Title:
スープラオーラルヘッドホン
Document Type and Number:
Japanese Patent JP3746810
Kind Code:
B2
Abstract:
A supra aural headphone 10 includes an earphone 12. The earphone has a shell 14 and a cushion 16 mounted on the shell. The cushion and the inside of the shell define an internal cavity 30 behind the cushion, and the cushion has a passageway 28 extending therethrough so as to acoustically connect the internal cavity with a user's ear cavity when the cushion is resting on the user's ear while being worn by the user. The internal cavity 30 has a total volume that is larger than 10 cm<3>, so as to attenuate passively external sound which leaks through the earphone 12 to the user's ear cavity.
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Inventors:
Roman Sapijeski
Application Number:
JP15163195A
Publication Date:
February 15, 2006
Filing Date:
June 19, 1995
Export Citation:
Assignee:
BOSE CORPORATION
International Classes:
H04R1/10; H04R5/033
Domestic Patent References:
| JP51062820U | ||||
| JP57092995A | ||||
| JP3215000A | ||||
| JP6121386A |
Attorney, Agent or Firm:
Kenji Yoshida
Jun Ishida
Jun Ishida