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EARMUFF ENCLOSURE
专利权人:
John Jenkins
发明人:
John Jenkins
申请号:
US13178322
公开号:
US20120243700A1
申请日:
2011.07.07
申请国别(地区):
US
年份:
2012
代理人:
摘要:
Embodiments relate to earmuffs with speakers, and attempt to improve speaker acoustic quality without negatively impacting sound attenuation of the earmuffs. Embodiments may comprise a speaker plate located behind a speaker unit, and typically the speaker plate comprises a recessed portion with a plurality of holes. When the speaker plate is in place behind the speaker unit, it may cause the speaker to be more accurate across a broad range of frequencies without negatively impacting sound attenuation.
来源网站:
中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/

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