Electrical audio signal processing systems and devices – Having non-electrical feature – And loudspeaker
Reexamination Certificate
2005-07-12
2010-02-23
Lee, Ping (Department: 2614)
Electrical audio signal processing systems and devices
Having non-electrical feature
And loudspeaker
C381S388000, C297S217400, C297S217500
Reexamination Certificate
active
07668329
ABSTRACT:
An acoustic structure of seat back, with an acoustic unit provided in a hole of padding of the seat back. The acoustic unit includes speaker unit(s) and a support box in which the speaker unit(s) is/are supportively received. The support box is accommodated in the afore-said hole of padding, with an opened side thereof facing to a forward side of the padding. A sound-conductive cushion element is supported by that support box so as to lie on a forward side of the speaker unit(s). The support box may include an acoustic hollow portion therein. Those padding and sound-conductive cushion element are covered with a trim cover assembly. A speaker support cushiony element may be provided in the support box to support the speaker unit(s), with a high sound conductivity. The speaker support cushiony element and/or the sound-conductive cushion element may be of network structure.
REFERENCES:
patent: 5101810 (1992-04-01), Skille et al.
patent: 7159938 (2007-01-01), Shiraishi
patent: 2002-346476 (2001-05-01), None
patent: 2004-97654 (2002-09-01), None
Browdy & Neimark PLLC
Lee Ping
Tachi-S Co. Ltd.
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