发明名称 |
Earphone antenna and wireless device including the same |
摘要 |
An earphone antenna is provided in which two pairs of audio/high-frequency signal lines respectively corresponding to left and right earphone units are connected to a balun. The left and right earphone units are connected to terminals of the two pairs of audio/high-frequency signal lines remote from the balun via loading coils, respectively. The terminals of the two pairs of audio/high-frequency signal lines remote from the balun are further connected to each other by a pair of conductive lines via audio blocking means. The earphone antenna having such a structure can eliminate high-frequency adverse effects on a wireless device transmitted from a human body via an earphone. |
申请公布号 |
US7671813(B2) |
申请公布日期 |
2010.03.02 |
申请号 |
US20040547385 |
申请日期 |
2004.02.12 |
申请人 |
SONY CORPORATION |
发明人 |
YOSHINO YOSHITAKA;OOZEKI MINORU;IMAGAWA TOSHIYUKI |
分类号 |
H01Q1/12;H04R1/10;H01Q1/22;H01Q1/24;H01Q1/46;H01Q7/00;H01Q9/26;H01Q9/44;H04B1/18;H04R5/033 |
主分类号 |
H01Q1/12 |
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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