Title:
【発明の名称】ラウドスピーカ
Document Type and Number:
Japanese Patent JP2002528019
Kind Code:
A
Abstract:
A mid/high frequency loudspeaker drive unit comprising a stiff lightweight resonant panel form member, a housing in which the panel form member is mounted, a resilient suspension connected between the edges of the panel form member and the housing, the arrangement being such that the housing and the panel form member together define a sealed enclosure, and an electrodynamic exciter for applying bending wave energy to the panel form member to cause it to resonate to produce an acoustic output, the exciter comprising a magnet assembly rigidly fixed to the housing and defining an annular gap and a voice coil disposed in the annular gap and rigidly fixed to the panel form member near to the geometric centre thereof, the location of the voice coil in the annular gap being provided by the said resilient suspension.
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Inventors:
Ajma Henry
Application Number:
JP2000576669A
Publication Date:
August 27, 2002
Filing Date:
October 12, 1999
Export Citation:
Assignee:
New Transducers Limited
International Classes:
H04R1/02; H04R7/04; H04R7/20; H04R9/02; H04R1/28; H04R9/04; (IPC1-7): H04R7/04; H04R1/02; H04R7/20; H04R9/02
Attorney, Agent or Firm:
Minoru Nakamura (9 outside)