Loudspeaker sound modulation apparatus

Details Loudspeaker sound modulation apparatus Loudspeaker sound modulation apparatus

2005-12-20

2005-12-20

Le, Huyen (Department: 2646)

Electrical audio signal processing systems and devices

Electro-acoustic audio transducer

Detail of mechanical vibration coupling to transducer

C381S165000, C381S386000, C381S189000

Reexamination Certificate

active

06978031

ABSTRACT:
A loudspeaker assembly includes a speaker diaphragm that is displaced to produce sound, and a spinner element mounted to rotate in the path of sound waves produced by the speaker diaphragm, the spinner defining sound wave passing through openings, in said path. Illumination of interior structure, may be provided, for visual effect through openings defined between rotating spinner arms, and between non-rotating grille arms. Different combinations of grilles and spinners are easily enabled by mounting structure.

REFERENCES:
patent: 3902015 (1975-08-01), Edwards et al.
patent: 4817163 (1989-03-01), Stastny

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