Compact high performance speaker

Details Compact high performance speaker Compact high performance speaker

2006-02-28

2006-02-28

Ni, Suhan (Department: 2643)

Electrical audio signal processing systems and devices

Electro-acoustic audio transducer

Electromagnetic

C381S421000, C381S412000

Reexamination Certificate

active

07006653

ABSTRACT:
A speaker has an annular magnet structure. First and second annular magnets are arranged concentrically with each other and connected by a shunt at one end and a pole-defining structure at the other end to concentrate magnetic flux in a cylindrical voice coil gap. The shunt and pole structure are stacked such that the combined magnetic assembly has an opening extending centrally therethrough. A voice coil rides in the cylindrical magnetic flux gap and its leads are brought out through the opening to the other side of the magnet. When used with an enclosure, the diaphragm of the speaker may communicate through the central opening with the volume of a tuned enclosure extending behind the speaker, or the opening may serve as a port of the enclosure, allowing further degrees of control over total acoustics.

REFERENCES:
patent: 2769942 (1956-11-01), Hassan
patent: 3067366 (1962-12-01), Hofman
patent: 3340604 (1967-09-01), Parain
patent: 3838216 (1974-09-01), Watkins
patent: 3910374 (1975-10-01), Holehouse
patent: 3948346 (1976-04-01), Schindler
patent: 3979566 (1976-09-01), Willy
patent: 4122315 (1978-10-01), Schroeder et al.
patent: 4151379 (1979-04-01), Ashworth
patent: 4201886 (1980-05-01), Nagel
patent: 4220832 (1980-09-01), Nagel
patent: 4300022 (1981-11-01), Hasting-James et al.
patent: 4401857 (1983-08-01), Morikawa
patent: 4440259 (1984-04-01), Strohbeen
patent: 4472604 (1984-09-01), Nakamura et al.
patent: 4477699 (1984-10-01), Wada et al.
patent: 4492826 (1985-01-01), Chiu
patent: 4552242 (1985-11-01), Kashiwabara
patent: 4565905 (1986-01-01), Nation
patent: 4577069 (1986-03-01), Keezer
patent: 4783824 (1988-11-01), Kobayashi
patent: 4799264 (1989-01-01), Plummer
patent: 4821331 (1989-04-01), Murayama et al.
patent: 4965837 (1990-10-01), Murayama et al.
patent: 5040221 (1991-08-01), Edwards et al.
patent: 5115884 (1992-05-01), Falco
patent: 5155578 (1992-10-01), Lim et al.
patent: 5333204 (1994-07-01), Hamada et al.
patent: 5390257 (1995-02-01), Oslac et al.
patent: 5402503 (1995-03-01), Prokisch
patent: 5446797 (1995-08-01), Paddock
patent: 5519178 (1996-05-01), Ritto et al.
patent: 5524151 (1996-06-01), Bleim
patent: 5548657 (1996-08-01), Fincham
patent: 5583945 (1996-12-01), Iijima et al.
patent: 5587615 (1996-12-01), Murray et al.
patent: 5594805 (1997-01-01), Sakamoto et al.
patent: 5604815 (1997-02-01), Paddock
patent: 5657392 (1997-08-01), Bouchard
patent: 5715324 (1998-02-01), Tanabe et al.
patent: 5744761 (1998-04-01), Ogura et al.
patent: 5748760 (1998-05-01), Button
patent: 5751828 (1998-05-01), Ueda et al.
patent: 5802189 (1998-09-01), Blodget
patent: 5802191 (1998-09-01), Guenther
patent: 5835612 (1998-11-01), Fujihira et al.
patent: 5847333 (1998-12-01), D'Hoogh
patent: 5867583 (1999-02-01), Hazelwood et al.
patent: 5917922 (1999-06-01), Kukurudza
patent: 6067364 (2000-05-01), Brinkley et al.
patent: 6611606 (2003-08-01), Guenther

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