发明名称 SYSTEM AND METHOD OF SAFE AND AUTOMATIC ACOUSTIC VOLUME ADJUSTMENT FOR HANDSFREE OPERATION
摘要 A system and method of acoustically safe automatic handsfree volume adjustme nt on mobile communication devices is provided. When the device is selected to operate in handsfree mode, the system automatically defaults to an acoustically safe volume profile such that the device does not cause hearing damage.
申请公布号 CA2534774(A1) 申请公布日期 2005.02.10
申请号 CA20032534774 申请日期 2003.10.30
申请人 RESEARCH IN MOTION LIMITED 发明人 TOEWS, DAN J.A.;KYOWSKI, TIMOTHY H.;HAWKER, LARRY E.
分类号 H04M1/60;H04M1/725 主分类号 H04M1/60
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