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Patent Searching and Data


Title:
SOUND REPRODUCING UNIT
Document Type and Number:
WIPO Patent Application WO/2001/005188
Kind Code:
A1
Abstract:
A sound reproducing unit for reproducing multi-channel audio signals in an interior of automobile, which makes it possible to realize a stereophonic sound field at all seats. Speakers (7) to (10) provided in front/rear seats doors are made in parallel, and adapted to be driven by left/right signals which are main signals to thereby nullify a difference in reproduced sound pressure of the main signals between the front and rear seats, so that a natural stereophonic sound field is realized at all seats.

Inventors:
HASEGAWA AKINORI (JP)
KONNO FUMIYASU (JP)
Application Number:
PCT/JP2000/004461
Publication Date:
January 18, 2001
Filing Date:
July 05, 2000
Export Citation:
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Assignee:
MATSUSHITA ELECTRIC IND CO LTD (JP)
HASEGAWA AKINORI (JP)
KONNO FUMIYASU (JP)
International Classes:
B60R11/02; H04R5/02; H04S5/02; B60R11/00; (IPC1-7): H04R5/02; B60R11/02; H04R1/02; H04S3/00
Foreign References:
JPH02305097A1990-12-18
JPH01122690U1989-08-21
JPH0422295A1992-01-27
JPH0348600A1991-03-01
JPS61182397A1986-08-15
JPH0382240U1991-08-22
JPH0984200A1997-03-28
JPH10210599A1998-08-07
Other References:
See also references of EP 1113703A4
Attorney, Agent or Firm:
Iwahashi, Fumio (Ltd. 1006, Oaza Kadoma Kadoma-shi Osaka, JP)
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