Headphone

Details Headphone Headphone

2007-02-27

2007-02-27

Tran, Sinh (Department: 2615)

Electrical audio signal processing systems and devices

Electro-acoustic audio transducer

Plural or compound reproducers

C381S381000

Reexamination Certificate

active

10528696

ABSTRACT:
In order to provide headphones with a cord-winding mechanism capable of favorably retracting and winding a cord, a cord-winding mechanism is incorporated in either or both of the casings of housings 1L and 1R constituting headphones; and a lock is released by joining the left and right casings together, so that the cord is retracted and wound.

REFERENCES:
patent: 6480611 (2002-11-01), Hashimoto et al.
patent: 6937725 (2005-08-01), Liao
patent: 2003/0169896 (2003-09-01), Kirk et al.
patent: 143778/1982 (1982-09-01), None
patent: 2000-253477 (2000-09-01), None
patent: 2002-10385 (2002-01-01), None

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