Portable terminal having earphone winding device built therein

Details Portable terminal having earphone winding device built therein Portable terminal having earphone winding device built therein

2007-12-11

2007-12-11

Tran, Sinh (Department: 2615)

Electrical audio signal processing systems and devices

Electro-acoustic audio transducer

Plural or compound reproducers

C381S380000, C242S385300

Reexamination Certificate

active

10838374

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.

REFERENCES:
patent: 1116402 (1914-11-01), Ferguson
patent: 6082656 (2000-07-01), Thornton
patent: 6199674 (2001-03-01), Liao
patent: 6731956 (2004-05-01), Hanna et al.
patent: 2003/0035562 (2003-02-01), Schmidt et al.
patent: 62191382 (1987-08-01), None

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