Baffle vibration reducing

Details Baffle vibration reducing Baffle vibration reducing

2011-07-19

2011-07-19

Ensey, Brian (Department: 2614)

Electrical audio signal processing systems and devices

Having non-electrical feature

And loudspeaker

C181S163000

Reexamination Certificate

active

07983436

ABSTRACT:
An apparatus for reducing baffle vibration includes a baffle that is subject to vibration. A first transducer that is seated in the baffle includes a first diaphragm that is acoustically coupled to a listening area in a vehicle and also acoustically coupled to a cavity in the vehicle. A first input signal applied to the first transducer causes the first diaphragm to move in a first direction, thereby generating an acoustic output. A second transducer is mechanically coupled to the first transducer. The second transducer includes a second diaphragm that is acoustically coupled to the first diaphragm and also acoustically coupled to the listening area. A second input signal applied to the second transducer causes the second diaphragm to move in a second direction that is substantially opposite to the first direction to reduce a vibration imparted to the baffle while substantially maintaining the acoustic output.

REFERENCES:
patent: 2358823 (1944-09-01), O'Connor et al.
patent: 2768702 (1956-10-01), Lowry
patent: 2993091 (1961-07-01), Guss
patent: 3202773 (1965-08-01), Tichy
patent: 3649776 (1972-03-01), Burton
patent: 3688864 (1972-09-01), Guss
patent: 3815707 (1974-06-01), Burhoe
patent: 4008374 (1977-02-01), Tiefenbrun
patent: 4039044 (1977-08-01), Heil
patent: 4182931 (1980-01-01), Kenner
patent: 4213008 (1980-07-01), Helffrich
patent: 4325454 (1982-04-01), Humphrey
patent: 4504704 (1985-03-01), Ohyaba et al.
patent: 4590333 (1986-05-01), Strohbeen
patent: 4733749 (1988-03-01), Newman et al.
patent: 4783820 (1988-11-01), Lyngdorf et al.
patent: 4875546 (1989-10-01), Krnan
patent: 4882760 (1989-11-01), Yee
patent: 4903300 (1990-02-01), Polk
patent: 5023914 (1991-06-01), Arnold
patent: 5092424 (1992-03-01), Schreiber et al.
patent: 5119431 (1992-06-01), Hamby
patent: 5212732 (1993-05-01), Hipps et al.
patent: 5253301 (1993-10-01), Sakamoto et al.
patent: 5388162 (1995-02-01), Sohn
patent: 5532437 (1996-07-01), Simplicean et al.
patent: 5537479 (1996-07-01), Kreisel et al.
patent: 5594804 (1997-01-01), Kim
patent: 5621804 (1997-04-01), Beppu
patent: 5664020 (1997-09-01), Goldfarb et al.
patent: 5703337 (1997-12-01), Geisenberger
patent: 5850460 (1998-12-01), Tanaka et al.
patent: 6031919 (2000-02-01), Funahashi et al.
patent: 6031925 (2000-02-01), Shteyn
patent: 6195442 (2001-02-01), Griffin et al.
patent: 6353670 (2002-03-01), Gasner
patent: 6493452 (2002-12-01), Koizumi et al.
patent: 6628792 (2003-09-01), Paddock
patent: 6678384 (2004-01-01), Kowaki et al.
patent: 6878384 (2005-04-01), Cruise et al.
patent: 6985593 (2006-01-01), Nichols et al.
patent: 2002/0150275 (2002-10-01), Guenther
patent: 2004/0008858 (2004-01-01), Steere et al.
patent: 2004/0008859 (2004-01-01), Zhao
patent: 2004/0017920 (2004-01-01), Nishikawa et al.
patent: 2004/0105565 (2004-06-01), Butters et al.
patent: 2004/0208338 (2004-10-01), Pan et al.
patent: 2005/0129258 (2005-06-01), Fincham
patent: 19637847 (1998-03-01), None
patent: 0410352 (1991-01-01), None
patent: 0771133 (1997-05-01), None
patent: 1257147 (2002-11-01), None
patent: 1427247 (2004-06-01), None
patent: 2258365 (1993-02-01), None
patent: 2387987 (2003-10-01), None
patent: 54023519 (1979-02-01), None
patent: 07170597 (1995-07-01), None
patent: 8019089 (1996-01-01), None
patent: 10178693 (1998-06-01), None
patent: 11027784 (1999-01-01), None
patent: 11178085 (1999-07-01), None
patent: 9967975 (1999-12-01), None
patent: 02052892 (2002-07-01), None
Chinese Office Action for Application No. 200510003434.9 dated Nov. 11, 2010, 11 pages.
Office Action dated Jun. 6, 2008 from China Application No. 03147033.5.
The European Search Report, dated Apr. 18, 2008, in corresponding EP Application Application No. 05111421.3.
Linwitz Lab, Dipole Woofer, Nov. 15, 2002, pp. 1-6, http://www.linkwitzlab.com/woofer.htm.
D.B. Keele, Jr, Kef Reference Series Model Four Speakers, Audio/Jun. 1996, pp. 50-55.
http:/lwww.linkwitzlab.com/woofer.htm, (Aug. 11, 2003).
Office Action dated Jun. 12, 2009, for China Application No. 03147033.5, filed Aug. 23, 2003.
Examination Report for application No. 03102533.1, dated Oct. 30, 2009.

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