Earphone antenna of a portable terminal
US8625814B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 3, 2011 |
| Grant date | Jan 7, 2014 |
| Priority date | — |
| Expiry date | Jul 4, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R1/1033
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An earphone antenna of a portable terminal having enhanced reception sensitivity even when a wearing state of the earphone of the mobile terminal is changed is provided. The earphone antenna includes a plurality of voice signal lines, an insulating sheath configured to cover an outer surface of the plurality of the voice signal lines, a receptacle configured to connect to a first end of each of the plurality of the voice signal lines, and a ground and antenna line including a first antenna line configured to wind around an outer surface of the insulating sheath at a first interval in a spiral form, the first antenna line having a first thickness, wherein the ground and antenna line includes a second antenna line configured to wind around an outer surface of the receptacle at a second interval in the spiral form, the second antenna line having a second thickness that is greater than the first thickness and the second interval being different from the first interval.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.