Portable terminal having earphone winding device built therein
US7308109B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 5, 2004 |
| Grant date | Dec 11, 2007 |
| Priority date | — |
| Expiry date | Aug 5, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R1/1016
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An earphone winding device in a portable terminal using an earphone is disclosed. The earphone winding device comprises a housing formed in a portable terminal body. A rotational bobbin is rotatably fit in the housing. It has, at a center thereof, a spiral spring for applying an elastic force to the rotational bobbin and thus rotating the rotational bobbin. A stopper is formed at a predetermined position on the lower surface of the rotational bobbin, for restraining the rotation of the rotational bobbin or releasing the rotational bobbin from the restraint. An earphone cord is wound around the rotational bobbin, connected to the earphone. An earphone hanger is formed at a predetermined position on an outer side surface of the body, for hanging or picking up the earphone thereover or therefrom. A connector unit is formed on the lower surface of the body, for contacting an earphone cord.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.