Speaker system

Details Speaker system Speaker system

1991-04-22

1992-09-22

Ng, Jin F.

Electrical audio signal processing systems and devices

Electro-acoustic audio transducer

381188, 381154, 181148, 181156, H04R 2500

Patent

active

051504189

ABSTRACT:
In a speaker system, the rearward area of a diaphragm is separated into two acoustic regions. One of the two acoustic regions is a rear opening type and the other is a base-reflex type. An acoustic mass, such as a port or a passive radiator, is located between the first and second acoustic regions for providing a phase inversion characteristic.

REFERENCES:
patent: 4284166 (1981-08-01), Gale
patent: 4618025 (1986-10-01), Sherman
patent: 4899390 (1990-02-01), Takewa et al.
patent: 4944019 (1990-07-01), Watanabe
patent: 5044066 (1991-04-01), Furukawa

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