Drive unit for electro-acoustic converter with dual magnetic...

Details Drive unit for electro-acoustic converter with dual magnetic... Drive unit for electro-acoustic converter with dual magnetic...

2008-05-27

2008-05-27

Ni, Suhan (Department: 2614)

Electrical audio signal processing systems and devices

Electro-acoustic audio transducer

Plural or compound reproducers

C381S421000

Reexamination Certificate

active

11140990

ABSTRACT:
An electro-acoustic drive unit including at least a first and a second drive unit, each provided with a pole gap for exciting respective voice coil assemblies, at least one permanent magnet means is arranged to be a part of the magnetic circuit of both the first and the second drive unit. The pole gaps are arranged to provide magnetic fields directed radially with respect to a center axis of the loudspeaker, and the permanent magnet means has radially extending magnetization direction with respect to the center axis of the loudspeaker.

REFERENCES:
patent: 2699472 (1955-01-01), Olson et al.
patent: 3665124 (1972-05-01), Sotome
patent: 5214710 (1993-05-01), Ziegenberg et al.
patent: 5786741 (1998-07-01), Leibzon
patent: 6269168 (2001-07-01), Tagami

Affiliated with

Also associated with

Rating

Drive unit for electro-acoustic converter with dual magnetic... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Drive unit for electro-acoustic converter with dual magnetic..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Drive unit for electro-acoustic converter with dual magnetic... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3926589