发明名称 ELECTRONIC DEVICE
摘要 An electronic device of the present invention has a configuration in which an enclosed space is formed continuously from an opening face of a cone portion of a speaker on a reverse side of a main face of a flat housing, and an opening portion of the enclosed space is formed in a face not parallel to the main face of the housing, whereby even when a reduction in diameter of a speaker is inevitable and there is a limit to a space volume for housing the speaker due to the downsizing of the device, sound information can be reproduced with higher quality.
申请公布号 US2012087535(A1) 申请公布日期 2012.04.12
申请号 US201113253448 申请日期 2011.10.05
申请人 PANASONIC CORPORATION 发明人 TANAKA SHINTARO
分类号 H04R1/02 主分类号 H04R1/02
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