Speaker device

Details Speaker device Speaker device

2006-06-13

2006-06-13

Tran, Sinh (Department: 2646)

Electrical audio signal processing systems and devices

Electro-acoustic audio transducer

Plural or compound reproducers

C381S389000

Reexamination Certificate

active

07062054

ABSTRACT:
A speaker device has a pair of speaker units each including a magnetic circuit. The magnetic circuits are opposed and connected to each other by a binding member. Vibrations generated by the speaker units are canceled to each other so that the occurrence of unnecessary vibrations can be suppressed and the transient characteristic can be improved. Acoustic load members are arranged in the front portions of frames so that the resonance frequency can be lowered and a band of reproducing sound of low frequency can be expanded.

REFERENCES:
patent: 3993345 (1976-11-01), Croup
patent: 4783820 (1988-11-01), Lyngdorf et al.
patent: 4805221 (1989-02-01), Quaas
patent: 5323466 (1994-06-01), Geddes
patent: 5862242 (1999-01-01), Takewa et al.
patent: 6389146 (2002-05-01), Croft, III
patent: 6678384 (2004-01-01), Kowaki et al.
patent: 1 162 864 (2001-12-01), None
patent: 05-328473 (1993-12-01), None
patent: 05328473 (1993-12-01), None
patent: U 6-66194 (1994-09-01), None
patent: U 3008172 (1994-12-01), None
patent: A 8-317489 (1996-11-01), None
patent: A 11-41686 (1999-02-01), None
patent: A 2001-78285 (2001-03-01), None

Affiliated with

Also associated with

Rating

Speaker device does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3697938