Title:
Active noise canceling headphones
Document Type and Number:
Japanese Patent JP6304400
Kind Code:
B2
Abstract:
Provided is an active noise cancelling headphone with which noise can be reduced over a wide frequency range. Ear cups (2A, 2B) are provided with a first microphone (23) and a second microphone (24), thereby making it possible to collect and cancel noise components in a low frequency range. Further, an internal space (S1) is in communication with the outside through an air chamber (S2), so that when noise penetrates from the outside to the internal space (S1), noise components in middle and high frequency ranges, in particular, are readily attenuated, and thus the noise components in the middle and high frequency ranges can be reduced.
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Inventors:
Ito regular
Yoshiaki Mogi
Yoshiaki Mogi
Application Number:
JP2016561114A
Publication Date:
April 04, 2018
Filing Date:
November 25, 2014
Export Citation:
Assignee:
Onkyo Co., Ltd.
International Classes:
H04R1/10
Domestic Patent References:
| JP200059876A | ||||
| JP200899127A | ||||
| JP7240989A | ||||
| JP2009278167A |
Foreign References:
| WO2013108370A1 |
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