Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Having acoustic wave modifying structure
Patent
1997-06-02
2000-05-16
Kuntz, Curtis A.
Electrical audio signal processing systems and devices
Electro-acoustic audio transducer
Having acoustic wave modifying structure
310324, 381190, 381353, H04R 2500
Patent
active
060647469
ABSTRACT:
A piezoelectric speaker has a substantially reduced size and reproduces sound in the low sound range. The piezoelectric speaker includes a cylindrical main body. First and second sounding members are secured to apertures of both sides of the main body in an air tight arrangement via ringed dampers made of rubber. An external opening is created at the middle of a side surface of the main body. The opening is created so as to have an area which is less than area of a vibrating portion of the sounding members. Sound absorbing members are provided within the main body, on the outside of the first sounding member and on the outside of the second sounding member. Caps having a plurality of holes are secured to the apertures of the both sides of the main body so as to cover the sound absorbers. The main body is supported on concave portions of leg members.
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Heinouchi Yoshiaki
Nakamura Takeshi
Harvey Dionne N.
Kuntz Curtis A.
Murata Manufacturing Co. Ltd.
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