Title:
ELECTRO-MECHANICAL ACOUSTIC CONVERTER
Document Type and Number:
Japanese Patent JP2002238093
Kind Code:
A
Abstract:
To provide an electro-mechanical acoustic converter in which the driving circuit is simple, even though it is compact.
Two magnetic circuit which are mutually independent are formed by using a single permanent magnet, a voice coil is arranged in one magnetic circuit, a magnetic weight body is arranged in the other magnetic circuit, a yoke member constituting the magnetic circuits is supported by an elastic member, with respect to a stationary member in vibratable way, and a mechanical switch that is turned on/off according to the vibrations of the yoke member is provided.
Inventors:
MAEKAWA KOJI
Application Number:
JP2001033471A
Publication Date:
August 23, 2002
Filing Date:
February 09, 2001
Export Citation:
Assignee:
PIONEER ELECTRONIC CORP
PIONEER TOHOKU CORP
PIONEER TOHOKU CORP
International Classes:
H04R9/02; B06B1/04; B06B1/14; G10K9/15; H04R1/00; H04R9/04; (IPC1-7): H04R9/02; B06B1/04; B06B1/14; G10K9/15; H04R1/00; H04R9/04
Attorney, Agent or Firm:
Fujihiko Motohiko
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