发明名称 |
Method and system for controlling a maximum signal level output to headphones coupled to a wireless device |
摘要 |
<p>A method for controlling a maximum signal level output to headphones of a wireless device is provided. The method includes: determining an impedance of the headphones; determining a carrier specific maximum signal level for headphones having the impedance; and, adjusting an audio amplifier of the wireless device coupled to the headphones to restrict the maximum signal level output to the headphones to the carrier specific maximum signal level.</p> |
申请公布号 |
EP2453672(A1) |
申请公布日期 |
2012.05.16 |
申请号 |
EP20110195765 |
申请日期 |
2009.02.27 |
申请人 |
RESEARCH IN MOTION LIMITED |
发明人 |
MARTIN, CYRIL |
分类号 |
H04R5/04;H04R1/10;H04R5/033;H04R29/00 |
主分类号 |
H04R5/04 |
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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