinder body, and a negative signal lower connection sheet of the lower-stage connection plate (3) is electrically connected to a step (13) at a joint portion of an upper cylinder section (11) and a lower cylinder section (12) of the shell.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.