Electroacoustic transducer and electronic apparatus

Details Electroacoustic transducer and electronic apparatus Electroacoustic transducer and electronic apparatus

2007-06-12

2007-06-12

Tran, Sinh (Department: 2615)

Electrical audio signal processing systems and devices

Electro-acoustic audio transducer

Electromagnetic

C381S408000

Reexamination Certificate

active

10742944

ABSTRACT:
In an electroacoustic transducer of the present invention, a casing supports a diaphragm, a drive coil is provided on the diaphragm, a first magnetic structure has a first space in a center thereof provided within the casing such that a center axis penetrates the first space, and a second magnetic structure has a second space in a center thereof provided within the casing on a side opposed to the first magnetic structure with respect to the diaphragm, such that the center axis penetrates the second space. The first magnetic structure is oriented such that a magnetization direction thereof is parallel to the center axis. The second magnetic structure is oriented such that a magnetization direction thereof is opposite to the magnetization direction of the first magnetic structure.

REFERENCES:
patent: 3012107 (1961-12-01), Hanlet
patent: 3141071 (1964-07-01), Rich
patent: 4480155 (1984-10-01), Winey
patent: 5764784 (1998-06-01), Sato et al.
patent: 5901235 (1999-05-01), Thigpen et al.
patent: 5905805 (1999-05-01), Hansen
patent: 6154557 (2000-11-01), Montour et al.
patent: 6658133 (2003-12-01), Usuki et al.
patent: 48-24721 (1973-03-01), None
patent: 08-140185 (1996-05-01), None
patent: 2001-231097 (2001-08-01), None
patent: 1984-0003571 (1984-09-01), None

Affiliated with

Also associated with

Rating

Electroacoustic transducer and electronic apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Electroacoustic transducer and electronic apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electroacoustic transducer and electronic apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3833223