Title:
ELECTRIC ACOUSTIC CONVERTER
Document Type and Number:
Japanese Patent JP2009010709
Kind Code:
A
Abstract:
To solve problems that a high current flows in a flexible and conductive thin wire used for a moving coil, and then the wire is disconnected or deformed caused by heat generation in a speaker.
An electric acoustic converter, such as a speaker, has a primary coil 7, and a moving ring 2 which is placed in a magnetic space and magnetically connected with the primary coil 7. The electric acoustic converter adds an electric signal to the primary coil 7 to flow a current in the moving ring 2 through magnetic connection, so that the moving ring 2 is vibrated by an interaction between the current and a magnetic field in the magnetic space.
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Inventors:
NAKAYAMA HIROSHI
Application Number:
JP2007170309A
Publication Date:
January 15, 2009
Filing Date:
June 28, 2007
Export Citation:
Assignee:
NAKAYAMA HIROSHI
International Classes:
H04R11/02
Attorney, Agent or Firm:
Yuzo Yamazaki
Naoto Sugiyama
Shirogane Expo
Toshiaki Akamatsu
Okuko Masako
Ichiro Tasaka
Ono Wataru
Shun Hosaka
Naoto Sugiyama
Shirogane Expo
Toshiaki Akamatsu
Okuko Masako
Ichiro Tasaka
Ono Wataru
Shun Hosaka
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