Dual-tweeter loudspeaker

Electrical audio signal processing systems and devices – Binaural and stereophonic

Reexamination Certificate

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Details

C381S300000, C381S386000

Reexamination Certificate

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10319388

ABSTRACT:
A dual tweeter speaker, wherein the tweeters are spaced far apart, is provided. The loudspeaker system includes a woofer and two tweeters, which are arranged so they reduce interference with sound waves emitted by the woofer. The spaced apart tweeters provide an improved stereo imaging range. The tweeters can also use a low cross-over frequency, so that they can provide both midrange and high frequencies.

REFERENCES:
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patent: 4249037 (1981-02-01), Dexter
patent: 4554414 (1985-11-01), House
patent: 4811406 (1989-03-01), Kawachi
patent: 5119429 (1992-06-01), Chatelain
patent: 5123500 (1992-06-01), Malhoit et al.
patent: 5181253 (1993-01-01), Jordan
patent: 5307418 (1994-04-01), Sumitani
patent: 5657392 (1997-08-01), Bouchard
patent: 6026927 (2000-02-01), Burdett et al.
patent: 6031920 (2000-02-01), Wiener
patent: 6279678 (2001-08-01), Tracy
http://www.radioshack.com/product.asp?catalog%5Fname=CTLG&category%5Fname=CTLG%5F002%5F001%5F022%F000&product%Fid=40%2D4092, Dual-Tweeter, 6-1/2″Ceiling Mount Stereo Speaker, Radio Shack Brand, Model 40-4092.

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