发明名称 |
Body set type speaker unit |
摘要 |
An ear-hanging type speakerphone unit that allows users to listen to both sounds from the speaker and sounds from the outside environment, while suppressing leakage of the sounds emanating from the speaker to the outside environment, is provide for. A directional speaker is adjustably held with its speaker face being, for example, approximately 1 to 2 cm. away from the opening of an external auditory miatus, such that an open air space is formed between the speaker face and the opening of the miatus.
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申请公布号 |
US2002012441(A1) |
申请公布日期 |
2002.01.31 |
申请号 |
US20010916027 |
申请日期 |
2001.07.26 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
MATSUNAGA KATSUYA;SEGAWA TAKASHI |
分类号 |
A42B1/24;A42B3/30;H04M1/05;H04M1/60;H04R1/00;H04R1/08;H04R1/10;H04R1/32;(IPC1-7):H04R25/00;H04M1/00 |
主分类号 |
A42B1/24 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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