Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
BONE CONDUCTION OSCILLATOR, AND BONE CONDUCTION SPEAKER HEAT SET USING THE SAME
Document Type and Number:
Japanese Patent JP3358086
Kind Code:
B2
Abstract:

PROBLEM TO BE SOLVED: To provide a bone conduction oscillator with which the size of the oscillator composing a bone conduction speaker can be minimized and optimized, an output level can be enhanced, and a frequency band can be broadened, and to provide a bone conduction speaker head set using the same.
SOLUTION: The speaker head set is provided with a yoke having a platy body and a plurality of branched legs formed almost perpendicularly in the same direction to one end and opposing another end of the body, voice coil fitted into any branched leg of a plurality of branched legs at a fixed interval with the branched legs, respectively, magnet placed at a fixed interval from the voice coil between a pair of voice coils fitted into any branched leg of the one end and the other end, plate placed to abut on the opposite surface of the yoke side of the magnet, and a diaphragm placed at the opposite surface of the plate abutting on the magnet.


Inventors:
Lee Chan
Jun Motomoto
Application Number:
JP2001055405A
Publication Date:
December 16, 2002
Filing Date:
February 28, 2001
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
Doumi Tech Co., Ltd.
International Classes:
H04R23/00; H04R1/00; H04R1/10; H04R9/02; H04R13/00; H04R25/00; (IPC1-7): H04R1/00; H04R1/10; H04R13/00; H04R25/00
Domestic Patent References:
JP11355871A
Attorney, Agent or Firm:
Toru Seya (1 outside)



 
Previous Patent: STRUCTURE OF DRAIN

Next Patent: 光電スイッチ