Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Driven diverse static structure
Patent
1998-03-30
2000-08-22
Chan, Wing F.
Electrical audio signal processing systems and devices
Electro-acoustic audio transducer
Driven diverse static structure
381173, 381190, 381353, H04R 2500
Patent
active
061084298
ABSTRACT:
A speaker has a substantially reduced overall size while producing a complete low frequency sound range at high output amplitude. The speaker includes a main body having open sections at both ends thereof. A sounding body pinched by ringed first dampers is secured to each of the open sections of the main body so that the inside of the main body is kept air-tight except for one opening. A first opening is provided at the middle part of the side of the main body. Lid members are secured on the outside of the two sounding bodies via a ringed second damper so as to keep the inside of the lid member air-tight. A second opening is created around the middle of the bottom of each of the lid members.
REFERENCES:
patent: 4951677 (1990-08-01), Crowley et al.
patent: 5059851 (1991-10-01), Corl et al.
patent: 5115814 (1992-05-01), Griffith et al.
patent: 5313949 (1994-05-01), Yock
patent: 5353798 (1994-10-01), Sieben
"Jet Propulsion Laboratory," Dr. Peter Tsou, (NASA Tech Briefs, The Digest of New Technology, May 1995, vol. 19, No. 5).
Heinouchi Yoshiaki
Nakamura Takeshi
Chan Wing F.
Harvey Dionne N.
Murata Manufacturing Co. Ltd.
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