Earphone connection interface, terminal including the same, and method of operating terminal
US9538276B2 · kind B2 · utility
2Cited by
2References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 26, 2013 |
| Grant date | Jan 3, 2017 |
| Priority date | — |
| Expiry date | Nov 23, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2420/09
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An earphone connection interface, a terminal including the same, and a method of operating the terminal are provided. The earphone connection interface includes: a terminal left terminal, a terminal right terminal, a terminal ground terminal, an earphone detection terminal, and a terminal microphone terminal disposed sequentially along an inner wall of a cylindrical groove and an ear microphone bias voltage source electrically connected to the terminal microphone terminal; and a capacitor electrically connected to the terminal microphone terminal through a switch element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.